./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.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 ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:50:55,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:50:55,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:50:55,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:50:55,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:50:55,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:50:55,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:50:55,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:50:55,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:50:55,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:50:55,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:50:55,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:50:55,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:50:55,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:50:55,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:50:55,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:50:55,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:50:55,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:50:55,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:50:55,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:50:55,408 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:50:55,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:50:55,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:50:55,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:50:55,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:50:55,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:50:55,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:50:55,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:50:55,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:50:55,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:50:55,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:50:55,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:50:55,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:50:55,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:50:55,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:50:55,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:50:55,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:50:55,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:50:55,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:50:55,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:50:55,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:50:55,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:50:55,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:50:55,469 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:50:55,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:50:55,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:50:55,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:50:55,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:50:55,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:50:55,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:50:55,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:50:55,472 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:50:55,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:50:55,473 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:50:55,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:50:55,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:50:55,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:50:55,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:50:55,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:50:55,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:50:55,475 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:50:55,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:50:55,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:50:55,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:50:55,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:50:55,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:50:55,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:50:55,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:50:55,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:50:55,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:50:55,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:50:55,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:50:55,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:50:55,478 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:50:55,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:50:55,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:50:55,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 [2022-07-21 05:50:55,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:50:55,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:50:55,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:50:55,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:50:55,778 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:50:55,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-21 05:50:55,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b49047f12/e22c1096027a43558ecbaac2c0074288/FLAGc40ca022f [2022-07-21 05:50:56,525 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:50:56,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-21 05:50:56,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b49047f12/e22c1096027a43558ecbaac2c0074288/FLAGc40ca022f [2022-07-21 05:50:56,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b49047f12/e22c1096027a43558ecbaac2c0074288 [2022-07-21 05:50:56,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:50:56,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:50:56,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:50:56,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:50:56,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:50:56,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:50:56" (1/1) ... [2022-07-21 05:50:56,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496b40d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:56, skipping insertion in model container [2022-07-21 05:50:56,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:50:56" (1/1) ... [2022-07-21 05:50:56,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:50:57,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:50:57,476 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13606,13619] [2022-07-21 05:50:57,510 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19227,19240] [2022-07-21 05:50:57,523 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20416,20429] [2022-07-21 05:50:57,544 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22562,22575] [2022-07-21 05:50:57,559 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25842,25855] [2022-07-21 05:50:57,598 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32130,32143] [2022-07-21 05:50:58,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:50:58,031 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:50:58,119 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13606,13619] [2022-07-21 05:50:58,150 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19227,19240] [2022-07-21 05:50:58,160 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20416,20429] [2022-07-21 05:50:58,177 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22562,22575] [2022-07-21 05:50:58,199 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25842,25855] [2022-07-21 05:50:58,242 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32130,32143] [2022-07-21 05:50:58,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:50:58,551 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:50:58,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58 WrapperNode [2022-07-21 05:50:58,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:50:58,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:50:58,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:50:58,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:50:58,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:58,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:58,805 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8789 [2022-07-21 05:50:58,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:50:58,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:50:58,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:50:58,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:50:58,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:58,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:58,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:58,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:58,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:58,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:59,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:59,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:50:59,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:50:59,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:50:59,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:50:59,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (1/1) ... [2022-07-21 05:50:59,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:50:59,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:50:59,064 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) [2022-07-21 05:50:59,088 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 [2022-07-21 05:50:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:50:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:50:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:50:59,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:50:59,599 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:50:59,601 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:51:02,901 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:51:02,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:51:02,927 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 05:51:02,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:51:02 BoogieIcfgContainer [2022-07-21 05:51:02,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:51:02,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:51:02,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:51:02,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:51:02,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:50:56" (1/3) ... [2022-07-21 05:51:02,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16149eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:51:02, skipping insertion in model container [2022-07-21 05:51:02,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:58" (2/3) ... [2022-07-21 05:51:02,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16149eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:51:02, skipping insertion in model container [2022-07-21 05:51:02,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:51:02" (3/3) ... [2022-07-21 05:51:02,941 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-21 05:51:02,953 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:51:02,954 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-21 05:51:03,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:51:03,050 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@57bbb73e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@77ab027b [2022-07-21 05:51:03,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-21 05:51:03,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 1751 states, 1744 states have (on average 1.8004587155963303) internal successors, (3140), 1750 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 05:51:03,095 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:03,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:03,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:03,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:03,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1733440182, now seen corresponding path program 1 times [2022-07-21 05:51:03,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:03,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365447579] [2022-07-21 05:51:03,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:03,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:03,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:03,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365447579] [2022-07-21 05:51:03,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365447579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:03,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:03,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:51:03,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580310896] [2022-07-21 05:51:03,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:03,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:51:03,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:03,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:51:03,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:03,501 INFO L87 Difference]: Start difference. First operand has 1751 states, 1744 states have (on average 1.8004587155963303) internal successors, (3140), 1750 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:03,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:03,927 INFO L93 Difference]: Finished difference Result 2512 states and 4420 transitions. [2022-07-21 05:51:03,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:51:03,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-21 05:51:03,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:03,961 INFO L225 Difference]: With dead ends: 2512 [2022-07-21 05:51:03,962 INFO L226 Difference]: Without dead ends: 2315 [2022-07-21 05:51:03,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:03,970 INFO L413 NwaCegarLoop]: 3623 mSDtfsCounter, 1878 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:03,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 5631 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:51:03,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2022-07-21 05:51:04,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2305. [2022-07-21 05:51:04,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2299 states have (on average 1.3057851239669422) internal successors, (3002), 2304 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:04,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3002 transitions. [2022-07-21 05:51:04,103 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3002 transitions. Word has length 75 [2022-07-21 05:51:04,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:04,105 INFO L495 AbstractCegarLoop]: Abstraction has 2305 states and 3002 transitions. [2022-07-21 05:51:04,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:04,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3002 transitions. [2022-07-21 05:51:04,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 05:51:04,115 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:04,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:04,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:51:04,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:04,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:04,117 INFO L85 PathProgramCache]: Analyzing trace with hash 992628656, now seen corresponding path program 1 times [2022-07-21 05:51:04,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:04,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172377389] [2022-07-21 05:51:04,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:04,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:04,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:04,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:04,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172377389] [2022-07-21 05:51:04,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172377389] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:04,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:04,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:51:04,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411328897] [2022-07-21 05:51:04,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:04,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:51:04,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:04,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:51:04,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:04,291 INFO L87 Difference]: Start difference. First operand 2305 states and 3002 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:04,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:04,494 INFO L93 Difference]: Finished difference Result 3218 states and 4351 transitions. [2022-07-21 05:51:04,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:51:04,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-21 05:51:04,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:04,506 INFO L225 Difference]: With dead ends: 3218 [2022-07-21 05:51:04,506 INFO L226 Difference]: Without dead ends: 2759 [2022-07-21 05:51:04,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:04,510 INFO L413 NwaCegarLoop]: 2345 mSDtfsCounter, 1183 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:04,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 3768 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:51:04,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2022-07-21 05:51:04,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2749. [2022-07-21 05:51:04,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2743 states have (on average 1.3313889901567626) internal successors, (3652), 2748 states have internal predecessors, (3652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:04,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3652 transitions. [2022-07-21 05:51:04,595 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3652 transitions. Word has length 75 [2022-07-21 05:51:04,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:04,596 INFO L495 AbstractCegarLoop]: Abstraction has 2749 states and 3652 transitions. [2022-07-21 05:51:04,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:04,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3652 transitions. [2022-07-21 05:51:04,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 05:51:04,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:04,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:04,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:51:04,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:04,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:04,603 INFO L85 PathProgramCache]: Analyzing trace with hash -293589288, now seen corresponding path program 1 times [2022-07-21 05:51:04,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:04,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511792662] [2022-07-21 05:51:04,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:04,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:04,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:04,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511792662] [2022-07-21 05:51:04,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511792662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:04,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:04,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:51:04,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511651163] [2022-07-21 05:51:04,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:04,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:51:04,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:04,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:51:04,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:51:04,716 INFO L87 Difference]: Start difference. First operand 2749 states and 3652 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:05,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:05,760 INFO L93 Difference]: Finished difference Result 5032 states and 6903 transitions. [2022-07-21 05:51:05,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:51:05,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-21 05:51:05,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:05,772 INFO L225 Difference]: With dead ends: 5032 [2022-07-21 05:51:05,772 INFO L226 Difference]: Without dead ends: 2885 [2022-07-21 05:51:05,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:05,776 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 5801 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5801 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:05,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5801 Valid, 1211 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 05:51:05,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2022-07-21 05:51:05,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2875. [2022-07-21 05:51:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2869 states have (on average 1.3851516207737888) internal successors, (3974), 2874 states have internal predecessors, (3974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:05,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3974 transitions. [2022-07-21 05:51:05,904 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3974 transitions. Word has length 75 [2022-07-21 05:51:05,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:05,905 INFO L495 AbstractCegarLoop]: Abstraction has 2875 states and 3974 transitions. [2022-07-21 05:51:05,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:05,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3974 transitions. [2022-07-21 05:51:05,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-21 05:51:05,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:05,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:05,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:51:05,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:05,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:05,912 INFO L85 PathProgramCache]: Analyzing trace with hash -659862233, now seen corresponding path program 1 times [2022-07-21 05:51:05,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:05,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627687804] [2022-07-21 05:51:05,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:05,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:06,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:06,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:06,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627687804] [2022-07-21 05:51:06,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627687804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:06,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:06,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:51:06,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459281837] [2022-07-21 05:51:06,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:06,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:51:06,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:06,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:51:06,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:51:06,050 INFO L87 Difference]: Start difference. First operand 2875 states and 3974 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:06,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:06,929 INFO L93 Difference]: Finished difference Result 6085 states and 8642 transitions. [2022-07-21 05:51:06,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:51:06,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-07-21 05:51:06,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:06,944 INFO L225 Difference]: With dead ends: 6085 [2022-07-21 05:51:06,944 INFO L226 Difference]: Without dead ends: 3652 [2022-07-21 05:51:06,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:06,949 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 4617 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4617 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:06,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4617 Valid, 990 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 05:51:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2022-07-21 05:51:07,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3642. [2022-07-21 05:51:07,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3636 states have (on average 1.4254675467546756) internal successors, (5183), 3641 states have internal predecessors, (5183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:07,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 5183 transitions. [2022-07-21 05:51:07,171 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 5183 transitions. Word has length 76 [2022-07-21 05:51:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:07,173 INFO L495 AbstractCegarLoop]: Abstraction has 3642 states and 5183 transitions. [2022-07-21 05:51:07,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 5183 transitions. [2022-07-21 05:51:07,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 05:51:07,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:07,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:07,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:51:07,179 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:07,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:07,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1653621631, now seen corresponding path program 1 times [2022-07-21 05:51:07,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:07,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533813038] [2022-07-21 05:51:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:07,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:07,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:07,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533813038] [2022-07-21 05:51:07,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533813038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:07,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:07,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:51:07,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865939052] [2022-07-21 05:51:07,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:07,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:51:07,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:07,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:51:07,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:07,293 INFO L87 Difference]: Start difference. First operand 3642 states and 5183 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:07,567 INFO L93 Difference]: Finished difference Result 7380 states and 10651 transitions. [2022-07-21 05:51:07,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:51:07,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 05:51:07,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:07,586 INFO L225 Difference]: With dead ends: 7380 [2022-07-21 05:51:07,586 INFO L226 Difference]: Without dead ends: 5163 [2022-07-21 05:51:07,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:07,591 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 1094 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:07,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 2702 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:51:07,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2022-07-21 05:51:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5145. [2022-07-21 05:51:07,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5139 states have (on average 1.4135045728741) internal successors, (7264), 5144 states have internal predecessors, (7264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 7264 transitions. [2022-07-21 05:51:07,850 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 7264 transitions. Word has length 77 [2022-07-21 05:51:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:07,850 INFO L495 AbstractCegarLoop]: Abstraction has 5145 states and 7264 transitions. [2022-07-21 05:51:07,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:07,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 7264 transitions. [2022-07-21 05:51:07,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 05:51:07,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:07,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:07,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:51:07,858 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:07,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:07,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1766360593, now seen corresponding path program 1 times [2022-07-21 05:51:07,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:07,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969718633] [2022-07-21 05:51:07,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:07,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:07,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:07,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:07,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969718633] [2022-07-21 05:51:07,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969718633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:07,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:07,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:51:07,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463066594] [2022-07-21 05:51:07,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:07,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:51:07,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:07,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:51:07,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:07,915 INFO L87 Difference]: Start difference. First operand 5145 states and 7264 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:08,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:08,265 INFO L93 Difference]: Finished difference Result 10416 states and 14895 transitions. [2022-07-21 05:51:08,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:51:08,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 05:51:08,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:08,291 INFO L225 Difference]: With dead ends: 10416 [2022-07-21 05:51:08,291 INFO L226 Difference]: Without dead ends: 7235 [2022-07-21 05:51:08,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:08,298 INFO L413 NwaCegarLoop]: 1775 mSDtfsCounter, 1112 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:08,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 2710 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:51:08,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2022-07-21 05:51:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 7213. [2022-07-21 05:51:08,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7213 states, 7207 states have (on average 1.4014152906896074) internal successors, (10100), 7212 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 10100 transitions. [2022-07-21 05:51:08,732 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 10100 transitions. Word has length 77 [2022-07-21 05:51:08,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:08,733 INFO L495 AbstractCegarLoop]: Abstraction has 7213 states and 10100 transitions. [2022-07-21 05:51:08,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 10100 transitions. [2022-07-21 05:51:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 05:51:08,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:08,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:08,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:51:08,744 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:08,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:08,745 INFO L85 PathProgramCache]: Analyzing trace with hash -775572248, now seen corresponding path program 1 times [2022-07-21 05:51:08,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:08,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513387179] [2022-07-21 05:51:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:08,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:08,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:08,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513387179] [2022-07-21 05:51:08,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513387179] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:08,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:08,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:51:08,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779894879] [2022-07-21 05:51:08,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:08,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:51:08,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:08,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:51:08,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:08,802 INFO L87 Difference]: Start difference. First operand 7213 states and 10100 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:09,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:09,353 INFO L93 Difference]: Finished difference Result 16568 states and 23715 transitions. [2022-07-21 05:51:09,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:51:09,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 05:51:09,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:09,386 INFO L225 Difference]: With dead ends: 16568 [2022-07-21 05:51:09,387 INFO L226 Difference]: Without dead ends: 11139 [2022-07-21 05:51:09,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:09,398 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 716 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:09,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 2330 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:51:09,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11139 states. [2022-07-21 05:51:09,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11139 to 11129. [2022-07-21 05:51:10,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11129 states, 11123 states have (on average 1.4129281668614582) internal successors, (15716), 11128 states have internal predecessors, (15716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11129 states to 11129 states and 15716 transitions. [2022-07-21 05:51:10,043 INFO L78 Accepts]: Start accepts. Automaton has 11129 states and 15716 transitions. Word has length 77 [2022-07-21 05:51:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:10,044 INFO L495 AbstractCegarLoop]: Abstraction has 11129 states and 15716 transitions. [2022-07-21 05:51:10,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 11129 states and 15716 transitions. [2022-07-21 05:51:10,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 05:51:10,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:10,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:10,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:51:10,056 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:10,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:10,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1793167006, now seen corresponding path program 1 times [2022-07-21 05:51:10,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:10,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367075999] [2022-07-21 05:51:10,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:10,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:10,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:10,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367075999] [2022-07-21 05:51:10,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367075999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:10,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:10,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:51:10,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443074601] [2022-07-21 05:51:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:10,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:51:10,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:51:10,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:51:10,153 INFO L87 Difference]: Start difference. First operand 11129 states and 15716 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:11,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:11,457 INFO L93 Difference]: Finished difference Result 24320 states and 34641 transitions. [2022-07-21 05:51:11,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:51:11,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 05:51:11,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:11,490 INFO L225 Difference]: With dead ends: 24320 [2022-07-21 05:51:11,491 INFO L226 Difference]: Without dead ends: 14157 [2022-07-21 05:51:11,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:11,505 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 3947 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:11,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3947 Valid, 861 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 05:51:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14157 states. [2022-07-21 05:51:12,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14157 to 14111. [2022-07-21 05:51:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14111 states, 14105 states have (on average 1.4162353775257002) internal successors, (19976), 14110 states have internal predecessors, (19976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:12,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14111 states to 14111 states and 19976 transitions. [2022-07-21 05:51:12,464 INFO L78 Accepts]: Start accepts. Automaton has 14111 states and 19976 transitions. Word has length 77 [2022-07-21 05:51:12,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:12,464 INFO L495 AbstractCegarLoop]: Abstraction has 14111 states and 19976 transitions. [2022-07-21 05:51:12,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:12,465 INFO L276 IsEmpty]: Start isEmpty. Operand 14111 states and 19976 transitions. [2022-07-21 05:51:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-21 05:51:12,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:12,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:12,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:51:12,476 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:12,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:12,477 INFO L85 PathProgramCache]: Analyzing trace with hash 384616632, now seen corresponding path program 1 times [2022-07-21 05:51:12,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:12,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308644243] [2022-07-21 05:51:12,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:12,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:12,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:12,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:12,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308644243] [2022-07-21 05:51:12,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308644243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:12,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:12,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:51:12,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256350689] [2022-07-21 05:51:12,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:12,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:51:12,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:12,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:51:12,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:12,597 INFO L87 Difference]: Start difference. First operand 14111 states and 19976 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:16,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:16,722 INFO L93 Difference]: Finished difference Result 49980 states and 72255 transitions. [2022-07-21 05:51:16,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 05:51:16,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-21 05:51:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:16,833 INFO L225 Difference]: With dead ends: 49980 [2022-07-21 05:51:16,833 INFO L226 Difference]: Without dead ends: 45636 [2022-07-21 05:51:16,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:51:16,859 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 7438 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7438 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:16,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7438 Valid, 1774 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 05:51:16,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45636 states. [2022-07-21 05:51:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45636 to 14159. [2022-07-21 05:51:18,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14159 states, 14153 states have (on average 1.4159542146541368) internal successors, (20040), 14158 states have internal predecessors, (20040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:18,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14159 states to 14159 states and 20040 transitions. [2022-07-21 05:51:18,326 INFO L78 Accepts]: Start accepts. Automaton has 14159 states and 20040 transitions. Word has length 78 [2022-07-21 05:51:18,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:18,327 INFO L495 AbstractCegarLoop]: Abstraction has 14159 states and 20040 transitions. [2022-07-21 05:51:18,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:18,327 INFO L276 IsEmpty]: Start isEmpty. Operand 14159 states and 20040 transitions. [2022-07-21 05:51:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-21 05:51:18,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:18,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:18,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:51:18,339 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:18,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:18,343 INFO L85 PathProgramCache]: Analyzing trace with hash -448054908, now seen corresponding path program 1 times [2022-07-21 05:51:18,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:18,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87185639] [2022-07-21 05:51:18,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:18,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:18,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:18,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87185639] [2022-07-21 05:51:18,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87185639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:18,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:18,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:51:18,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120396768] [2022-07-21 05:51:18,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:18,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:51:18,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:18,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:51:18,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:18,471 INFO L87 Difference]: Start difference. First operand 14159 states and 20040 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:23,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:23,832 INFO L93 Difference]: Finished difference Result 58023 states and 84035 transitions. [2022-07-21 05:51:23,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 05:51:23,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-21 05:51:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:23,954 INFO L225 Difference]: With dead ends: 58023 [2022-07-21 05:51:23,955 INFO L226 Difference]: Without dead ends: 52403 [2022-07-21 05:51:23,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:51:23,984 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 6861 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6861 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:23,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6861 Valid, 1751 Invalid, 1620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 05:51:24,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52403 states. [2022-07-21 05:51:25,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52403 to 14339. [2022-07-21 05:51:25,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14339 states, 14333 states have (on average 1.4149166259680457) internal successors, (20280), 14338 states have internal predecessors, (20280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:25,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 20280 transitions. [2022-07-21 05:51:25,471 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 20280 transitions. Word has length 78 [2022-07-21 05:51:25,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:25,472 INFO L495 AbstractCegarLoop]: Abstraction has 14339 states and 20280 transitions. [2022-07-21 05:51:25,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:25,472 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 20280 transitions. [2022-07-21 05:51:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-21 05:51:25,483 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:25,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:25,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 05:51:25,484 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:25,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:25,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1302867127, now seen corresponding path program 1 times [2022-07-21 05:51:25,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:25,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140827265] [2022-07-21 05:51:25,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:25,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:25,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:25,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140827265] [2022-07-21 05:51:25,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140827265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:25,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:25,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:51:25,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837780636] [2022-07-21 05:51:25,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:25,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:51:25,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:25,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:51:25,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:25,569 INFO L87 Difference]: Start difference. First operand 14339 states and 20280 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:31,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:31,787 INFO L93 Difference]: Finished difference Result 52723 states and 76327 transitions. [2022-07-21 05:51:31,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 05:51:31,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-21 05:51:31,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:31,884 INFO L225 Difference]: With dead ends: 52723 [2022-07-21 05:51:31,884 INFO L226 Difference]: Without dead ends: 47389 [2022-07-21 05:51:31,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:51:31,911 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 6456 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6456 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:31,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6456 Valid, 1730 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 05:51:31,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47389 states. [2022-07-21 05:51:33,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47389 to 14639. [2022-07-21 05:51:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14639 states, 14633 states have (on average 1.413517392195722) internal successors, (20684), 14638 states have internal predecessors, (20684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14639 states to 14639 states and 20684 transitions. [2022-07-21 05:51:33,495 INFO L78 Accepts]: Start accepts. Automaton has 14639 states and 20684 transitions. Word has length 78 [2022-07-21 05:51:33,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:33,495 INFO L495 AbstractCegarLoop]: Abstraction has 14639 states and 20684 transitions. [2022-07-21 05:51:33,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:33,495 INFO L276 IsEmpty]: Start isEmpty. Operand 14639 states and 20684 transitions. [2022-07-21 05:51:33,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 05:51:33,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:33,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:33,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 05:51:33,508 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:33,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:33,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2082723386, now seen corresponding path program 1 times [2022-07-21 05:51:33,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:33,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671046927] [2022-07-21 05:51:33,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:33,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:33,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:33,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671046927] [2022-07-21 05:51:33,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671046927] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:33,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:33,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:51:33,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831358910] [2022-07-21 05:51:33,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:33,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:51:33,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:33,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:51:33,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:51:33,599 INFO L87 Difference]: Start difference. First operand 14639 states and 20684 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:35,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:35,772 INFO L93 Difference]: Finished difference Result 21931 states and 31485 transitions. [2022-07-21 05:51:35,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:51:35,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 05:51:35,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:35,806 INFO L225 Difference]: With dead ends: 21931 [2022-07-21 05:51:35,806 INFO L226 Difference]: Without dead ends: 21929 [2022-07-21 05:51:35,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:51:35,817 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 150 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:35,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3825 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:51:35,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21929 states. [2022-07-21 05:51:37,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21929 to 14637. [2022-07-21 05:51:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14637 states, 14632 states have (on average 1.411085292509568) internal successors, (20647), 14636 states have internal predecessors, (20647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:37,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14637 states to 14637 states and 20647 transitions. [2022-07-21 05:51:37,142 INFO L78 Accepts]: Start accepts. Automaton has 14637 states and 20647 transitions. Word has length 79 [2022-07-21 05:51:37,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:37,142 INFO L495 AbstractCegarLoop]: Abstraction has 14637 states and 20647 transitions. [2022-07-21 05:51:37,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:37,143 INFO L276 IsEmpty]: Start isEmpty. Operand 14637 states and 20647 transitions. [2022-07-21 05:51:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 05:51:37,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:37,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:37,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 05:51:37,154 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:37,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash -554526117, now seen corresponding path program 1 times [2022-07-21 05:51:37,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:37,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335268172] [2022-07-21 05:51:37,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:37,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:37,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:37,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:37,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335268172] [2022-07-21 05:51:37,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335268172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:37,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:37,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:51:37,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425184002] [2022-07-21 05:51:37,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:37,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:51:37,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:37,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:51:37,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:51:37,264 INFO L87 Difference]: Start difference. First operand 14637 states and 20647 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:39,455 INFO L93 Difference]: Finished difference Result 21929 states and 31448 transitions. [2022-07-21 05:51:39,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:51:39,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 05:51:39,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:39,489 INFO L225 Difference]: With dead ends: 21929 [2022-07-21 05:51:39,489 INFO L226 Difference]: Without dead ends: 21927 [2022-07-21 05:51:39,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:51:39,498 INFO L413 NwaCegarLoop]: 1324 mSDtfsCounter, 150 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3819 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:39,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3819 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:51:39,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21927 states. [2022-07-21 05:51:40,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21927 to 14635. [2022-07-21 05:51:40,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14635 states, 14631 states have (on average 1.4086528603649784) internal successors, (20610), 14634 states have internal predecessors, (20610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14635 states to 14635 states and 20610 transitions. [2022-07-21 05:51:41,013 INFO L78 Accepts]: Start accepts. Automaton has 14635 states and 20610 transitions. Word has length 79 [2022-07-21 05:51:41,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:41,013 INFO L495 AbstractCegarLoop]: Abstraction has 14635 states and 20610 transitions. [2022-07-21 05:51:41,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 14635 states and 20610 transitions. [2022-07-21 05:51:41,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 05:51:41,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:41,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:41,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 05:51:41,024 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:41,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:41,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2114012911, now seen corresponding path program 1 times [2022-07-21 05:51:41,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:41,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057320892] [2022-07-21 05:51:41,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:41,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:41,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:41,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057320892] [2022-07-21 05:51:41,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057320892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:41,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:41,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:51:41,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372779800] [2022-07-21 05:51:41,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:41,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:51:41,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:41,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:51:41,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:51:41,101 INFO L87 Difference]: Start difference. First operand 14635 states and 20610 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:43,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:43,491 INFO L93 Difference]: Finished difference Result 32708 states and 46104 transitions. [2022-07-21 05:51:43,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:51:43,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 05:51:43,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:43,518 INFO L225 Difference]: With dead ends: 32708 [2022-07-21 05:51:43,518 INFO L226 Difference]: Without dead ends: 18877 [2022-07-21 05:51:43,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:43,535 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3567 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3567 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:43,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3567 Valid, 770 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:51:43,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18877 states. [2022-07-21 05:51:45,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18877 to 18817. [2022-07-21 05:51:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18817 states, 18813 states have (on average 1.3977037155158667) internal successors, (26295), 18816 states have internal predecessors, (26295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:45,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18817 states to 18817 states and 26295 transitions. [2022-07-21 05:51:45,562 INFO L78 Accepts]: Start accepts. Automaton has 18817 states and 26295 transitions. Word has length 79 [2022-07-21 05:51:45,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:45,563 INFO L495 AbstractCegarLoop]: Abstraction has 18817 states and 26295 transitions. [2022-07-21 05:51:45,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:45,563 INFO L276 IsEmpty]: Start isEmpty. Operand 18817 states and 26295 transitions. [2022-07-21 05:51:45,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 05:51:45,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:45,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:45,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 05:51:45,574 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:45,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:45,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1892443340, now seen corresponding path program 1 times [2022-07-21 05:51:45,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:45,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015527121] [2022-07-21 05:51:45,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:45,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:45,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:45,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:45,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015527121] [2022-07-21 05:51:45,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015527121] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:45,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:45,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:51:45,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973825468] [2022-07-21 05:51:45,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:45,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:51:45,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:45,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:51:45,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:51:45,636 INFO L87 Difference]: Start difference. First operand 18817 states and 26295 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:49,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:49,195 INFO L93 Difference]: Finished difference Result 43750 states and 61399 transitions. [2022-07-21 05:51:49,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:51:49,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 05:51:49,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:49,242 INFO L225 Difference]: With dead ends: 43750 [2022-07-21 05:51:49,242 INFO L226 Difference]: Without dead ends: 25804 [2022-07-21 05:51:49,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:49,267 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3971 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3971 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:49,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3971 Valid, 904 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:51:49,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25804 states. [2022-07-21 05:51:51,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25804 to 18817. [2022-07-21 05:51:51,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18817 states, 18813 states have (on average 1.3933450273746877) internal successors, (26213), 18816 states have internal predecessors, (26213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:51,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18817 states to 18817 states and 26213 transitions. [2022-07-21 05:51:51,524 INFO L78 Accepts]: Start accepts. Automaton has 18817 states and 26213 transitions. Word has length 79 [2022-07-21 05:51:51,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:51,524 INFO L495 AbstractCegarLoop]: Abstraction has 18817 states and 26213 transitions. [2022-07-21 05:51:51,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:51,525 INFO L276 IsEmpty]: Start isEmpty. Operand 18817 states and 26213 transitions. [2022-07-21 05:51:51,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 05:51:51,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:51,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:51,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 05:51:51,534 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:51:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1137442928, now seen corresponding path program 1 times [2022-07-21 05:51:51,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:51,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671854333] [2022-07-21 05:51:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:51,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:51,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:51,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671854333] [2022-07-21 05:51:51,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671854333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:51,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:51,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:51:51,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184417319] [2022-07-21 05:51:51,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:51,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:51:51,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:51,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:51:51,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:51,619 INFO L87 Difference]: Start difference. First operand 18817 states and 26213 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:01,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:52:01,535 INFO L93 Difference]: Finished difference Result 67289 states and 95635 transitions. [2022-07-21 05:52:01,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 05:52:01,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-21 05:52:01,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:52:01,627 INFO L225 Difference]: With dead ends: 67289 [2022-07-21 05:52:01,627 INFO L226 Difference]: Without dead ends: 59815 [2022-07-21 05:52:01,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:52:01,647 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 5844 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5844 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 05:52:01,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5844 Valid, 1695 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 05:52:01,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59815 states. [2022-07-21 05:52:04,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59815 to 19324. [2022-07-21 05:52:04,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19324 states, 19320 states have (on average 1.392287784679089) internal successors, (26899), 19323 states have internal predecessors, (26899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:04,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19324 states to 19324 states and 26899 transitions. [2022-07-21 05:52:04,500 INFO L78 Accepts]: Start accepts. Automaton has 19324 states and 26899 transitions. Word has length 80 [2022-07-21 05:52:04,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:52:04,500 INFO L495 AbstractCegarLoop]: Abstraction has 19324 states and 26899 transitions. [2022-07-21 05:52:04,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:04,501 INFO L276 IsEmpty]: Start isEmpty. Operand 19324 states and 26899 transitions. [2022-07-21 05:52:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 05:52:04,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:52:04,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:52:04,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 05:52:04,509 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:52:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:52:04,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1407167192, now seen corresponding path program 1 times [2022-07-21 05:52:04,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:52:04,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140834896] [2022-07-21 05:52:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:52:04,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:52:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:52:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:52:04,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:52:04,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140834896] [2022-07-21 05:52:04,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140834896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:52:04,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:52:04,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:52:04,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661663644] [2022-07-21 05:52:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:52:04,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:52:04,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:52:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:52:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:52:04,585 INFO L87 Difference]: Start difference. First operand 19324 states and 26899 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:14,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:52:14,572 INFO L93 Difference]: Finished difference Result 65475 states and 92497 transitions. [2022-07-21 05:52:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 05:52:14,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-21 05:52:14,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:52:14,674 INFO L225 Difference]: With dead ends: 65475 [2022-07-21 05:52:14,675 INFO L226 Difference]: Without dead ends: 56333 [2022-07-21 05:52:14,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:52:14,698 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 6102 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6102 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 05:52:14,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6102 Valid, 1694 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 05:52:14,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56333 states. [2022-07-21 05:52:17,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56333 to 19408. [2022-07-21 05:52:17,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19408 states, 19404 states have (on average 1.3918264275407133) internal successors, (27007), 19407 states have internal predecessors, (27007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:17,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19408 states to 19408 states and 27007 transitions. [2022-07-21 05:52:17,859 INFO L78 Accepts]: Start accepts. Automaton has 19408 states and 27007 transitions. Word has length 80 [2022-07-21 05:52:17,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:52:17,859 INFO L495 AbstractCegarLoop]: Abstraction has 19408 states and 27007 transitions. [2022-07-21 05:52:17,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:17,860 INFO L276 IsEmpty]: Start isEmpty. Operand 19408 states and 27007 transitions. [2022-07-21 05:52:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-21 05:52:17,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:52:17,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:52:17,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 05:52:17,869 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:52:17,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:52:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1477869642, now seen corresponding path program 1 times [2022-07-21 05:52:17,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:52:17,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53045375] [2022-07-21 05:52:17,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:52:17,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:52:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:52:17,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:52:17,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:52:17,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53045375] [2022-07-21 05:52:17,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53045375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:52:17,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:52:17,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:52:17,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465988206] [2022-07-21 05:52:17,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:52:17,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:52:17,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:52:17,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:52:17,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:52:17,935 INFO L87 Difference]: Start difference. First operand 19408 states and 27007 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:22,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:52:22,890 INFO L93 Difference]: Finished difference Result 30264 states and 42857 transitions. [2022-07-21 05:52:22,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:52:22,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-21 05:52:22,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:52:22,938 INFO L225 Difference]: With dead ends: 30264 [2022-07-21 05:52:22,938 INFO L226 Difference]: Without dead ends: 30262 [2022-07-21 05:52:22,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:52:22,948 INFO L413 NwaCegarLoop]: 1269 mSDtfsCounter, 148 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:52:22,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3656 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:52:22,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30262 states. [2022-07-21 05:52:25,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30262 to 19406. [2022-07-21 05:52:25,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19406 states, 19403 states have (on average 1.3890635468741948) internal successors, (26952), 19405 states have internal predecessors, (26952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19406 states to 19406 states and 26952 transitions. [2022-07-21 05:52:26,006 INFO L78 Accepts]: Start accepts. Automaton has 19406 states and 26952 transitions. Word has length 81 [2022-07-21 05:52:26,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:52:26,006 INFO L495 AbstractCegarLoop]: Abstraction has 19406 states and 26952 transitions. [2022-07-21 05:52:26,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:26,006 INFO L276 IsEmpty]: Start isEmpty. Operand 19406 states and 26952 transitions. [2022-07-21 05:52:26,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-21 05:52:26,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:52:26,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:52:26,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 05:52:26,017 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:52:26,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:52:26,017 INFO L85 PathProgramCache]: Analyzing trace with hash -918459322, now seen corresponding path program 1 times [2022-07-21 05:52:26,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:52:26,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164409600] [2022-07-21 05:52:26,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:52:26,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:52:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:52:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:52:26,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:52:26,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164409600] [2022-07-21 05:52:26,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164409600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:52:26,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:52:26,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:52:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064533083] [2022-07-21 05:52:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:52:26,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:52:26,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:52:26,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:52:26,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:52:26,091 INFO L87 Difference]: Start difference. First operand 19406 states and 26952 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:31,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:52:31,274 INFO L93 Difference]: Finished difference Result 30262 states and 42802 transitions. [2022-07-21 05:52:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:52:31,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-21 05:52:31,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:52:31,315 INFO L225 Difference]: With dead ends: 30262 [2022-07-21 05:52:31,315 INFO L226 Difference]: Without dead ends: 30260 [2022-07-21 05:52:31,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:52:31,326 INFO L413 NwaCegarLoop]: 1267 mSDtfsCounter, 148 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:52:31,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3650 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:52:31,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30260 states. [2022-07-21 05:52:34,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30260 to 19404. [2022-07-21 05:52:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19404 states, 19402 states have (on average 1.386300381403979) internal successors, (26897), 19403 states have internal predecessors, (26897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19404 states to 19404 states and 26897 transitions. [2022-07-21 05:52:34,397 INFO L78 Accepts]: Start accepts. Automaton has 19404 states and 26897 transitions. Word has length 81 [2022-07-21 05:52:34,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:52:34,398 INFO L495 AbstractCegarLoop]: Abstraction has 19404 states and 26897 transitions. [2022-07-21 05:52:34,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 19404 states and 26897 transitions. [2022-07-21 05:52:34,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-21 05:52:34,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:52:34,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:52:34,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 05:52:34,412 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:52:34,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:52:34,412 INFO L85 PathProgramCache]: Analyzing trace with hash 433406996, now seen corresponding path program 1 times [2022-07-21 05:52:34,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:52:34,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082676034] [2022-07-21 05:52:34,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:52:34,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:52:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:52:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:52:34,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:52:34,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082676034] [2022-07-21 05:52:34,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082676034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:52:34,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:52:34,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:52:34,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457940919] [2022-07-21 05:52:34,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:52:34,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:52:34,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:52:34,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:52:34,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:52:34,592 INFO L87 Difference]: Start difference. First operand 19404 states and 26897 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:45,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:52:45,389 INFO L93 Difference]: Finished difference Result 57777 states and 82224 transitions. [2022-07-21 05:52:45,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:52:45,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-21 05:52:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:52:45,453 INFO L225 Difference]: With dead ends: 57777 [2022-07-21 05:52:45,453 INFO L226 Difference]: Without dead ends: 46921 [2022-07-21 05:52:45,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:52:45,476 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 5261 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5261 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:52:45,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5261 Valid, 3669 Invalid, 2958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 05:52:45,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46921 states. [2022-07-21 05:52:48,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46921 to 19404. [2022-07-21 05:52:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19404 states, 19402 states have (on average 1.3856818884651068) internal successors, (26885), 19403 states have internal predecessors, (26885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19404 states to 19404 states and 26885 transitions. [2022-07-21 05:52:49,021 INFO L78 Accepts]: Start accepts. Automaton has 19404 states and 26885 transitions. Word has length 83 [2022-07-21 05:52:49,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:52:49,021 INFO L495 AbstractCegarLoop]: Abstraction has 19404 states and 26885 transitions. [2022-07-21 05:52:49,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 19404 states and 26885 transitions. [2022-07-21 05:52:49,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-21 05:52:49,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:52:49,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:52:49,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 05:52:49,112 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:52:49,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:52:49,113 INFO L85 PathProgramCache]: Analyzing trace with hash -275985466, now seen corresponding path program 1 times [2022-07-21 05:52:49,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:52:49,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886907925] [2022-07-21 05:52:49,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:52:49,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:52:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:52:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:52:49,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:52:49,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886907925] [2022-07-21 05:52:49,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886907925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:52:49,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:52:49,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:52:49,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186437042] [2022-07-21 05:52:49,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:52:49,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:52:49,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:52:49,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:52:49,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:52:49,187 INFO L87 Difference]: Start difference. First operand 19404 states and 26885 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:54,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:52:54,906 INFO L93 Difference]: Finished difference Result 30260 states and 42735 transitions. [2022-07-21 05:52:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:52:54,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-21 05:52:54,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:52:54,951 INFO L225 Difference]: With dead ends: 30260 [2022-07-21 05:52:54,951 INFO L226 Difference]: Without dead ends: 30258 [2022-07-21 05:52:54,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:52:54,962 INFO L413 NwaCegarLoop]: 1264 mSDtfsCounter, 148 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:52:54,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3641 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:52:54,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30258 states. [2022-07-21 05:52:58,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30258 to 19402. [2022-07-21 05:52:58,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19402 states, 19401 states have (on average 1.3815267254265244) internal successors, (26803), 19401 states have internal predecessors, (26803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19402 states to 19402 states and 26803 transitions. [2022-07-21 05:52:58,411 INFO L78 Accepts]: Start accepts. Automaton has 19402 states and 26803 transitions. Word has length 83 [2022-07-21 05:52:58,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:52:58,411 INFO L495 AbstractCegarLoop]: Abstraction has 19402 states and 26803 transitions. [2022-07-21 05:52:58,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:58,412 INFO L276 IsEmpty]: Start isEmpty. Operand 19402 states and 26803 transitions. [2022-07-21 05:52:58,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 05:52:58,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:52:58,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:52:58,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 05:52:58,423 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:52:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:52:58,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1130030564, now seen corresponding path program 1 times [2022-07-21 05:52:58,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:52:58,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766095958] [2022-07-21 05:52:58,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:52:58,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:52:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:52:58,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:52:58,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:52:58,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766095958] [2022-07-21 05:52:58,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766095958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:52:58,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:52:58,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:52:58,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001444166] [2022-07-21 05:52:58,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:52:58,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:52:58,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:52:58,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:52:58,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:52:58,499 INFO L87 Difference]: Start difference. First operand 19402 states and 26803 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:13,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:13,402 INFO L93 Difference]: Finished difference Result 66920 states and 95019 transitions. [2022-07-21 05:53:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 05:53:13,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-21 05:53:13,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:13,496 INFO L225 Difference]: With dead ends: 66920 [2022-07-21 05:53:13,496 INFO L226 Difference]: Without dead ends: 59664 [2022-07-21 05:53:13,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:53:13,518 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 4884 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:13,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 1844 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 05:53:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59664 states. [2022-07-21 05:53:17,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59664 to 19492. [2022-07-21 05:53:17,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19492 states, 19491 states have (on average 1.3813041916782105) internal successors, (26923), 19491 states have internal predecessors, (26923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:17,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19492 states to 19492 states and 26923 transitions. [2022-07-21 05:53:17,469 INFO L78 Accepts]: Start accepts. Automaton has 19492 states and 26923 transitions. Word has length 84 [2022-07-21 05:53:17,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:17,469 INFO L495 AbstractCegarLoop]: Abstraction has 19492 states and 26923 transitions. [2022-07-21 05:53:17,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:17,469 INFO L276 IsEmpty]: Start isEmpty. Operand 19492 states and 26923 transitions. [2022-07-21 05:53:17,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 05:53:17,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:17,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:53:17,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 05:53:17,481 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-21 05:53:17,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:17,482 INFO L85 PathProgramCache]: Analyzing trace with hash -931305841, now seen corresponding path program 1 times [2022-07-21 05:53:17,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:17,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627975423] [2022-07-21 05:53:17,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:17,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:17,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:17,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627975423] [2022-07-21 05:53:17,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627975423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:17,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:17,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 05:53:17,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099567149] [2022-07-21 05:53:17,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:17,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 05:53:17,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:17,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 05:53:17,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 05:53:17,830 INFO L87 Difference]: Start difference. First operand 19492 states and 26923 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:56,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:56,312 INFO L93 Difference]: Finished difference Result 143305 states and 206077 transitions. [2022-07-21 05:53:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-21 05:53:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-21 05:53:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:56,637 INFO L225 Difference]: With dead ends: 143305 [2022-07-21 05:53:56,637 INFO L226 Difference]: Without dead ends: 132395 [2022-07-21 05:53:56,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2022-07-21 05:53:56,687 INFO L413 NwaCegarLoop]: 1266 mSDtfsCounter, 8324 mSDsluCounter, 9839 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8324 SdHoareTripleChecker+Valid, 11105 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:56,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8324 Valid, 11105 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 05:53:56,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132395 states.