./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 f6cc861ca86011eb32ffd09a18c7045c0cb28e684d3b73d1659bc499a4213e84 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 05:34:17,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 05:34:17,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 05:34:17,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 05:34:17,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 05:34:17,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 05:34:17,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 05:34:17,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 05:34:17,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 05:34:17,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 05:34:17,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 05:34:17,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 05:34:17,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 05:34:17,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 05:34:17,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 05:34:17,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 05:34:17,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 05:34:17,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 05:34:17,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 05:34:17,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 05:34:17,516 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 05:34:17,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 05:34:17,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 05:34:17,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 05:34:17,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 05:34:17,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 05:34:17,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 05:34:17,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 05:34:17,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 05:34:17,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 05:34:17,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 05:34:17,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 05:34:17,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 05:34:17,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 05:34:17,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 05:34:17,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 05:34:17,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 05:34:17,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 05:34:17,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 05:34:17,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 05:34:17,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 05:34:17,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 05:34:17,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 05:34:17,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 05:34:17,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 05:34:17,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 05:34:17,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 05:34:17,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 05:34:17,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 05:34:17,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 05:34:17,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 05:34:17,561 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 05:34:17,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 05:34:17,562 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 05:34:17,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 05:34:17,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 05:34:17,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 05:34:17,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 05:34:17,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 05:34:17,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 05:34:17,563 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 05:34:17,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 05:34:17,564 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 05:34:17,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 05:34:17,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 05:34:17,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 05:34:17,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 05:34:17,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:34:17,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 05:34:17,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 05:34:17,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 05:34:17,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 05:34:17,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 05:34:17,566 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 05:34:17,566 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 05:34:17,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 05:34:17,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6cc861ca86011eb32ffd09a18c7045c0cb28e684d3b73d1659bc499a4213e84 [2022-07-12 05:34:17,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 05:34:17,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 05:34:17,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 05:34:17,797 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 05:34:17,798 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 05:34:17,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c [2022-07-12 05:34:17,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8479da735/e8532783304d43d9bd21de09829cd228/FLAG3ead0b1d1 [2022-07-12 05:34:18,410 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 05:34:18,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c [2022-07-12 05:34:18,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8479da735/e8532783304d43d9bd21de09829cd228/FLAG3ead0b1d1 [2022-07-12 05:34:18,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8479da735/e8532783304d43d9bd21de09829cd228 [2022-07-12 05:34:18,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 05:34:18,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 05:34:18,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 05:34:18,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 05:34:18,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 05:34:18,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:34:18" (1/1) ... [2022-07-12 05:34:18,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7af960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:18, skipping insertion in model container [2022-07-12 05:34:18,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:34:18" (1/1) ... [2022-07-12 05:34:18,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 05:34:18,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 05:34:19,191 WARN L230 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/elevator_spec14_product20.cil.c[69987,70000] [2022-07-12 05:34:19,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:34:19,209 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 05:34:19,304 WARN L230 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/elevator_spec14_product20.cil.c[69987,70000] [2022-07-12 05:34:19,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:34:19,332 INFO L208 MainTranslator]: Completed translation [2022-07-12 05:34:19,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19 WrapperNode [2022-07-12 05:34:19,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 05:34:19,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 05:34:19,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 05:34:19,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 05:34:19,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,436 INFO L137 Inliner]: procedures = 93, calls = 339, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 1060 [2022-07-12 05:34:19,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 05:34:19,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 05:34:19,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 05:34:19,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 05:34:19,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 05:34:19,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 05:34:19,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 05:34:19,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 05:34:19,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (1/1) ... [2022-07-12 05:34:19,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:34:19,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:34:19,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 05:34:19,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 05:34:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 05:34:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-12 05:34:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-12 05:34:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-12 05:34:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-12 05:34:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2022-07-12 05:34:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2022-07-12 05:34:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-12 05:34:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-12 05:34:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-12 05:34:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-12 05:34:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-12 05:34:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-12 05:34:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-07-12 05:34:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-07-12 05:34:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-12 05:34:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-12 05:34:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 05:34:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 05:34:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 05:34:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 05:34:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-07-12 05:34:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-07-12 05:34:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-12 05:34:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-12 05:34:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-12 05:34:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-12 05:34:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-12 05:34:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-12 05:34:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-12 05:34:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-12 05:34:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-12 05:34:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-12 05:34:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-12 05:34:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-12 05:34:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-12 05:34:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-12 05:34:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-12 05:34:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-12 05:34:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-12 05:34:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-12 05:34:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 05:34:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-12 05:34:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-12 05:34:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-12 05:34:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-12 05:34:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-12 05:34:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-12 05:34:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 05:34:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 05:34:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-12 05:34:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-12 05:34:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2022-07-12 05:34:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2022-07-12 05:34:19,785 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 05:34:19,787 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 05:34:20,566 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 05:34:20,582 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 05:34:20,582 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 05:34:20,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:34:20 BoogieIcfgContainer [2022-07-12 05:34:20,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 05:34:20,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 05:34:20,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 05:34:20,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 05:34:20,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 05:34:18" (1/3) ... [2022-07-12 05:34:20,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1546df45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:34:20, skipping insertion in model container [2022-07-12 05:34:20,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:34:19" (2/3) ... [2022-07-12 05:34:20,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1546df45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:34:20, skipping insertion in model container [2022-07-12 05:34:20,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:34:20" (3/3) ... [2022-07-12 05:34:20,601 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product20.cil.c [2022-07-12 05:34:20,611 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 05:34:20,611 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 05:34:20,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 05:34:20,687 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@122b652d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@688ecb6e [2022-07-12 05:34:20,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 05:34:20,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 545 states, 421 states have (on average 1.669833729216152) internal successors, (703), 439 states have internal predecessors, (703), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-12 05:34:20,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-12 05:34:20,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:20,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:20,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:20,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:20,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1406602472, now seen corresponding path program 1 times [2022-07-12 05:34:20,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:20,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702320646] [2022-07-12 05:34:20,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:20,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:21,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:21,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:21,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:21,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 05:34:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:21,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:34:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:21,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:21,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:34:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:21,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:34:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:21,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:21,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:21,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702320646] [2022-07-12 05:34:21,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702320646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:21,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:21,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:21,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62681295] [2022-07-12 05:34:21,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:21,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:21,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:21,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:21,255 INFO L87 Difference]: Start difference. First operand has 545 states, 421 states have (on average 1.669833729216152) internal successors, (703), 439 states have internal predecessors, (703), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:23,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:23,723 INFO L93 Difference]: Finished difference Result 1206 states and 2011 transitions. [2022-07-12 05:34:23,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:34:23,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2022-07-12 05:34:23,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:23,742 INFO L225 Difference]: With dead ends: 1206 [2022-07-12 05:34:23,742 INFO L226 Difference]: Without dead ends: 661 [2022-07-12 05:34:23,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:34:23,752 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 630 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:23,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1970 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 05:34:23,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-12 05:34:23,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 540. [2022-07-12 05:34:23,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 417 states have (on average 1.65947242206235) internal successors, (692), 434 states have internal predecessors, (692), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:23,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 885 transitions. [2022-07-12 05:34:23,854 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 885 transitions. Word has length 63 [2022-07-12 05:34:23,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:23,855 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 885 transitions. [2022-07-12 05:34:23,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:23,855 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 885 transitions. [2022-07-12 05:34:23,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-12 05:34:23,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:23,859 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:23,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 05:34:23,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:23,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:23,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1205862229, now seen corresponding path program 1 times [2022-07-12 05:34:23,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:23,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091526539] [2022-07-12 05:34:23,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:23,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:23,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:23,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:34:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:23,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 05:34:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:24,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:34:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:24,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:24,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:34:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:24,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:34:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:24,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:24,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:24,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091526539] [2022-07-12 05:34:24,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091526539] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:24,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:24,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:24,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327098055] [2022-07-12 05:34:24,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:24,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:24,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:24,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:24,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:24,017 INFO L87 Difference]: Start difference. First operand 540 states and 885 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:26,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:26,250 INFO L93 Difference]: Finished difference Result 1184 states and 1955 transitions. [2022-07-12 05:34:26,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:34:26,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2022-07-12 05:34:26,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:26,254 INFO L225 Difference]: With dead ends: 1184 [2022-07-12 05:34:26,255 INFO L226 Difference]: Without dead ends: 661 [2022-07-12 05:34:26,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:34:26,257 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 622 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:26,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1928 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 05:34:26,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-12 05:34:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 540. [2022-07-12 05:34:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 417 states have (on average 1.6570743405275778) internal successors, (691), 434 states have internal predecessors, (691), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:26,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 884 transitions. [2022-07-12 05:34:26,305 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 884 transitions. Word has length 64 [2022-07-12 05:34:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:26,305 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 884 transitions. [2022-07-12 05:34:26,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:26,306 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 884 transitions. [2022-07-12 05:34:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 05:34:26,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:26,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:26,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 05:34:26,311 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:26,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:26,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1806176572, now seen corresponding path program 1 times [2022-07-12 05:34:26,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:26,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365419429] [2022-07-12 05:34:26,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:26,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:26,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:26,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:34:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:26,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 05:34:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:26,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:34:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:26,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:26,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:34:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:26,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:34:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:26,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:26,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:26,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365419429] [2022-07-12 05:34:26,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365419429] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:26,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:26,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:26,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390442054] [2022-07-12 05:34:26,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:26,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:26,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:26,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:26,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:26,509 INFO L87 Difference]: Start difference. First operand 540 states and 884 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:28,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:28,600 INFO L93 Difference]: Finished difference Result 1184 states and 1954 transitions. [2022-07-12 05:34:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:34:28,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2022-07-12 05:34:28,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:28,608 INFO L225 Difference]: With dead ends: 1184 [2022-07-12 05:34:28,609 INFO L226 Difference]: Without dead ends: 661 [2022-07-12 05:34:28,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:34:28,611 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 619 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:28,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1928 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 05:34:28,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-12 05:34:28,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 540. [2022-07-12 05:34:28,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 417 states have (on average 1.6546762589928057) internal successors, (690), 434 states have internal predecessors, (690), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:28,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 883 transitions. [2022-07-12 05:34:28,652 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 883 transitions. Word has length 65 [2022-07-12 05:34:28,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:28,652 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 883 transitions. [2022-07-12 05:34:28,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:28,657 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 883 transitions. [2022-07-12 05:34:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 05:34:28,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:28,659 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:28,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 05:34:28,659 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:28,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash -159371961, now seen corresponding path program 1 times [2022-07-12 05:34:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:28,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491069786] [2022-07-12 05:34:28,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:28,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:28,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:28,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 05:34:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:34:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:28,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:34:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:28,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:28,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 05:34:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:28,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:34:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:28,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:28,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491069786] [2022-07-12 05:34:28,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491069786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:28,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:28,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:28,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995662701] [2022-07-12 05:34:28,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:28,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:28,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:28,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:28,851 INFO L87 Difference]: Start difference. First operand 540 states and 883 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:30,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:30,905 INFO L93 Difference]: Finished difference Result 1184 states and 1953 transitions. [2022-07-12 05:34:30,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:34:30,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2022-07-12 05:34:30,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:30,911 INFO L225 Difference]: With dead ends: 1184 [2022-07-12 05:34:30,911 INFO L226 Difference]: Without dead ends: 661 [2022-07-12 05:34:30,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:34:30,914 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 616 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:30,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1928 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 05:34:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-12 05:34:30,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 540. [2022-07-12 05:34:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 417 states have (on average 1.6522781774580335) internal successors, (689), 434 states have internal predecessors, (689), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:30,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 882 transitions. [2022-07-12 05:34:30,939 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 882 transitions. Word has length 66 [2022-07-12 05:34:30,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:30,940 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 882 transitions. [2022-07-12 05:34:30,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 882 transitions. [2022-07-12 05:34:30,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 05:34:30,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:30,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:30,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 05:34:30,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:30,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:30,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1866323808, now seen corresponding path program 1 times [2022-07-12 05:34:30,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:30,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104996232] [2022-07-12 05:34:30,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:30,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:31,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:31,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:31,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 05:34:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:31,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 05:34:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:31,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:34:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:31,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:34:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:31,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:34:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:31,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:31,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:31,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104996232] [2022-07-12 05:34:31,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104996232] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:31,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:31,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:31,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929638815] [2022-07-12 05:34:31,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:31,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:31,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:31,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:31,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:31,065 INFO L87 Difference]: Start difference. First operand 540 states and 882 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:33,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:33,148 INFO L93 Difference]: Finished difference Result 1184 states and 1952 transitions. [2022-07-12 05:34:33,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:34:33,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2022-07-12 05:34:33,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:33,152 INFO L225 Difference]: With dead ends: 1184 [2022-07-12 05:34:33,153 INFO L226 Difference]: Without dead ends: 661 [2022-07-12 05:34:33,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:34:33,155 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 613 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:33,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1928 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 05:34:33,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-12 05:34:33,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 540. [2022-07-12 05:34:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 417 states have (on average 1.6498800959232613) internal successors, (688), 434 states have internal predecessors, (688), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 881 transitions. [2022-07-12 05:34:33,187 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 881 transitions. Word has length 67 [2022-07-12 05:34:33,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:33,188 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 881 transitions. [2022-07-12 05:34:33,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:33,188 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 881 transitions. [2022-07-12 05:34:33,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 05:34:33,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:33,189 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:33,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 05:34:33,189 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash -165543453, now seen corresponding path program 1 times [2022-07-12 05:34:33,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:33,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789408126] [2022-07-12 05:34:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:33,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:33,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:33,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 05:34:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:33,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 05:34:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:33,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:33,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 05:34:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:33,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:34:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:33,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:33,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789408126] [2022-07-12 05:34:33,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789408126] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:33,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:33,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:33,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913978473] [2022-07-12 05:34:33,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:33,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:33,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:33,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:33,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:33,354 INFO L87 Difference]: Start difference. First operand 540 states and 881 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:35,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:35,635 INFO L93 Difference]: Finished difference Result 1209 states and 1996 transitions. [2022-07-12 05:34:35,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:34:35,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2022-07-12 05:34:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:35,640 INFO L225 Difference]: With dead ends: 1209 [2022-07-12 05:34:35,640 INFO L226 Difference]: Without dead ends: 690 [2022-07-12 05:34:35,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:34:35,644 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 691 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:35,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1859 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 05:34:35,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-07-12 05:34:35,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 560. [2022-07-12 05:34:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 436 states have (on average 1.6444954128440368) internal successors, (717), 453 states have internal predecessors, (717), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:35,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 910 transitions. [2022-07-12 05:34:35,681 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 910 transitions. Word has length 68 [2022-07-12 05:34:35,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:35,681 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 910 transitions. [2022-07-12 05:34:35,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:35,681 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 910 transitions. [2022-07-12 05:34:35,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-12 05:34:35,682 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:35,682 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:35,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 05:34:35,682 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:35,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:35,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1703459071, now seen corresponding path program 1 times [2022-07-12 05:34:35,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:35,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053148470] [2022-07-12 05:34:35,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:35,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:35,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:35,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:35,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 05:34:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:35,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:34:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:35,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:34:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:35,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:34:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:35,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:35,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053148470] [2022-07-12 05:34:35,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053148470] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:35,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:35,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:35,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300289514] [2022-07-12 05:34:35,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:35,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:35,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:35,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:35,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:35,825 INFO L87 Difference]: Start difference. First operand 560 states and 910 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:38,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:38,037 INFO L93 Difference]: Finished difference Result 1193 states and 1947 transitions. [2022-07-12 05:34:38,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:34:38,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2022-07-12 05:34:38,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:38,041 INFO L225 Difference]: With dead ends: 1193 [2022-07-12 05:34:38,041 INFO L226 Difference]: Without dead ends: 690 [2022-07-12 05:34:38,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:34:38,044 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 666 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:38,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1857 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 05:34:38,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-07-12 05:34:38,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 560. [2022-07-12 05:34:38,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 436 states have (on average 1.6330275229357798) internal successors, (712), 453 states have internal predecessors, (712), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:38,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 905 transitions. [2022-07-12 05:34:38,075 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 905 transitions. Word has length 69 [2022-07-12 05:34:38,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:38,076 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 905 transitions. [2022-07-12 05:34:38,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:38,076 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 905 transitions. [2022-07-12 05:34:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 05:34:38,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:38,077 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:38,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 05:34:38,078 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:38,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:38,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2047970776, now seen corresponding path program 1 times [2022-07-12 05:34:38,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:38,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515296336] [2022-07-12 05:34:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:38,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:38,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:38,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:38,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:38,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:34:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 05:34:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:38,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:34:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 05:34:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:38,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:38,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:38,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515296336] [2022-07-12 05:34:38,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515296336] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:38,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:38,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:38,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122108233] [2022-07-12 05:34:38,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:38,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:38,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:38,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:38,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:38,214 INFO L87 Difference]: Start difference. First operand 560 states and 905 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:40,189 INFO L93 Difference]: Finished difference Result 1193 states and 1942 transitions. [2022-07-12 05:34:40,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:34:40,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2022-07-12 05:34:40,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:40,196 INFO L225 Difference]: With dead ends: 1193 [2022-07-12 05:34:40,196 INFO L226 Difference]: Without dead ends: 690 [2022-07-12 05:34:40,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:34:40,198 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 665 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:40,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1857 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 05:34:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-07-12 05:34:40,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 560. [2022-07-12 05:34:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 436 states have (on average 1.621559633027523) internal successors, (707), 453 states have internal predecessors, (707), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 900 transitions. [2022-07-12 05:34:40,228 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 900 transitions. Word has length 70 [2022-07-12 05:34:40,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:40,229 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 900 transitions. [2022-07-12 05:34:40,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:40,229 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 900 transitions. [2022-07-12 05:34:40,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 05:34:40,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:40,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:40,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 05:34:40,232 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:40,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:40,233 INFO L85 PathProgramCache]: Analyzing trace with hash 243300454, now seen corresponding path program 1 times [2022-07-12 05:34:40,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:40,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822368420] [2022-07-12 05:34:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:40,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:40,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:40,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:40,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:34:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:40,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:34:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:40,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:34:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:40,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:34:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:40,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:40,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:40,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822368420] [2022-07-12 05:34:40,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822368420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:40,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:40,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:40,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914729133] [2022-07-12 05:34:40,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:40,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:40,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:40,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:40,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:40,372 INFO L87 Difference]: Start difference. First operand 560 states and 900 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:42,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:42,328 INFO L93 Difference]: Finished difference Result 1193 states and 1937 transitions. [2022-07-12 05:34:42,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:34:42,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-07-12 05:34:42,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:42,332 INFO L225 Difference]: With dead ends: 1193 [2022-07-12 05:34:42,332 INFO L226 Difference]: Without dead ends: 690 [2022-07-12 05:34:42,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:34:42,334 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 664 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:42,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1857 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 05:34:42,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-07-12 05:34:42,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 560. [2022-07-12 05:34:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 436 states have (on average 1.610091743119266) internal successors, (702), 453 states have internal predecessors, (702), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:42,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 895 transitions. [2022-07-12 05:34:42,357 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 895 transitions. Word has length 71 [2022-07-12 05:34:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:42,357 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 895 transitions. [2022-07-12 05:34:42,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 895 transitions. [2022-07-12 05:34:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 05:34:42,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:42,358 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:42,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 05:34:42,358 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:42,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1558871751, now seen corresponding path program 1 times [2022-07-12 05:34:42,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:42,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159767550] [2022-07-12 05:34:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:42,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:42,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:42,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:42,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:34:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:42,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:34:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:42,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:42,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:34:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:34:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:42,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:42,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159767550] [2022-07-12 05:34:42,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159767550] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:42,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:42,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:42,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412376395] [2022-07-12 05:34:42,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:42,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:42,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:42,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:42,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:42,628 INFO L87 Difference]: Start difference. First operand 560 states and 895 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:44,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:44,712 INFO L93 Difference]: Finished difference Result 1220 states and 1971 transitions. [2022-07-12 05:34:44,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:34:44,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-07-12 05:34:44,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:44,716 INFO L225 Difference]: With dead ends: 1220 [2022-07-12 05:34:44,716 INFO L226 Difference]: Without dead ends: 723 [2022-07-12 05:34:44,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:34:44,719 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 676 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:44,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1902 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 05:34:44,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-07-12 05:34:44,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 564. [2022-07-12 05:34:44,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 440 states have (on average 1.6045454545454545) internal successors, (706), 457 states have internal predecessors, (706), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 899 transitions. [2022-07-12 05:34:44,742 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 899 transitions. Word has length 71 [2022-07-12 05:34:44,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:44,742 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 899 transitions. [2022-07-12 05:34:44,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 899 transitions. [2022-07-12 05:34:44,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 05:34:44,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:44,743 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:44,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 05:34:44,743 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:44,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:44,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1655503251, now seen corresponding path program 1 times [2022-07-12 05:34:44,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:44,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755570265] [2022-07-12 05:34:44,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:44,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:44,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:44,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:34:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:44,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:34:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:44,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:34:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:34:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:44,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:44,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755570265] [2022-07-12 05:34:44,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755570265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:44,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:44,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:44,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189145516] [2022-07-12 05:34:44,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:44,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:44,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:44,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:44,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:44,882 INFO L87 Difference]: Start difference. First operand 564 states and 899 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:46,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:46,914 INFO L93 Difference]: Finished difference Result 1203 states and 1941 transitions. [2022-07-12 05:34:46,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:34:46,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2022-07-12 05:34:46,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:46,917 INFO L225 Difference]: With dead ends: 1203 [2022-07-12 05:34:46,918 INFO L226 Difference]: Without dead ends: 696 [2022-07-12 05:34:46,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:34:46,920 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 663 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:46,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1857 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 05:34:46,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-07-12 05:34:46,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 564. [2022-07-12 05:34:46,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 440 states have (on average 1.5931818181818183) internal successors, (701), 457 states have internal predecessors, (701), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:46,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 894 transitions. [2022-07-12 05:34:46,945 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 894 transitions. Word has length 72 [2022-07-12 05:34:46,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:46,946 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 894 transitions. [2022-07-12 05:34:46,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:46,946 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 894 transitions. [2022-07-12 05:34:46,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 05:34:46,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:46,947 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:46,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 05:34:46,947 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:46,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:46,948 INFO L85 PathProgramCache]: Analyzing trace with hash 739668010, now seen corresponding path program 1 times [2022-07-12 05:34:46,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:46,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550498828] [2022-07-12 05:34:46,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:46,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:47,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:47,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:47,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:34:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:47,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:34:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:34:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:34:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:47,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:47,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:47,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550498828] [2022-07-12 05:34:47,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550498828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:47,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:47,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:47,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031768381] [2022-07-12 05:34:47,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:47,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:47,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:47,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:47,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:47,088 INFO L87 Difference]: Start difference. First operand 564 states and 894 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:49,115 INFO L93 Difference]: Finished difference Result 1228 states and 1970 transitions. [2022-07-12 05:34:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:34:49,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2022-07-12 05:34:49,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:49,119 INFO L225 Difference]: With dead ends: 1228 [2022-07-12 05:34:49,119 INFO L226 Difference]: Without dead ends: 729 [2022-07-12 05:34:49,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:34:49,121 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 679 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:49,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 1882 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 05:34:49,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-07-12 05:34:49,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 570. [2022-07-12 05:34:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 446 states have (on average 1.5852017937219731) internal successors, (707), 463 states have internal predecessors, (707), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:49,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 900 transitions. [2022-07-12 05:34:49,143 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 900 transitions. Word has length 72 [2022-07-12 05:34:49,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:49,144 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 900 transitions. [2022-07-12 05:34:49,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:49,144 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 900 transitions. [2022-07-12 05:34:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 05:34:49,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:49,145 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:49,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 05:34:49,145 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:49,146 INFO L85 PathProgramCache]: Analyzing trace with hash -302643765, now seen corresponding path program 1 times [2022-07-12 05:34:49,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:49,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653672075] [2022-07-12 05:34:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:49,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:49,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:49,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:49,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:34:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:49,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:34:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:49,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:34:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:49,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:34:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:49,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:49,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653672075] [2022-07-12 05:34:49,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653672075] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:49,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:49,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 05:34:49,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755729474] [2022-07-12 05:34:49,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:49,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 05:34:49,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:49,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 05:34:49,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:34:49,274 INFO L87 Difference]: Start difference. First operand 570 states and 900 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-12 05:34:51,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:51,956 INFO L93 Difference]: Finished difference Result 1233 states and 1973 transitions. [2022-07-12 05:34:51,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 05:34:51,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2022-07-12 05:34:51,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:51,961 INFO L225 Difference]: With dead ends: 1233 [2022-07-12 05:34:51,961 INFO L226 Difference]: Without dead ends: 734 [2022-07-12 05:34:51,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:34:51,963 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 692 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 2907 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 3392 SdHoareTripleChecker+Invalid, 3034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:51,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 3392 Invalid, 3034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2907 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 05:34:51,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-07-12 05:34:51,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 581. [2022-07-12 05:34:51,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 454 states have (on average 1.5814977973568283) internal successors, (718), 473 states have internal predecessors, (718), 98 states have call successors, (98), 27 states have call predecessors, (98), 28 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2022-07-12 05:34:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 915 transitions. [2022-07-12 05:34:51,989 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 915 transitions. Word has length 73 [2022-07-12 05:34:51,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:51,989 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 915 transitions. [2022-07-12 05:34:51,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-12 05:34:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 915 transitions. [2022-07-12 05:34:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 05:34:51,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:51,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:51,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 05:34:51,991 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:51,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:51,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1129327380, now seen corresponding path program 1 times [2022-07-12 05:34:51,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:51,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486442783] [2022-07-12 05:34:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:51,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:52,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:34:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:34:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:52,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:34:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:52,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:34:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:52,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:52,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486442783] [2022-07-12 05:34:52,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486442783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:52,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:52,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:52,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069294296] [2022-07-12 05:34:52,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:52,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:52,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:52,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:52,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:52,148 INFO L87 Difference]: Start difference. First operand 581 states and 915 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:54,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:54,219 INFO L93 Difference]: Finished difference Result 1261 states and 2011 transitions. [2022-07-12 05:34:54,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:34:54,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-07-12 05:34:54,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:54,222 INFO L225 Difference]: With dead ends: 1261 [2022-07-12 05:34:54,222 INFO L226 Difference]: Without dead ends: 756 [2022-07-12 05:34:54,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:34:54,238 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 675 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:54,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1888 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 05:34:54,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-07-12 05:34:54,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 589. [2022-07-12 05:34:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 462 states have (on average 1.5692640692640694) internal successors, (725), 481 states have internal predecessors, (725), 98 states have call successors, (98), 27 states have call predecessors, (98), 28 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2022-07-12 05:34:54,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 922 transitions. [2022-07-12 05:34:54,282 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 922 transitions. Word has length 73 [2022-07-12 05:34:54,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:54,283 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 922 transitions. [2022-07-12 05:34:54,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:54,304 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 922 transitions. [2022-07-12 05:34:54,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 05:34:54,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:54,306 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:54,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 05:34:54,307 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:54,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:54,308 INFO L85 PathProgramCache]: Analyzing trace with hash 327814860, now seen corresponding path program 1 times [2022-07-12 05:34:54,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:54,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943156637] [2022-07-12 05:34:54,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:54,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:54,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:54,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:34:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:34:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:54,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:54,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:34:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:34:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:54,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:54,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:54,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943156637] [2022-07-12 05:34:54,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943156637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:54,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:54,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:54,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607099082] [2022-07-12 05:34:54,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:54,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:54,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:54,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:54,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:54,431 INFO L87 Difference]: Start difference. First operand 589 states and 922 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:56,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:56,495 INFO L93 Difference]: Finished difference Result 1299 states and 2049 transitions. [2022-07-12 05:34:56,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:34:56,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-07-12 05:34:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:56,498 INFO L225 Difference]: With dead ends: 1299 [2022-07-12 05:34:56,498 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 05:34:56,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:34:56,500 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 613 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:56,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1989 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 05:34:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 05:34:56,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 570. [2022-07-12 05:34:56,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 446 states have (on average 1.5739910313901346) internal successors, (702), 463 states have internal predecessors, (702), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:56,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 895 transitions. [2022-07-12 05:34:56,523 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 895 transitions. Word has length 73 [2022-07-12 05:34:56,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:56,523 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 895 transitions. [2022-07-12 05:34:56,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:56,524 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 895 transitions. [2022-07-12 05:34:56,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-12 05:34:56,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:56,524 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:56,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 05:34:56,525 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:56,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:56,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1182125521, now seen corresponding path program 1 times [2022-07-12 05:34:56,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:56,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963098764] [2022-07-12 05:34:56,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:56,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:56,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:56,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:56,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:56,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:34:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:56,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:34:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:56,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:56,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:34:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:56,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:34:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:56,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:56,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963098764] [2022-07-12 05:34:56,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963098764] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:56,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:56,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 05:34:56,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464225815] [2022-07-12 05:34:56,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:56,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:34:56,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:56,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:34:56,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:34:56,636 INFO L87 Difference]: Start difference. First operand 570 states and 895 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:58,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:34:58,677 INFO L93 Difference]: Finished difference Result 1246 states and 1974 transitions. [2022-07-12 05:34:58,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:34:58,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2022-07-12 05:34:58,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:34:58,682 INFO L225 Difference]: With dead ends: 1246 [2022-07-12 05:34:58,682 INFO L226 Difference]: Without dead ends: 740 [2022-07-12 05:34:58,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:34:58,684 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 657 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:34:58,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1879 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 05:34:58,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-07-12 05:34:58,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 580. [2022-07-12 05:34:58,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 456 states have (on average 1.5614035087719298) internal successors, (712), 473 states have internal predecessors, (712), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-07-12 05:34:58,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 905 transitions. [2022-07-12 05:34:58,708 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 905 transitions. Word has length 74 [2022-07-12 05:34:58,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:34:58,708 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 905 transitions. [2022-07-12 05:34:58,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:34:58,708 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 905 transitions. [2022-07-12 05:34:58,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-12 05:34:58,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:34:58,709 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:34:58,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 05:34:58,710 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:34:58,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:34:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash -480673503, now seen corresponding path program 1 times [2022-07-12 05:34:58,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:34:58,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137305648] [2022-07-12 05:34:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:34:58,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:34:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:34:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:58,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:34:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:58,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:34:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:58,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:34:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:58,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:34:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:58,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:34:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:34:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:34:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 05:34:58,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:34:58,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137305648] [2022-07-12 05:34:58,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137305648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:34:58,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:34:58,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 05:34:58,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619248033] [2022-07-12 05:34:58,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:34:58,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:34:58,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:34:58,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:34:58,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 05:34:58,853 INFO L87 Difference]: Start difference. First operand 580 states and 905 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-12 05:35:02,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:02,018 INFO L93 Difference]: Finished difference Result 1824 states and 2932 transitions. [2022-07-12 05:35:02,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:35:02,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2022-07-12 05:35:02,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:02,024 INFO L225 Difference]: With dead ends: 1824 [2022-07-12 05:35:02,024 INFO L226 Difference]: Without dead ends: 1320 [2022-07-12 05:35:02,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 05:35:02,026 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 1825 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:02,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 1525 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 05:35:02,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-07-12 05:35:02,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1017. [2022-07-12 05:35:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 801 states have (on average 1.5880149812734083) internal successors, (1272), 827 states have internal predecessors, (1272), 170 states have call successors, (170), 47 states have call predecessors, (170), 45 states have return successors, (175), 157 states have call predecessors, (175), 168 states have call successors, (175) [2022-07-12 05:35:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1617 transitions. [2022-07-12 05:35:02,078 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1617 transitions. Word has length 75 [2022-07-12 05:35:02,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:02,078 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1617 transitions. [2022-07-12 05:35:02,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-12 05:35:02,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1617 transitions. [2022-07-12 05:35:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 05:35:02,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:02,081 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:02,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 05:35:02,081 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash 295926178, now seen corresponding path program 1 times [2022-07-12 05:35:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:02,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321180295] [2022-07-12 05:35:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:02,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:35:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:35:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:35:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 05:35:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 05:35:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:35:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-12 05:35:02,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:02,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321180295] [2022-07-12 05:35:02,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321180295] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:02,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692596968] [2022-07-12 05:35:02,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:02,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:02,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:02,360 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:02,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 05:35:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:02,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:35:02,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:02,676 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-12 05:35:02,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:02,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692596968] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:02,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:02,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-07-12 05:35:02,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268581741] [2022-07-12 05:35:02,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:02,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:35:02,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:02,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:35:02,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:35:02,682 INFO L87 Difference]: Start difference. First operand 1017 states and 1617 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:02,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:02,881 INFO L93 Difference]: Finished difference Result 2887 states and 4711 transitions. [2022-07-12 05:35:02,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:35:02,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2022-07-12 05:35:02,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:02,890 INFO L225 Difference]: With dead ends: 2887 [2022-07-12 05:35:02,891 INFO L226 Difference]: Without dead ends: 1947 [2022-07-12 05:35:02,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:35:02,896 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 851 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:02,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1755 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:35:02,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2022-07-12 05:35:02,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1935. [2022-07-12 05:35:02,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1520 states have (on average 1.6032894736842105) internal successors, (2437), 1569 states have internal predecessors, (2437), 327 states have call successors, (327), 89 states have call predecessors, (327), 87 states have return successors, (366), 306 states have call predecessors, (366), 323 states have call successors, (366) [2022-07-12 05:35:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 3130 transitions. [2022-07-12 05:35:02,990 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 3130 transitions. Word has length 127 [2022-07-12 05:35:02,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:02,991 INFO L495 AbstractCegarLoop]: Abstraction has 1935 states and 3130 transitions. [2022-07-12 05:35:02,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 3130 transitions. [2022-07-12 05:35:02,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-12 05:35:02,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:02,994 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:03,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:03,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-12 05:35:03,213 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:03,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:03,214 INFO L85 PathProgramCache]: Analyzing trace with hash 418631155, now seen corresponding path program 1 times [2022-07-12 05:35:03,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:03,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435475364] [2022-07-12 05:35:03,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:03,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:35:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:35:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:35:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 05:35:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 05:35:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 05:35:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 05:35:03,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:03,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435475364] [2022-07-12 05:35:03,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435475364] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:03,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303919733] [2022-07-12 05:35:03,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:03,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:03,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:03,562 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:03,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 05:35:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:03,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:35:03,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-12 05:35:03,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:03,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303919733] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:03,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:03,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-12 05:35:03,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695058214] [2022-07-12 05:35:03,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:03,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:35:03,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:03,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:35:03,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:35:03,938 INFO L87 Difference]: Start difference. First operand 1935 states and 3130 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:04,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:04,400 INFO L93 Difference]: Finished difference Result 3826 states and 6349 transitions. [2022-07-12 05:35:04,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:35:04,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2022-07-12 05:35:04,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:04,410 INFO L225 Difference]: With dead ends: 3826 [2022-07-12 05:35:04,410 INFO L226 Difference]: Without dead ends: 1967 [2022-07-12 05:35:04,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:35:04,420 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 800 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:04,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2100 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 05:35:04,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2022-07-12 05:35:04,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1967. [2022-07-12 05:35:04,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1967 states, 1548 states have (on average 1.605297157622739) internal successors, (2485), 1597 states have internal predecessors, (2485), 327 states have call successors, (327), 93 states have call predecessors, (327), 91 states have return successors, (370), 306 states have call predecessors, (370), 323 states have call successors, (370) [2022-07-12 05:35:04,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 3182 transitions. [2022-07-12 05:35:04,530 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 3182 transitions. Word has length 128 [2022-07-12 05:35:04,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:04,530 INFO L495 AbstractCegarLoop]: Abstraction has 1967 states and 3182 transitions. [2022-07-12 05:35:04,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 3182 transitions. [2022-07-12 05:35:04,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-12 05:35:04,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:04,534 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:04,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:04,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:04,753 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:04,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:04,753 INFO L85 PathProgramCache]: Analyzing trace with hash -797832811, now seen corresponding path program 1 times [2022-07-12 05:35:04,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:04,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758006632] [2022-07-12 05:35:04,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:04,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:04,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:04,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:04,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:35:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:35:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:35:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 05:35:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 05:35:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 05:35:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,098 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 05:35:05,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:05,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758006632] [2022-07-12 05:35:05,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758006632] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:05,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813466112] [2022-07-12 05:35:05,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:05,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:05,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:05,100 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:05,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 05:35:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:05,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:35:05,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 05:35:05,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:05,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813466112] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:05,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:05,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-12 05:35:05,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126149465] [2022-07-12 05:35:05,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:05,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:35:05,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:05,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:35:05,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:35:05,451 INFO L87 Difference]: Start difference. First operand 1967 states and 3182 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:06,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:06,026 INFO L93 Difference]: Finished difference Result 3890 states and 6441 transitions. [2022-07-12 05:35:06,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:35:06,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2022-07-12 05:35:06,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:06,036 INFO L225 Difference]: With dead ends: 3890 [2022-07-12 05:35:06,037 INFO L226 Difference]: Without dead ends: 1999 [2022-07-12 05:35:06,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:35:06,046 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 794 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:06,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 2100 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 05:35:06,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2022-07-12 05:35:06,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1999. [2022-07-12 05:35:06,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1576 states have (on average 1.607233502538071) internal successors, (2533), 1625 states have internal predecessors, (2533), 327 states have call successors, (327), 97 states have call predecessors, (327), 95 states have return successors, (374), 306 states have call predecessors, (374), 323 states have call successors, (374) [2022-07-12 05:35:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 3234 transitions. [2022-07-12 05:35:06,166 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 3234 transitions. Word has length 131 [2022-07-12 05:35:06,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:06,166 INFO L495 AbstractCegarLoop]: Abstraction has 1999 states and 3234 transitions. [2022-07-12 05:35:06,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 3234 transitions. [2022-07-12 05:35:06,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 05:35:06,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:06,170 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:06,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:06,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:06,393 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:06,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1288536751, now seen corresponding path program 1 times [2022-07-12 05:35:06,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:06,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144341174] [2022-07-12 05:35:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:06,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:35:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 05:35:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:35:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 05:35:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:35:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 05:35:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,772 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-12 05:35:06,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:06,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144341174] [2022-07-12 05:35:06,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144341174] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:06,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658490432] [2022-07-12 05:35:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:06,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:06,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:06,774 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:06,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 05:35:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:06,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:35:06,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-12 05:35:07,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:07,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658490432] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:07,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:07,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-12 05:35:07,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761353980] [2022-07-12 05:35:07,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:07,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:35:07,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:07,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:35:07,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:35:07,111 INFO L87 Difference]: Start difference. First operand 1999 states and 3234 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:07,549 INFO L93 Difference]: Finished difference Result 3954 states and 6533 transitions. [2022-07-12 05:35:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:35:07,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2022-07-12 05:35:07,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:07,559 INFO L225 Difference]: With dead ends: 3954 [2022-07-12 05:35:07,559 INFO L226 Difference]: Without dead ends: 2031 [2022-07-12 05:35:07,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:35:07,568 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 780 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:07,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 2100 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 05:35:07,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2022-07-12 05:35:07,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2031. [2022-07-12 05:35:07,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 1604 states have (on average 1.6091022443890275) internal successors, (2581), 1653 states have internal predecessors, (2581), 327 states have call successors, (327), 101 states have call predecessors, (327), 99 states have return successors, (378), 306 states have call predecessors, (378), 323 states have call successors, (378) [2022-07-12 05:35:07,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 3286 transitions. [2022-07-12 05:35:07,662 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 3286 transitions. Word has length 134 [2022-07-12 05:35:07,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:07,662 INFO L495 AbstractCegarLoop]: Abstraction has 2031 states and 3286 transitions. [2022-07-12 05:35:07,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 3286 transitions. [2022-07-12 05:35:07,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-12 05:35:07,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:07,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:07,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:07,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:07,871 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:07,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:07,872 INFO L85 PathProgramCache]: Analyzing trace with hash 384424905, now seen corresponding path program 1 times [2022-07-12 05:35:07,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:07,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793437427] [2022-07-12 05:35:07,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:07,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:07,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 05:35:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 05:35:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:35:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 05:35:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 05:35:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 05:35:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 05:35:08,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:08,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793437427] [2022-07-12 05:35:08,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793437427] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:08,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673870044] [2022-07-12 05:35:08,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:08,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:08,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:08,275 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:08,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 05:35:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:08,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:35:08,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 05:35:08,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:08,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673870044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:08,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:08,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-12 05:35:08,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419867511] [2022-07-12 05:35:08,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:08,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:35:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:08,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:35:08,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:35:08,594 INFO L87 Difference]: Start difference. First operand 2031 states and 3286 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:09,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:09,028 INFO L93 Difference]: Finished difference Result 4018 states and 6625 transitions. [2022-07-12 05:35:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:35:09,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2022-07-12 05:35:09,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:09,038 INFO L225 Difference]: With dead ends: 4018 [2022-07-12 05:35:09,038 INFO L226 Difference]: Without dead ends: 2063 [2022-07-12 05:35:09,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:35:09,045 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 776 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:09,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2100 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 05:35:09,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2022-07-12 05:35:09,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 2063. [2022-07-12 05:35:09,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2063 states, 1632 states have (on average 1.610906862745098) internal successors, (2629), 1681 states have internal predecessors, (2629), 327 states have call successors, (327), 105 states have call predecessors, (327), 103 states have return successors, (382), 306 states have call predecessors, (382), 323 states have call successors, (382) [2022-07-12 05:35:09,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2063 states to 2063 states and 3338 transitions. [2022-07-12 05:35:09,150 INFO L78 Accepts]: Start accepts. Automaton has 2063 states and 3338 transitions. Word has length 137 [2022-07-12 05:35:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:09,150 INFO L495 AbstractCegarLoop]: Abstraction has 2063 states and 3338 transitions. [2022-07-12 05:35:09,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 05:35:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2063 states and 3338 transitions. [2022-07-12 05:35:09,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-12 05:35:09,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:09,153 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:09,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:09,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-12 05:35:09,371 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:09,372 INFO L85 PathProgramCache]: Analyzing trace with hash -509795876, now seen corresponding path program 1 times [2022-07-12 05:35:09,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:09,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233947597] [2022-07-12 05:35:09,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:09,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:35:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:35:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:35:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:35:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 05:35:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 05:35:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-12 05:35:09,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:09,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233947597] [2022-07-12 05:35:09,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233947597] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:09,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379301010] [2022-07-12 05:35:09,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:09,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:09,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:09,665 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:09,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 05:35:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:09,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 05:35:09,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:09,930 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-12 05:35:09,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:09,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379301010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:09,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:09,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2022-07-12 05:35:09,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644292374] [2022-07-12 05:35:09,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:09,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:09,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:09,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:09,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:35:09,932 INFO L87 Difference]: Start difference. First operand 2063 states and 3338 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:35:10,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:10,493 INFO L93 Difference]: Finished difference Result 5386 states and 8718 transitions. [2022-07-12 05:35:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:35:10,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-07-12 05:35:10,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:10,514 INFO L225 Difference]: With dead ends: 5386 [2022-07-12 05:35:10,514 INFO L226 Difference]: Without dead ends: 3399 [2022-07-12 05:35:10,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:35:10,523 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 833 mSDsluCounter, 3675 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:10,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 4831 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 05:35:10,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3399 states. [2022-07-12 05:35:10,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3399 to 3393. [2022-07-12 05:35:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3393 states, 2680 states have (on average 1.5727611940298507) internal successors, (4215), 2733 states have internal predecessors, (4215), 525 states have call successors, (525), 183 states have call predecessors, (525), 187 states have return successors, (688), 508 states have call predecessors, (688), 517 states have call successors, (688) [2022-07-12 05:35:10,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 5428 transitions. [2022-07-12 05:35:10,714 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 5428 transitions. Word has length 139 [2022-07-12 05:35:10,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:10,715 INFO L495 AbstractCegarLoop]: Abstraction has 3393 states and 5428 transitions. [2022-07-12 05:35:10,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:35:10,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 5428 transitions. [2022-07-12 05:35:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 05:35:10,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:10,718 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:10,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:10,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:10,931 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:10,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:10,932 INFO L85 PathProgramCache]: Analyzing trace with hash -560477783, now seen corresponding path program 1 times [2022-07-12 05:35:10,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:10,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817301755] [2022-07-12 05:35:10,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:10,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:35:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:35:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 05:35:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 05:35:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 05:35:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-12 05:35:11,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:11,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817301755] [2022-07-12 05:35:11,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817301755] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:11,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732320858] [2022-07-12 05:35:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:11,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:11,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:11,376 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:11,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 05:35:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:11,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 05:35:11,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:35:11,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:11,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732320858] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:11,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:11,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 20 [2022-07-12 05:35:11,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141132174] [2022-07-12 05:35:11,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:11,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:11,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:11,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:11,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:35:11,745 INFO L87 Difference]: Start difference. First operand 3393 states and 5428 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-12 05:35:13,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:13,173 INFO L93 Difference]: Finished difference Result 6862 states and 11033 transitions. [2022-07-12 05:35:13,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:35:13,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 140 [2022-07-12 05:35:13,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:13,191 INFO L225 Difference]: With dead ends: 6862 [2022-07-12 05:35:13,191 INFO L226 Difference]: Without dead ends: 3550 [2022-07-12 05:35:13,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:35:13,203 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 1440 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1799 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:13,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 1716 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1799 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 05:35:13,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2022-07-12 05:35:13,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3280. [2022-07-12 05:35:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3280 states, 2494 states have (on average 1.5417000801924619) internal successors, (3845), 2585 states have internal predecessors, (3845), 606 states have call successors, (606), 169 states have call predecessors, (606), 179 states have return successors, (746), 577 states have call predecessors, (746), 598 states have call successors, (746) [2022-07-12 05:35:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3280 states to 3280 states and 5197 transitions. [2022-07-12 05:35:13,391 INFO L78 Accepts]: Start accepts. Automaton has 3280 states and 5197 transitions. Word has length 140 [2022-07-12 05:35:13,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:13,391 INFO L495 AbstractCegarLoop]: Abstraction has 3280 states and 5197 transitions. [2022-07-12 05:35:13,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-12 05:35:13,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3280 states and 5197 transitions. [2022-07-12 05:35:13,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 05:35:13,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:13,395 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:13,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:13,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:13,613 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:13,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:13,614 INFO L85 PathProgramCache]: Analyzing trace with hash 171489643, now seen corresponding path program 1 times [2022-07-12 05:35:13,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:13,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790608416] [2022-07-12 05:35:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:13,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:35:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:35:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 05:35:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 05:35:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 05:35:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-12 05:35:13,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:13,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790608416] [2022-07-12 05:35:13,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790608416] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:13,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331418718] [2022-07-12 05:35:13,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:13,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:13,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:13,974 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:13,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 05:35:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:14,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-12 05:35:14,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 05:35:14,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:14,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331418718] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:14,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:14,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 22 [2022-07-12 05:35:14,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376328928] [2022-07-12 05:35:14,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:14,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 05:35:14,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:14,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 05:35:14,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-07-12 05:35:14,379 INFO L87 Difference]: Start difference. First operand 3280 states and 5197 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-07-12 05:35:17,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:17,218 INFO L93 Difference]: Finished difference Result 7603 states and 12156 transitions. [2022-07-12 05:35:17,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 05:35:17,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 140 [2022-07-12 05:35:17,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:17,238 INFO L225 Difference]: With dead ends: 7603 [2022-07-12 05:35:17,238 INFO L226 Difference]: Without dead ends: 4401 [2022-07-12 05:35:17,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=981, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 05:35:17,251 INFO L413 NwaCegarLoop]: 1116 mSDtfsCounter, 2907 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 4738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 4080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:17,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 2998 Invalid, 4738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 4080 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 05:35:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4401 states. [2022-07-12 05:35:17,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4401 to 3806. [2022-07-12 05:35:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 2886 states have (on average 1.5443520443520444) internal successors, (4457), 2999 states have internal predecessors, (4457), 696 states have call successors, (696), 191 states have call predecessors, (696), 223 states have return successors, (891), 667 states have call predecessors, (891), 688 states have call successors, (891) [2022-07-12 05:35:17,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 6044 transitions. [2022-07-12 05:35:17,577 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 6044 transitions. Word has length 140 [2022-07-12 05:35:17,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:17,578 INFO L495 AbstractCegarLoop]: Abstraction has 3806 states and 6044 transitions. [2022-07-12 05:35:17,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-07-12 05:35:17,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 6044 transitions. [2022-07-12 05:35:17,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 05:35:17,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:17,582 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:17,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-07-12 05:35:17,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-12 05:35:17,807 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:17,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:17,808 INFO L85 PathProgramCache]: Analyzing trace with hash -16455701, now seen corresponding path program 1 times [2022-07-12 05:35:17,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:17,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742560472] [2022-07-12 05:35:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:17,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:17,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:35:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:35:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 05:35:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 05:35:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 05:35:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-12 05:35:18,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:18,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742560472] [2022-07-12 05:35:18,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742560472] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:18,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844265827] [2022-07-12 05:35:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:18,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:18,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:18,133 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:18,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-12 05:35:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:18,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-12 05:35:18,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 05:35:18,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:18,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844265827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:18,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:18,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2022-07-12 05:35:18,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773080646] [2022-07-12 05:35:18,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:18,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:35:18,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:18,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:35:18,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:35:18,478 INFO L87 Difference]: Start difference. First operand 3806 states and 6044 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-12 05:35:22,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:22,092 INFO L93 Difference]: Finished difference Result 10284 states and 16699 transitions. [2022-07-12 05:35:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 05:35:22,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2022-07-12 05:35:22,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:22,115 INFO L225 Difference]: With dead ends: 10284 [2022-07-12 05:35:22,116 INFO L226 Difference]: Without dead ends: 6556 [2022-07-12 05:35:22,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2022-07-12 05:35:22,127 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 2606 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 5339 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2705 SdHoareTripleChecker+Valid, 3392 SdHoareTripleChecker+Invalid, 6126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 5339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:22,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2705 Valid, 3392 Invalid, 6126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 5339 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 05:35:22,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6556 states. [2022-07-12 05:35:22,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6556 to 5934. [2022-07-12 05:35:22,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5934 states, 4485 states have (on average 1.5500557413600893) internal successors, (6952), 4671 states have internal predecessors, (6952), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 364 states have return successors, (1508), 1048 states have call predecessors, (1508), 1076 states have call successors, (1508) [2022-07-12 05:35:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5934 states to 5934 states and 9544 transitions. [2022-07-12 05:35:22,503 INFO L78 Accepts]: Start accepts. Automaton has 5934 states and 9544 transitions. Word has length 142 [2022-07-12 05:35:22,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:22,504 INFO L495 AbstractCegarLoop]: Abstraction has 5934 states and 9544 transitions. [2022-07-12 05:35:22,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-12 05:35:22,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5934 states and 9544 transitions. [2022-07-12 05:35:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-12 05:35:22,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:22,507 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:22,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:22,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-12 05:35:22,725 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:22,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:22,725 INFO L85 PathProgramCache]: Analyzing trace with hash -836245353, now seen corresponding path program 1 times [2022-07-12 05:35:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:22,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863899795] [2022-07-12 05:35:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:22,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:35:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:22,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:35:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:23,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:35:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:23,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 05:35:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:23,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 05:35:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 05:35:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-12 05:35:23,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:23,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863899795] [2022-07-12 05:35:23,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863899795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:23,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:23,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:35:23,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174503375] [2022-07-12 05:35:23,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:23,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:35:23,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:23,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:35:23,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:35:23,015 INFO L87 Difference]: Start difference. First operand 5934 states and 9544 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-12 05:35:38,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:38,046 INFO L93 Difference]: Finished difference Result 27614 states and 46338 transitions. [2022-07-12 05:35:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-12 05:35:38,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 147 [2022-07-12 05:35:38,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:38,137 INFO L225 Difference]: With dead ends: 27614 [2022-07-12 05:35:38,138 INFO L226 Difference]: Without dead ends: 21762 [2022-07-12 05:35:38,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2022-07-12 05:35:38,167 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 8744 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 5517 mSolverCounterSat, 5270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8804 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 10787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5270 IncrementalHoareTripleChecker+Valid, 5517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:38,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8804 Valid, 2722 Invalid, 10787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5270 Valid, 5517 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-07-12 05:35:38,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21762 states. [2022-07-12 05:35:38,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21762 to 5978. [2022-07-12 05:35:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 4517 states have (on average 1.547044498560992) internal successors, (6988), 4699 states have internal predecessors, (6988), 1096 states have call successors, (1096), 291 states have call predecessors, (1096), 364 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-07-12 05:35:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 9578 transitions. [2022-07-12 05:35:39,041 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 9578 transitions. Word has length 147 [2022-07-12 05:35:39,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:39,041 INFO L495 AbstractCegarLoop]: Abstraction has 5978 states and 9578 transitions. [2022-07-12 05:35:39,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-12 05:35:39,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 9578 transitions. [2022-07-12 05:35:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-12 05:35:39,044 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:39,044 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:39,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 05:35:39,045 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:39,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:39,045 INFO L85 PathProgramCache]: Analyzing trace with hash -176713831, now seen corresponding path program 1 times [2022-07-12 05:35:39,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:39,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103452155] [2022-07-12 05:35:39,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:39,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:35:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:35:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:35:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 05:35:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 05:35:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 05:35:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-12 05:35:39,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:39,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103452155] [2022-07-12 05:35:39,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103452155] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:39,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443436655] [2022-07-12 05:35:39,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:39,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:39,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:39,406 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:39,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-12 05:35:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:39,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 05:35:39,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 05:35:39,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:39,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443436655] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:39,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:39,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-12 05:35:39,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960964519] [2022-07-12 05:35:39,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:39,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:35:39,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:39,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:35:39,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:35:39,757 INFO L87 Difference]: Start difference. First operand 5978 states and 9578 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 05:35:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:40,525 INFO L93 Difference]: Finished difference Result 6115 states and 9862 transitions. [2022-07-12 05:35:40,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:35:40,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2022-07-12 05:35:40,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:40,551 INFO L225 Difference]: With dead ends: 6115 [2022-07-12 05:35:40,551 INFO L226 Difference]: Without dead ends: 6113 [2022-07-12 05:35:40,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:35:40,556 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 360 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 3876 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:40,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 3876 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 05:35:40,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6113 states. [2022-07-12 05:35:41,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6113 to 5978. [2022-07-12 05:35:41,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 4517 states have (on average 1.5404029222935576) internal successors, (6958), 4699 states have internal predecessors, (6958), 1096 states have call successors, (1096), 291 states have call predecessors, (1096), 364 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-07-12 05:35:41,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 9548 transitions. [2022-07-12 05:35:41,091 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 9548 transitions. Word has length 147 [2022-07-12 05:35:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:41,092 INFO L495 AbstractCegarLoop]: Abstraction has 5978 states and 9548 transitions. [2022-07-12 05:35:41,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 05:35:41,092 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 9548 transitions. [2022-07-12 05:35:41,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-12 05:35:41,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:41,111 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:41,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:41,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-12 05:35:41,327 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:41,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:41,328 INFO L85 PathProgramCache]: Analyzing trace with hash -439600524, now seen corresponding path program 1 times [2022-07-12 05:35:41,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:41,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068747598] [2022-07-12 05:35:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:41,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:35:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:35:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:35:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:35:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:35:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:35:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 05:35:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 05:35:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 05:35:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:41,706 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-12 05:35:41,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:41,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068747598] [2022-07-12 05:35:41,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068747598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:41,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:35:41,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:35:41,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512208390] [2022-07-12 05:35:41,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:41,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:35:41,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:41,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:35:41,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:35:41,709 INFO L87 Difference]: Start difference. First operand 5978 states and 9548 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 05:35:53,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:53,293 INFO L93 Difference]: Finished difference Result 23637 states and 39836 transitions. [2022-07-12 05:35:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 05:35:53,294 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 170 [2022-07-12 05:35:53,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:53,380 INFO L225 Difference]: With dead ends: 23637 [2022-07-12 05:35:53,380 INFO L226 Difference]: Without dead ends: 17737 [2022-07-12 05:35:53,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2022-07-12 05:35:53,429 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 5157 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 4766 mSolverCounterSat, 2402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5333 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 7168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2402 IncrementalHoareTripleChecker+Valid, 4766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:53,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5333 Valid, 2413 Invalid, 7168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2402 Valid, 4766 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-07-12 05:35:53,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17737 states. [2022-07-12 05:35:54,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17737 to 6002. [2022-07-12 05:35:54,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6002 states, 4541 states have (on average 1.5375467958599427) internal successors, (6982), 4723 states have internal predecessors, (6982), 1096 states have call successors, (1096), 291 states have call predecessors, (1096), 364 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-07-12 05:35:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6002 states to 6002 states and 9572 transitions. [2022-07-12 05:35:54,403 INFO L78 Accepts]: Start accepts. Automaton has 6002 states and 9572 transitions. Word has length 170 [2022-07-12 05:35:54,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:54,404 INFO L495 AbstractCegarLoop]: Abstraction has 6002 states and 9572 transitions. [2022-07-12 05:35:54,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 05:35:54,404 INFO L276 IsEmpty]: Start isEmpty. Operand 6002 states and 9572 transitions. [2022-07-12 05:35:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-12 05:35:54,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:54,408 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:54,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 05:35:54,408 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:54,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash 403070233, now seen corresponding path program 1 times [2022-07-12 05:35:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:54,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501544487] [2022-07-12 05:35:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:54,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:35:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:35:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 05:35:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:35:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 05:35:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 05:35:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:35:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 05:35:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 05:35:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 05:35:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-07-12 05:35:54,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:54,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501544487] [2022-07-12 05:35:54,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501544487] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:54,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959929096] [2022-07-12 05:35:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:54,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:54,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:54,788 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:54,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-12 05:35:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:55,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:35:55,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:55,041 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-12 05:35:55,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:55,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959929096] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:55,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:55,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-12 05:35:55,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956740107] [2022-07-12 05:35:55,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:55,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:35:55,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:55,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:35:55,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:35:55,043 INFO L87 Difference]: Start difference. First operand 6002 states and 9572 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 05:35:55,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:55,974 INFO L93 Difference]: Finished difference Result 12160 states and 19614 transitions. [2022-07-12 05:35:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:35:55,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 176 [2022-07-12 05:35:55,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:56,002 INFO L225 Difference]: With dead ends: 12160 [2022-07-12 05:35:56,002 INFO L226 Difference]: Without dead ends: 6236 [2022-07-12 05:35:56,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:35:56,025 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 213 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:56,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2325 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:35:56,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6236 states. [2022-07-12 05:35:56,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6236 to 6236. [2022-07-12 05:35:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6236 states, 4769 states have (on average 1.5558817362130426) internal successors, (7420), 4951 states have internal predecessors, (7420), 1096 states have call successors, (1096), 297 states have call predecessors, (1096), 370 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-07-12 05:35:56,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6236 states to 6236 states and 10010 transitions. [2022-07-12 05:35:56,767 INFO L78 Accepts]: Start accepts. Automaton has 6236 states and 10010 transitions. Word has length 176 [2022-07-12 05:35:56,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:56,769 INFO L495 AbstractCegarLoop]: Abstraction has 6236 states and 10010 transitions. [2022-07-12 05:35:56,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 05:35:56,769 INFO L276 IsEmpty]: Start isEmpty. Operand 6236 states and 10010 transitions. [2022-07-12 05:35:56,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-12 05:35:56,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:56,773 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:56,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:56,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:56,991 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:56,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:56,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1112879591, now seen corresponding path program 1 times [2022-07-12 05:35:56,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:56,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288543683] [2022-07-12 05:35:56,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:56,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:35:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:35:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:35:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:35:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 05:35:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 05:35:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 05:35:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 05:35:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 05:35:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-12 05:35:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,263 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-12 05:35:57,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:57,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288543683] [2022-07-12 05:35:57,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288543683] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:57,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459775254] [2022-07-12 05:35:57,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:57,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:57,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:57,265 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:57,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-12 05:35:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:57,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:35:57,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-12 05:35:57,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:57,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459775254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:57,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:57,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-12 05:35:57,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632885969] [2022-07-12 05:35:57,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:57,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:35:57,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:57,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:35:57,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:35:57,494 INFO L87 Difference]: Start difference. First operand 6236 states and 10010 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 05:35:58,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:35:58,243 INFO L93 Difference]: Finished difference Result 12628 states and 20478 transitions. [2022-07-12 05:35:58,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:35:58,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 181 [2022-07-12 05:35:58,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:35:58,272 INFO L225 Difference]: With dead ends: 12628 [2022-07-12 05:35:58,272 INFO L226 Difference]: Without dead ends: 6470 [2022-07-12 05:35:58,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:35:58,295 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 211 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:35:58,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2325 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:35:58,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6470 states. [2022-07-12 05:35:58,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6470 to 6470. [2022-07-12 05:35:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6470 states, 4997 states have (on average 1.5725435261156695) internal successors, (7858), 5179 states have internal predecessors, (7858), 1096 states have call successors, (1096), 303 states have call predecessors, (1096), 376 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-07-12 05:35:59,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6470 states to 6470 states and 10448 transitions. [2022-07-12 05:35:59,007 INFO L78 Accepts]: Start accepts. Automaton has 6470 states and 10448 transitions. Word has length 181 [2022-07-12 05:35:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:35:59,008 INFO L495 AbstractCegarLoop]: Abstraction has 6470 states and 10448 transitions. [2022-07-12 05:35:59,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 05:35:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6470 states and 10448 transitions. [2022-07-12 05:35:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-12 05:35:59,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:35:59,012 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:35:59,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-12 05:35:59,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:59,227 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:35:59,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:35:59,228 INFO L85 PathProgramCache]: Analyzing trace with hash 431304393, now seen corresponding path program 1 times [2022-07-12 05:35:59,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:35:59,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302165330] [2022-07-12 05:35:59,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:59,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:35:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:35:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:35:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:35:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:35:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:35:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:35:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:35:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:35:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:35:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:35:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:35:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 05:35:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-12 05:35:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:35:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 05:35:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 05:35:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-12 05:35:59,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:35:59,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302165330] [2022-07-12 05:35:59,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302165330] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:35:59,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952648167] [2022-07-12 05:35:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:35:59,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:35:59,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:35:59,494 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:35:59,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-12 05:35:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:35:59,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:35:59,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:35:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:35:59,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:35:59,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952648167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:35:59,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:35:59,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-12 05:35:59,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034076927] [2022-07-12 05:35:59,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:35:59,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:35:59,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:35:59,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:35:59,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:35:59,757 INFO L87 Difference]: Start difference. First operand 6470 states and 10448 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 05:36:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:00,502 INFO L93 Difference]: Finished difference Result 13096 states and 21342 transitions. [2022-07-12 05:36:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:00,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 185 [2022-07-12 05:36:00,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:00,546 INFO L225 Difference]: With dead ends: 13096 [2022-07-12 05:36:00,546 INFO L226 Difference]: Without dead ends: 6704 [2022-07-12 05:36:00,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:36:00,572 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 209 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:00,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2325 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:36:00,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2022-07-12 05:36:01,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 6704. [2022-07-12 05:36:01,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6704 states, 5225 states have (on average 1.5877511961722488) internal successors, (8296), 5407 states have internal predecessors, (8296), 1096 states have call successors, (1096), 309 states have call predecessors, (1096), 382 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-07-12 05:36:01,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6704 states to 6704 states and 10886 transitions. [2022-07-12 05:36:01,329 INFO L78 Accepts]: Start accepts. Automaton has 6704 states and 10886 transitions. Word has length 185 [2022-07-12 05:36:01,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:01,330 INFO L495 AbstractCegarLoop]: Abstraction has 6704 states and 10886 transitions. [2022-07-12 05:36:01,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 05:36:01,330 INFO L276 IsEmpty]: Start isEmpty. Operand 6704 states and 10886 transitions. [2022-07-12 05:36:01,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-12 05:36:01,334 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:01,334 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:01,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-07-12 05:36:01,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-07-12 05:36:01,535 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:01,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:01,535 INFO L85 PathProgramCache]: Analyzing trace with hash -30036743, now seen corresponding path program 1 times [2022-07-12 05:36:01,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:01,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294521500] [2022-07-12 05:36:01,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:01,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:36:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 05:36:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 05:36:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 05:36:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-12 05:36:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-12 05:36:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-12 05:36:01,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:01,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294521500] [2022-07-12 05:36:01,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294521500] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:01,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625814320] [2022-07-12 05:36:01,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:01,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:01,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:01,813 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:01,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-12 05:36:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:02,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:36:02,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:02,044 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-12 05:36:02,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:02,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625814320] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:02,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:02,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-12 05:36:02,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813744589] [2022-07-12 05:36:02,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:02,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:36:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:02,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:36:02,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:36:02,046 INFO L87 Difference]: Start difference. First operand 6704 states and 10886 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 05:36:02,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:02,897 INFO L93 Difference]: Finished difference Result 13564 states and 22206 transitions. [2022-07-12 05:36:02,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:02,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 188 [2022-07-12 05:36:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:02,925 INFO L225 Difference]: With dead ends: 13564 [2022-07-12 05:36:02,925 INFO L226 Difference]: Without dead ends: 6938 [2022-07-12 05:36:02,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:36:02,946 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 207 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:02,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2325 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:36:02,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6938 states. [2022-07-12 05:36:03,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6938 to 6938. [2022-07-12 05:36:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6938 states, 5453 states have (on average 1.6016871446909957) internal successors, (8734), 5635 states have internal predecessors, (8734), 1096 states have call successors, (1096), 315 states have call predecessors, (1096), 388 states have return successors, (1494), 1060 states have call predecessors, (1494), 1088 states have call successors, (1494) [2022-07-12 05:36:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6938 states to 6938 states and 11324 transitions. [2022-07-12 05:36:03,707 INFO L78 Accepts]: Start accepts. Automaton has 6938 states and 11324 transitions. Word has length 188 [2022-07-12 05:36:03,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:03,707 INFO L495 AbstractCegarLoop]: Abstraction has 6938 states and 11324 transitions. [2022-07-12 05:36:03,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 05:36:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6938 states and 11324 transitions. [2022-07-12 05:36:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 05:36:03,712 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:03,712 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:03,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-07-12 05:36:03,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:03,913 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:03,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:03,914 INFO L85 PathProgramCache]: Analyzing trace with hash 665018633, now seen corresponding path program 1 times [2022-07-12 05:36:03,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:03,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950789273] [2022-07-12 05:36:03,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:03,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:03,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:36:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 05:36:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-12 05:36:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 05:36:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-12 05:36:04,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:04,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950789273] [2022-07-12 05:36:04,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950789273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:04,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:36:04,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:36:04,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723677095] [2022-07-12 05:36:04,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:04,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:36:04,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:04,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:36:04,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:36:04,201 INFO L87 Difference]: Start difference. First operand 6938 states and 11324 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-12 05:36:18,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:18,302 INFO L93 Difference]: Finished difference Result 25818 states and 44116 transitions. [2022-07-12 05:36:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 05:36:18,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 190 [2022-07-12 05:36:18,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:18,384 INFO L225 Difference]: With dead ends: 25818 [2022-07-12 05:36:18,385 INFO L226 Difference]: Without dead ends: 18862 [2022-07-12 05:36:18,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=134, Invalid=246, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:36:18,420 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 4083 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 5048 mSolverCounterSat, 1831 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4269 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 6879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1831 IncrementalHoareTripleChecker+Valid, 5048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:18,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4269 Valid, 2454 Invalid, 6879 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1831 Valid, 5048 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-07-12 05:36:18,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18862 states. [2022-07-12 05:36:19,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18862 to 14472. [2022-07-12 05:36:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14472 states, 11260 states have (on average 1.569360568383659) internal successors, (17671), 11667 states have internal predecessors, (17671), 2398 states have call successors, (2398), 615 states have call predecessors, (2398), 813 states have return successors, (3308), 2365 states have call predecessors, (3308), 2382 states have call successors, (3308) [2022-07-12 05:36:20,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14472 states to 14472 states and 23377 transitions. [2022-07-12 05:36:20,068 INFO L78 Accepts]: Start accepts. Automaton has 14472 states and 23377 transitions. Word has length 190 [2022-07-12 05:36:20,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:20,069 INFO L495 AbstractCegarLoop]: Abstraction has 14472 states and 23377 transitions. [2022-07-12 05:36:20,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-12 05:36:20,069 INFO L276 IsEmpty]: Start isEmpty. Operand 14472 states and 23377 transitions. [2022-07-12 05:36:20,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 05:36:20,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:20,073 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:20,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-12 05:36:20,073 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:20,073 INFO L85 PathProgramCache]: Analyzing trace with hash 869994168, now seen corresponding path program 1 times [2022-07-12 05:36:20,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:20,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236556606] [2022-07-12 05:36:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:20,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:36:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 05:36:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-12 05:36:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 05:36:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-07-12 05:36:20,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:20,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236556606] [2022-07-12 05:36:20,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236556606] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:20,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39639188] [2022-07-12 05:36:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:20,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:20,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:20,490 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:20,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-12 05:36:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:20,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 37 conjunts are in the unsatisfiable core [2022-07-12 05:36:20,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-12 05:36:20,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:20,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39639188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:20,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:20,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2022-07-12 05:36:20,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750325734] [2022-07-12 05:36:20,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:20,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:36:20,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:20,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:36:20,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:36:20,900 INFO L87 Difference]: Start difference. First operand 14472 states and 23377 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 7 states have internal predecessors, (127), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-12 05:36:26,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:26,576 INFO L93 Difference]: Finished difference Result 45423 states and 74759 transitions. [2022-07-12 05:36:26,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 05:36:26,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 7 states have internal predecessors, (127), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 190 [2022-07-12 05:36:26,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:26,662 INFO L225 Difference]: With dead ends: 45423 [2022-07-12 05:36:26,663 INFO L226 Difference]: Without dead ends: 19304 [2022-07-12 05:36:26,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-07-12 05:36:26,736 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 1894 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 4070 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 4579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 4070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:26,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 2951 Invalid, 4579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 4070 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 05:36:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19304 states. [2022-07-12 05:36:28,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19304 to 18777. [2022-07-12 05:36:28,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18777 states, 14546 states have (on average 1.567509968376186) internal successors, (22801), 15126 states have internal predecessors, (22801), 3131 states have call successors, (3131), 801 states have call predecessors, (3131), 1099 states have return successors, (4378), 3095 states have call predecessors, (4378), 3115 states have call successors, (4378) [2022-07-12 05:36:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18777 states to 18777 states and 30310 transitions. [2022-07-12 05:36:28,920 INFO L78 Accepts]: Start accepts. Automaton has 18777 states and 30310 transitions. Word has length 190 [2022-07-12 05:36:28,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:28,921 INFO L495 AbstractCegarLoop]: Abstraction has 18777 states and 30310 transitions. [2022-07-12 05:36:28,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 7 states have internal predecessors, (127), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-12 05:36:28,921 INFO L276 IsEmpty]: Start isEmpty. Operand 18777 states and 30310 transitions. [2022-07-12 05:36:28,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 05:36:28,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:28,930 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:28,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:29,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:29,144 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:29,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:29,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1240857912, now seen corresponding path program 1 times [2022-07-12 05:36:29,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:29,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428041895] [2022-07-12 05:36:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:29,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:36:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:36:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 05:36:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-12 05:36:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 05:36:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:29,390 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-12 05:36:29,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:29,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428041895] [2022-07-12 05:36:29,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428041895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:29,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:36:29,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:36:29,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954323138] [2022-07-12 05:36:29,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:29,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:36:29,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:29,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:36:29,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:36:29,392 INFO L87 Difference]: Start difference. First operand 18777 states and 30310 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 05:36:36,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:36,275 INFO L93 Difference]: Finished difference Result 42229 states and 69822 transitions. [2022-07-12 05:36:36,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 05:36:36,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 190 [2022-07-12 05:36:36,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:36,371 INFO L225 Difference]: With dead ends: 42229 [2022-07-12 05:36:36,372 INFO L226 Difference]: Without dead ends: 23402 [2022-07-12 05:36:36,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:36:36,424 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 1330 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:36,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 1876 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-12 05:36:36,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23402 states. [2022-07-12 05:36:38,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23402 to 18799. [2022-07-12 05:36:38,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18799 states, 14568 states have (on average 1.5637012630422844) internal successors, (22780), 15148 states have internal predecessors, (22780), 3131 states have call successors, (3131), 801 states have call predecessors, (3131), 1099 states have return successors, (4378), 3095 states have call predecessors, (4378), 3115 states have call successors, (4378) [2022-07-12 05:36:38,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18799 states to 18799 states and 30289 transitions. [2022-07-12 05:36:38,896 INFO L78 Accepts]: Start accepts. Automaton has 18799 states and 30289 transitions. Word has length 190 [2022-07-12 05:36:38,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:38,896 INFO L495 AbstractCegarLoop]: Abstraction has 18799 states and 30289 transitions. [2022-07-12 05:36:38,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 05:36:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand 18799 states and 30289 transitions. [2022-07-12 05:36:38,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-12 05:36:38,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:38,906 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:38,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-12 05:36:38,906 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:38,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:38,906 INFO L85 PathProgramCache]: Analyzing trace with hash 400345276, now seen corresponding path program 1 times [2022-07-12 05:36:38,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:38,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404570212] [2022-07-12 05:36:38,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:38,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:38,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:38,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:36:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 05:36:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-12 05:36:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 05:36:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 05:36:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-07-12 05:36:39,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:39,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404570212] [2022-07-12 05:36:39,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404570212] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:39,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888165549] [2022-07-12 05:36:39,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:39,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:39,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:39,222 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:39,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-12 05:36:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:39,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 05:36:39,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:39,480 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-12 05:36:39,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:39,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888165549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:39,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:39,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 19 [2022-07-12 05:36:39,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815701875] [2022-07-12 05:36:39,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:39,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:36:39,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:39,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:36:39,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:36:39,482 INFO L87 Difference]: Start difference. First operand 18799 states and 30289 transitions. Second operand has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 05:36:40,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:40,882 INFO L93 Difference]: Finished difference Result 29758 states and 47932 transitions. [2022-07-12 05:36:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:36:40,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 196 [2022-07-12 05:36:40,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:40,924 INFO L225 Difference]: With dead ends: 29758 [2022-07-12 05:36:40,924 INFO L226 Difference]: Without dead ends: 10674 [2022-07-12 05:36:40,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:36:40,970 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 50 mSDsluCounter, 4116 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 4955 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:40,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 4955 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:36:40,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2022-07-12 05:36:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 10674. [2022-07-12 05:36:42,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10674 states, 8399 states have (on average 1.5774496963924276) internal successors, (13249), 8729 states have internal predecessors, (13249), 1644 states have call successors, (1644), 483 states have call predecessors, (1644), 630 states have return successors, (2209), 1584 states have call predecessors, (2209), 1636 states have call successors, (2209) [2022-07-12 05:36:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10674 states to 10674 states and 17102 transitions. [2022-07-12 05:36:42,174 INFO L78 Accepts]: Start accepts. Automaton has 10674 states and 17102 transitions. Word has length 196 [2022-07-12 05:36:42,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:42,175 INFO L495 AbstractCegarLoop]: Abstraction has 10674 states and 17102 transitions. [2022-07-12 05:36:42,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 05:36:42,175 INFO L276 IsEmpty]: Start isEmpty. Operand 10674 states and 17102 transitions. [2022-07-12 05:36:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-07-12 05:36:42,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:42,184 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:42,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-07-12 05:36:42,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-07-12 05:36:42,396 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:42,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash -391287159, now seen corresponding path program 1 times [2022-07-12 05:36:42,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:42,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509342839] [2022-07-12 05:36:42,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:42,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:36:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:36:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:36:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 05:36:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:36:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:36:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 05:36:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:36:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:42,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:36:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:36:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:36:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:36:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:36:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:36:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 05:36:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:36:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:36:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 05:36:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-07-12 05:36:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-07-12 05:36:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-07-12 05:36:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-07-12 05:36:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-07-12 05:36:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 88 proven. 135 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-07-12 05:36:43,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:43,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509342839] [2022-07-12 05:36:43,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509342839] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:43,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479095561] [2022-07-12 05:36:43,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:43,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:43,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:43,043 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:43,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-12 05:36:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:43,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 4057 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:36:43,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 690 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-07-12 05:36:43,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:43,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479095561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:43,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:43,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-12 05:36:43,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875613588] [2022-07-12 05:36:43,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:43,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:36:43,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:43,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:36:43,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:36:43,608 INFO L87 Difference]: Start difference. First operand 10674 states and 17102 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-12 05:36:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:44,989 INFO L93 Difference]: Finished difference Result 21366 states and 34549 transitions. [2022-07-12 05:36:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:44,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 548 [2022-07-12 05:36:44,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:45,033 INFO L225 Difference]: With dead ends: 21366 [2022-07-12 05:36:45,033 INFO L226 Difference]: Without dead ends: 10764 [2022-07-12 05:36:45,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 667 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:36:45,064 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 38 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:45,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2411 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:36:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10764 states. [2022-07-12 05:36:46,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10764 to 10764. [2022-07-12 05:36:46,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10764 states, 8479 states have (on average 1.5790777214294138) internal successors, (13389), 8809 states have internal predecessors, (13389), 1644 states have call successors, (1644), 493 states have call predecessors, (1644), 640 states have return successors, (2209), 1584 states have call predecessors, (2209), 1636 states have call successors, (2209) [2022-07-12 05:36:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10764 states to 10764 states and 17242 transitions. [2022-07-12 05:36:46,270 INFO L78 Accepts]: Start accepts. Automaton has 10764 states and 17242 transitions. Word has length 548 [2022-07-12 05:36:46,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:46,270 INFO L495 AbstractCegarLoop]: Abstraction has 10764 states and 17242 transitions. [2022-07-12 05:36:46,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-12 05:36:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 10764 states and 17242 transitions. [2022-07-12 05:36:46,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-07-12 05:36:46,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:46,280 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:46,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:46,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-07-12 05:36:46,495 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:46,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:46,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1120909993, now seen corresponding path program 1 times [2022-07-12 05:36:46,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:46,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713749448] [2022-07-12 05:36:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:46,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:36:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:36:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:36:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 05:36:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:36:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:36:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:46,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 05:36:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:36:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 05:36:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:36:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:36:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:36:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:36:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:36:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:36:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:36:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 05:36:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:36:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 05:36:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-07-12 05:36:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-07-12 05:36:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-07-12 05:36:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-07-12 05:36:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-12 05:36:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 90 proven. 134 refuted. 0 times theorem prover too weak. 1253 trivial. 0 not checked. [2022-07-12 05:36:47,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:47,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713749448] [2022-07-12 05:36:47,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713749448] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:47,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422357594] [2022-07-12 05:36:47,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:47,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:47,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:47,138 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:47,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-12 05:36:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:47,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 4058 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:36:47,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2022-07-12 05:36:47,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:47,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422357594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:47,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:47,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-12 05:36:47,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006355622] [2022-07-12 05:36:47,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:47,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:36:47,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:47,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:36:47,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:36:47,613 INFO L87 Difference]: Start difference. First operand 10764 states and 17242 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-12 05:36:48,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:48,813 INFO L93 Difference]: Finished difference Result 21546 states and 34789 transitions. [2022-07-12 05:36:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:36:48,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 549 [2022-07-12 05:36:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:48,865 INFO L225 Difference]: With dead ends: 21546 [2022-07-12 05:36:48,865 INFO L226 Difference]: Without dead ends: 10854 [2022-07-12 05:36:48,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 667 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:36:48,899 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 36 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:48,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2411 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:36:48,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-07-12 05:36:50,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 10854. [2022-07-12 05:36:50,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10854 states, 8559 states have (on average 1.5806753125365112) internal successors, (13529), 8889 states have internal predecessors, (13529), 1644 states have call successors, (1644), 503 states have call predecessors, (1644), 650 states have return successors, (2209), 1584 states have call predecessors, (2209), 1636 states have call successors, (2209) [2022-07-12 05:36:50,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10854 states to 10854 states and 17382 transitions. [2022-07-12 05:36:50,130 INFO L78 Accepts]: Start accepts. Automaton has 10854 states and 17382 transitions. Word has length 549 [2022-07-12 05:36:50,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:36:50,130 INFO L495 AbstractCegarLoop]: Abstraction has 10854 states and 17382 transitions. [2022-07-12 05:36:50,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-12 05:36:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand 10854 states and 17382 transitions. [2022-07-12 05:36:50,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-07-12 05:36:50,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:36:50,139 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:36:50,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-12 05:36:50,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-07-12 05:36:50,339 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:36:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:36:50,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1507367237, now seen corresponding path program 1 times [2022-07-12 05:36:50,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:36:50,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270977652] [2022-07-12 05:36:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:50,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:36:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:36:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:36:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:36:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:36:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 05:36:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:36:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:36:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:36:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:36:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:36:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:36:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:36:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:36:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 05:36:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:36:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:36:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 05:36:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:36:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:36:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:36:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:36:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:36:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:36:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:36:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:36:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 05:36:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 05:36:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2022-07-12 05:36:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:36:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-07-12 05:36:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-07-12 05:36:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:36:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-07-12 05:36:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-07-12 05:36:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:50,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 120 proven. 136 refuted. 0 times theorem prover too weak. 1221 trivial. 0 not checked. [2022-07-12 05:36:50,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:36:50,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270977652] [2022-07-12 05:36:50,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270977652] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:36:50,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357933378] [2022-07-12 05:36:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:36:50,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:36:50,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:36:50,984 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:36:50,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-12 05:36:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:36:51,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 4059 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-12 05:36:51,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:36:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 711 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2022-07-12 05:36:51,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:36:51,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357933378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:36:51,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:36:51,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21] total 27 [2022-07-12 05:36:51,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124823422] [2022-07-12 05:36:51,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:36:51,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:36:51,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:36:51,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:36:51,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2022-07-12 05:36:51,845 INFO L87 Difference]: Start difference. First operand 10854 states and 17382 transitions. Second operand has 9 states, 9 states have (on average 25.666666666666668) internal successors, (231), 8 states have internal predecessors, (231), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-12 05:36:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:36:59,306 INFO L93 Difference]: Finished difference Result 39161 states and 64860 transitions. [2022-07-12 05:36:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:36:59,307 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.666666666666668) internal successors, (231), 8 states have internal predecessors, (231), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) Word has length 550 [2022-07-12 05:36:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:36:59,559 INFO L225 Difference]: With dead ends: 39161 [2022-07-12 05:36:59,560 INFO L226 Difference]: Without dead ends: 28362 [2022-07-12 05:36:59,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 670 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=1059, Unknown=0, NotChecked=0, Total=1190 [2022-07-12 05:36:59,601 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 2386 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 7824 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 8679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 7824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:36:59,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2597 Valid, 3440 Invalid, 8679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [855 Valid, 7824 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 05:36:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28362 states. [2022-07-12 05:37:02,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28362 to 25483. [2022-07-12 05:37:02,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25483 states, 20102 states have (on average 1.5625310914336883) internal successors, (31410), 20864 states have internal predecessors, (31410), 3878 states have call successors, (3878), 1223 states have call predecessors, (3878), 1502 states have return successors, (5710), 3753 states have call predecessors, (5710), 3859 states have call successors, (5710) [2022-07-12 05:37:02,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25483 states to 25483 states and 40998 transitions. [2022-07-12 05:37:02,476 INFO L78 Accepts]: Start accepts. Automaton has 25483 states and 40998 transitions. Word has length 550 [2022-07-12 05:37:02,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:37:02,477 INFO L495 AbstractCegarLoop]: Abstraction has 25483 states and 40998 transitions. [2022-07-12 05:37:02,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.666666666666668) internal successors, (231), 8 states have internal predecessors, (231), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-12 05:37:02,477 INFO L276 IsEmpty]: Start isEmpty. Operand 25483 states and 40998 transitions. [2022-07-12 05:37:02,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-07-12 05:37:02,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:37:02,489 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:37:02,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-07-12 05:37:02,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-07-12 05:37:02,690 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:37:02,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:37:02,690 INFO L85 PathProgramCache]: Analyzing trace with hash 310300937, now seen corresponding path program 1 times [2022-07-12 05:37:02,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:37:02,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400258420] [2022-07-12 05:37:02,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:02,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:37:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:02,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:02,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:37:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:37:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 05:37:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 05:37:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:37:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:37:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:37:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:37:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:37:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:37:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:37:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 05:37:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 05:37:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2022-07-12 05:37:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-07-12 05:37:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-07-12 05:37:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-07-12 05:37:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-07-12 05:37:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 86 proven. 136 refuted. 0 times theorem prover too weak. 1255 trivial. 0 not checked. [2022-07-12 05:37:03,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:37:03,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400258420] [2022-07-12 05:37:03,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400258420] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:37:03,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638880358] [2022-07-12 05:37:03,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:03,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:37:03,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:37:03,412 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:37:03,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-12 05:37:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:03,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 4059 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:37:03,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:37:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 688 proven. 0 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-07-12 05:37:03,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:37:03,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638880358] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:37:03,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:37:03,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-12 05:37:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292719155] [2022-07-12 05:37:03,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:37:03,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:37:03,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:37:03,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:37:03,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:37:03,918 INFO L87 Difference]: Start difference. First operand 25483 states and 40998 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-12 05:37:06,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:37:06,906 INFO L93 Difference]: Finished difference Result 50629 states and 81976 transitions. [2022-07-12 05:37:06,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:37:06,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 550 [2022-07-12 05:37:06,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:37:07,016 INFO L225 Difference]: With dead ends: 50629 [2022-07-12 05:37:07,016 INFO L226 Difference]: Without dead ends: 25778 [2022-07-12 05:37:07,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 668 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:37:07,094 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 34 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:37:07,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2411 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:37:07,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25778 states. [2022-07-12 05:37:09,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25778 to 25726. [2022-07-12 05:37:10,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25726 states, 20318 states have (on average 1.5645240673294616) internal successors, (31788), 21080 states have internal predecessors, (31788), 3878 states have call successors, (3878), 1250 states have call predecessors, (3878), 1529 states have return successors, (5386), 3753 states have call predecessors, (5386), 3859 states have call successors, (5386) [2022-07-12 05:37:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25726 states to 25726 states and 41052 transitions. [2022-07-12 05:37:10,120 INFO L78 Accepts]: Start accepts. Automaton has 25726 states and 41052 transitions. Word has length 550 [2022-07-12 05:37:10,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:37:10,120 INFO L495 AbstractCegarLoop]: Abstraction has 25726 states and 41052 transitions. [2022-07-12 05:37:10,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-12 05:37:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 25726 states and 41052 transitions. [2022-07-12 05:37:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-07-12 05:37:10,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:37:10,132 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:37:10,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-07-12 05:37:10,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-07-12 05:37:10,333 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:37:10,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:37:10,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1133683223, now seen corresponding path program 1 times [2022-07-12 05:37:10,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:37:10,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30709732] [2022-07-12 05:37:10,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:10,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:37:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:37:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:37:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 05:37:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 05:37:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 05:37:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:37:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:37:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:37:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:37:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:37:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:37:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:37:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 05:37:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 05:37:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-07-12 05:37:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-07-12 05:37:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-07-12 05:37:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-07-12 05:37:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-12 05:37:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 94 proven. 132 refuted. 0 times theorem prover too weak. 1251 trivial. 0 not checked. [2022-07-12 05:37:10,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:37:10,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30709732] [2022-07-12 05:37:10,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30709732] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:37:10,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967654250] [2022-07-12 05:37:10,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:10,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:37:10,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:37:10,987 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:37:10,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-12 05:37:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:11,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 4058 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 05:37:11,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:37:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 696 proven. 0 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2022-07-12 05:37:11,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:37:11,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967654250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:37:11,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:37:11,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-12 05:37:11,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549332920] [2022-07-12 05:37:11,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:37:11,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:37:11,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:37:11,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:37:11,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:37:11,514 INFO L87 Difference]: Start difference. First operand 25726 states and 41052 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-12 05:37:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:37:14,368 INFO L93 Difference]: Finished difference Result 40246 states and 64589 transitions. [2022-07-12 05:37:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:37:14,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 549 [2022-07-12 05:37:14,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:37:14,471 INFO L225 Difference]: With dead ends: 40246 [2022-07-12 05:37:14,471 INFO L226 Difference]: Without dead ends: 25894 [2022-07-12 05:37:14,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 668 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:37:14,529 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 42 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:37:14,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2438 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:37:14,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25894 states. [2022-07-12 05:37:17,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25894 to 25894. [2022-07-12 05:37:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25894 states, 20458 states have (on average 1.5647179587447453) internal successors, (32011), 21220 states have internal predecessors, (32011), 3892 states have call successors, (3892), 1264 states have call predecessors, (3892), 1543 states have return successors, (5400), 3767 states have call predecessors, (5400), 3873 states have call successors, (5400) [2022-07-12 05:37:17,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25894 states to 25894 states and 41303 transitions. [2022-07-12 05:37:17,621 INFO L78 Accepts]: Start accepts. Automaton has 25894 states and 41303 transitions. Word has length 549 [2022-07-12 05:37:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:37:17,622 INFO L495 AbstractCegarLoop]: Abstraction has 25894 states and 41303 transitions. [2022-07-12 05:37:17,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-12 05:37:17,622 INFO L276 IsEmpty]: Start isEmpty. Operand 25894 states and 41303 transitions. [2022-07-12 05:37:17,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-07-12 05:37:17,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:37:17,634 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:37:17,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-12 05:37:17,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:37:17,848 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:37:17,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:37:17,848 INFO L85 PathProgramCache]: Analyzing trace with hash 355052635, now seen corresponding path program 1 times [2022-07-12 05:37:17,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:37:17,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013676257] [2022-07-12 05:37:17,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:17,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:37:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:37:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:37:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 05:37:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 05:37:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 05:37:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:37:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 05:37:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:37:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 05:37:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 05:37:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:37:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:37:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 05:37:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 05:37:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2022-07-12 05:37:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-07-12 05:37:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-07-12 05:37:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-07-12 05:37:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2022-07-12 05:37:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:18,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 119 proven. 126 refuted. 0 times theorem prover too weak. 1232 trivial. 0 not checked. [2022-07-12 05:37:18,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:37:18,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013676257] [2022-07-12 05:37:18,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013676257] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:37:18,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262479308] [2022-07-12 05:37:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:18,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:37:18,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:37:18,509 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:37:18,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-12 05:37:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:19,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 4061 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-12 05:37:19,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:37:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 709 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-07-12 05:37:19,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:37:19,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262479308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:37:19,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:37:19,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20] total 27 [2022-07-12 05:37:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289452065] [2022-07-12 05:37:19,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:37:19,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:37:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:37:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:37:19,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2022-07-12 05:37:19,536 INFO L87 Difference]: Start difference. First operand 25894 states and 41303 transitions. Second operand has 9 states, 9 states have (on average 25.77777777777778) internal successors, (232), 8 states have internal predecessors, (232), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-12 05:37:29,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:37:29,060 INFO L93 Difference]: Finished difference Result 66018 states and 108298 transitions. [2022-07-12 05:37:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:37:29,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.77777777777778) internal successors, (232), 8 states have internal predecessors, (232), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) Word has length 552 [2022-07-12 05:37:29,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:37:29,450 INFO L225 Difference]: With dead ends: 66018 [2022-07-12 05:37:29,450 INFO L226 Difference]: Without dead ends: 43004 [2022-07-12 05:37:29,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 669 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=1062, Unknown=0, NotChecked=0, Total=1190 [2022-07-12 05:37:29,531 INFO L413 NwaCegarLoop]: 1360 mSDtfsCounter, 2979 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 6979 mSolverCounterSat, 1241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 8220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1241 IncrementalHoareTripleChecker+Valid, 6979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:37:29,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 3171 Invalid, 8220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1241 Valid, 6979 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 05:37:29,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43004 states. [2022-07-12 05:37:33,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43004 to 38471. [2022-07-12 05:37:33,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38471 states, 29890 states have (on average 1.5618266978922717) internal successors, (46683), 31146 states have internal predecessors, (46683), 6354 states have call successors, (6354), 1806 states have call predecessors, (6354), 2226 states have return successors, (9256), 6246 states have call predecessors, (9256), 6327 states have call successors, (9256) [2022-07-12 05:37:34,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38471 states to 38471 states and 62293 transitions. [2022-07-12 05:37:34,101 INFO L78 Accepts]: Start accepts. Automaton has 38471 states and 62293 transitions. Word has length 552 [2022-07-12 05:37:34,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:37:34,101 INFO L495 AbstractCegarLoop]: Abstraction has 38471 states and 62293 transitions. [2022-07-12 05:37:34,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.77777777777778) internal successors, (232), 8 states have internal predecessors, (232), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-12 05:37:34,101 INFO L276 IsEmpty]: Start isEmpty. Operand 38471 states and 62293 transitions. [2022-07-12 05:37:34,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-07-12 05:37:34,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:37:34,117 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:37:34,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-12 05:37:34,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:37:34,318 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:37:34,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:37:34,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1544648475, now seen corresponding path program 1 times [2022-07-12 05:37:34,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:37:34,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329791443] [2022-07-12 05:37:34,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:34,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:37:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:37:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:37:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 05:37:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 05:37:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:37:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:37:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:37:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:37:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:37:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:37:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 05:37:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:37:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:37:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 05:37:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-07-12 05:37:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-07-12 05:37:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-07-12 05:37:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-07-12 05:37:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-07-12 05:37:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 153 proven. 118 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2022-07-12 05:37:34,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:37:34,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329791443] [2022-07-12 05:37:34,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329791443] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:37:34,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026324936] [2022-07-12 05:37:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:34,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:37:34,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:37:34,855 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:37:34,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-12 05:37:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:35,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 4057 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-12 05:37:35,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:37:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 210 proven. 15 refuted. 0 times theorem prover too weak. 1252 trivial. 0 not checked. [2022-07-12 05:37:36,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 05:37:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1376 trivial. 0 not checked. [2022-07-12 05:37:37,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026324936] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 05:37:37,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-12 05:37:37,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16, 8] total 29 [2022-07-12 05:37:37,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202519783] [2022-07-12 05:37:37,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:37:37,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 05:37:37,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:37:37,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 05:37:37,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2022-07-12 05:37:37,595 INFO L87 Difference]: Start difference. First operand 38471 states and 62293 transitions. Second operand has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2022-07-12 05:37:45,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:37:45,505 INFO L93 Difference]: Finished difference Result 69910 states and 113931 transitions. [2022-07-12 05:37:45,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:37:45,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) Word has length 548 [2022-07-12 05:37:45,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:37:45,895 INFO L225 Difference]: With dead ends: 69910 [2022-07-12 05:37:45,895 INFO L226 Difference]: Without dead ends: 52211 [2022-07-12 05:37:45,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1239 GetRequests, 1203 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=869, Unknown=0, NotChecked=0, Total=992 [2022-07-12 05:37:45,962 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 2363 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2379 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:37:45,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2379 Valid, 2181 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 05:37:45,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52211 states. [2022-07-12 05:37:51,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52211 to 51712. [2022-07-12 05:37:51,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51712 states, 40295 states have (on average 1.562799354758655) internal successors, (62973), 41872 states have internal predecessors, (62973), 8589 states have call successors, (8589), 2353 states have call predecessors, (8589), 2827 states have return successors, (12152), 8138 states have call predecessors, (12152), 8552 states have call successors, (12152) [2022-07-12 05:37:52,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51712 states to 51712 states and 83714 transitions. [2022-07-12 05:37:52,029 INFO L78 Accepts]: Start accepts. Automaton has 51712 states and 83714 transitions. Word has length 548 [2022-07-12 05:37:52,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:37:52,029 INFO L495 AbstractCegarLoop]: Abstraction has 51712 states and 83714 transitions. [2022-07-12 05:37:52,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2022-07-12 05:37:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 51712 states and 83714 transitions. [2022-07-12 05:37:52,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2022-07-12 05:37:52,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:37:52,049 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:37:52,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-12 05:37:52,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:37:52,250 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:37:52,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:37:52,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1415118927, now seen corresponding path program 1 times [2022-07-12 05:37:52,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:37:52,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094824200] [2022-07-12 05:37:52,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:52,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:37:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:37:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:37:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 05:37:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:37:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:37:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:37:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:37:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 05:37:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:37:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:37:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:37:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:37:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:37:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:37:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:37:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 05:37:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 05:37:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:37:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 05:37:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:37:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:37:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 05:37:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 05:37:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-12 05:37:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-07-12 05:37:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:37:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-07-12 05:37:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-07-12 05:37:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:37:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2022-07-12 05:37:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2022-07-12 05:37:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:52,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 72 proven. 143 refuted. 0 times theorem prover too weak. 1274 trivial. 0 not checked. [2022-07-12 05:37:52,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:37:52,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094824200] [2022-07-12 05:37:52,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094824200] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:37:52,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706361241] [2022-07-12 05:37:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:37:52,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:37:52,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:37:52,877 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:37:52,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-12 05:37:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:37:53,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 4272 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:37:53,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:37:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked. [2022-07-12 05:37:53,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:37:53,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706361241] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:37:53,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:37:53,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2022-07-12 05:37:53,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585505230] [2022-07-12 05:37:53,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:37:53,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:37:53,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:37:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:37:53,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:37:53,484 INFO L87 Difference]: Start difference. First operand 51712 states and 83714 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-12 05:38:00,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:38:00,057 INFO L93 Difference]: Finished difference Result 89414 states and 146471 transitions. [2022-07-12 05:38:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:38:00,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 564 [2022-07-12 05:38:00,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:38:00,467 INFO L225 Difference]: With dead ends: 89414 [2022-07-12 05:38:00,467 INFO L226 Difference]: Without dead ends: 53233 [2022-07-12 05:38:00,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 688 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-07-12 05:38:00,587 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 210 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:38:00,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2286 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:38:00,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53233 states. [2022-07-12 05:38:06,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53233 to 53233. [2022-07-12 05:38:06,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53233 states, 41738 states have (on average 1.573050936796205) internal successors, (65656), 43315 states have internal predecessors, (65656), 8628 states have call successors, (8628), 2392 states have call predecessors, (8628), 2866 states have return successors, (12191), 8177 states have call predecessors, (12191), 8591 states have call successors, (12191) [2022-07-12 05:38:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53233 states to 53233 states and 86475 transitions. [2022-07-12 05:38:07,065 INFO L78 Accepts]: Start accepts. Automaton has 53233 states and 86475 transitions. Word has length 564 [2022-07-12 05:38:07,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:38:07,065 INFO L495 AbstractCegarLoop]: Abstraction has 53233 states and 86475 transitions. [2022-07-12 05:38:07,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-12 05:38:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 53233 states and 86475 transitions. [2022-07-12 05:38:07,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2022-07-12 05:38:07,085 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:38:07,085 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:38:07,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-07-12 05:38:07,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:38:07,286 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:38:07,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:38:07,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1902542451, now seen corresponding path program 1 times [2022-07-12 05:38:07,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:38:07,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438726285] [2022-07-12 05:38:07,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:38:07,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:38:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:38:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:38:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:38:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:38:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:38:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:38:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:38:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:38:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:38:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:38:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:38:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:38:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:38:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 05:38:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:38:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:38:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:38:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:38:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:38:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:38:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:38:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:38:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:38:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:38:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 05:38:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:38:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:38:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:38:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:38:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:38:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:38:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 05:38:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:38:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:38:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 05:38:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:38:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 05:38:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 05:38:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 05:38:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 05:38:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 05:38:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2022-07-12 05:38:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:38:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-07-12 05:38:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-07-12 05:38:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:38:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-07-12 05:38:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-07-12 05:38:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 66 proven. 146 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-07-12 05:38:07,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:38:07,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438726285] [2022-07-12 05:38:07,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438726285] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:38:07,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388217165] [2022-07-12 05:38:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:38:07,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:38:07,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:38:07,966 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:38:07,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-12 05:38:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:38:08,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 4274 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:38:08,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:38:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2022-07-12 05:38:08,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:38:08,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388217165] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:38:08,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:38:08,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2022-07-12 05:38:08,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926667772] [2022-07-12 05:38:08,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:38:08,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:38:08,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:38:08,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:38:08,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:38:08,521 INFO L87 Difference]: Start difference. First operand 53233 states and 86475 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-12 05:38:15,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:38:15,119 INFO L93 Difference]: Finished difference Result 92234 states and 151388 transitions. [2022-07-12 05:38:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:38:15,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 566 [2022-07-12 05:38:15,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:38:15,335 INFO L225 Difference]: With dead ends: 92234 [2022-07-12 05:38:15,335 INFO L226 Difference]: Without dead ends: 55729 [2022-07-12 05:38:15,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 690 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-07-12 05:38:15,463 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 208 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:38:15,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2286 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:38:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55729 states.