./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-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 dad2aa6a134d55c6f9e0680e747fcd11c50dca1f4f191403c757088bda5dc252 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 01:24:27,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 01:24:27,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 01:24:27,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 01:24:27,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 01:24:27,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 01:24:27,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 01:24:27,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 01:24:27,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 01:24:27,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 01:24:27,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 01:24:27,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 01:24:27,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 01:24:27,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 01:24:27,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 01:24:27,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 01:24:27,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 01:24:27,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 01:24:27,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 01:24:27,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 01:24:27,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 01:24:27,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 01:24:27,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 01:24:27,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 01:24:27,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 01:24:27,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 01:24:27,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 01:24:27,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 01:24:27,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 01:24:27,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 01:24:27,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 01:24:27,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 01:24:27,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 01:24:27,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 01:24:27,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 01:24:27,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 01:24:27,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 01:24:27,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 01:24:27,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 01:24:27,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 01:24:27,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 01:24:27,436 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 01:24:27,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 01:24:27,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 01:24:27,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 01:24:27,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 01:24:27,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 01:24:27,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 01:24:27,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 01:24:27,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 01:24:27,469 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 01:24:27,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 01:24:27,470 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 01:24:27,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 01:24:27,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 01:24:27,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 01:24:27,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 01:24:27,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 01:24:27,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 01:24:27,472 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 01:24:27,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 01:24:27,472 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 01:24:27,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 01:24:27,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 01:24:27,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 01:24:27,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 01:24:27,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:24:27,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 01:24:27,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 01:24:27,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 01:24:27,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 01:24:27,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 01:24:27,482 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 01:24:27,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 01:24:27,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 01:24:27,483 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad2aa6a134d55c6f9e0680e747fcd11c50dca1f4f191403c757088bda5dc252 [2021-12-28 01:24:27,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 01:24:27,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 01:24:27,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 01:24:27,806 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 01:24:27,806 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 01:24:27,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-12-28 01:24:27,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bf0d6949/6b5255ab4cb54df98b154c35a9f0807e/FLAGdc8c7d411 [2021-12-28 01:24:28,636 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 01:24:28,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-12-28 01:24:28,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bf0d6949/6b5255ab4cb54df98b154c35a9f0807e/FLAGdc8c7d411 [2021-12-28 01:24:29,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bf0d6949/6b5255ab4cb54df98b154c35a9f0807e [2021-12-28 01:24:29,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 01:24:29,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 01:24:29,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 01:24:29,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 01:24:29,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 01:24:29,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:24:29" (1/1) ... [2021-12-28 01:24:29,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c95173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:29, skipping insertion in model container [2021-12-28 01:24:29,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:24:29" (1/1) ... [2021-12-28 01:24:29,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 01:24:29,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 01:24:29,974 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32670,32683] [2021-12-28 01:24:30,000 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39748,39761] [2021-12-28 01:24:30,071 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66949,66962] [2021-12-28 01:24:30,090 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[76032,76045] [2021-12-28 01:24:30,104 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82743,82756] [2021-12-28 01:24:30,129 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94707,94720] [2021-12-28 01:24:30,150 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103680,103693] [2021-12-28 01:24:30,187 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111745,111758] [2021-12-28 01:24:30,305 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[150437,150450] [2021-12-28 01:24:30,312 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153987,154000] [2021-12-28 01:24:30,331 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[163014,163027] [2021-12-28 01:24:30,349 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169687,169700] [2021-12-28 01:24:30,394 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[195501,195514] [2021-12-28 01:24:30,461 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[227497,227510] [2021-12-28 01:24:30,508 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[257825,257838] [2021-12-28 01:24:30,561 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[288277,288290] [2021-12-28 01:24:30,606 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[321714,321727] [2021-12-28 01:24:30,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:24:30,798 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 01:24:30,923 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32670,32683] [2021-12-28 01:24:30,934 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39748,39761] [2021-12-28 01:24:30,969 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66949,66962] [2021-12-28 01:24:30,981 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[76032,76045] [2021-12-28 01:24:30,991 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82743,82756] [2021-12-28 01:24:31,007 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94707,94720] [2021-12-28 01:24:31,021 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103680,103693] [2021-12-28 01:24:31,032 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111745,111758] [2021-12-28 01:24:31,080 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[150437,150450] [2021-12-28 01:24:31,086 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153987,154000] [2021-12-28 01:24:31,098 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[163014,163027] [2021-12-28 01:24:31,107 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169687,169700] [2021-12-28 01:24:31,179 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[195501,195514] [2021-12-28 01:24:31,220 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[227497,227510] [2021-12-28 01:24:31,260 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[257825,257838] [2021-12-28 01:24:31,306 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[288277,288290] [2021-12-28 01:24:31,355 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[321714,321727] [2021-12-28 01:24:31,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:24:31,558 INFO L208 MainTranslator]: Completed translation [2021-12-28 01:24:31,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31 WrapperNode [2021-12-28 01:24:31,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 01:24:31,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 01:24:31,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 01:24:31,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 01:24:31,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:31,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:31,916 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18051 [2021-12-28 01:24:31,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 01:24:31,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 01:24:31,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 01:24:31,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 01:24:31,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:31,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:31,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:31,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:32,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:32,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:32,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:32,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 01:24:32,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 01:24:32,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 01:24:32,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 01:24:32,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (1/1) ... [2021-12-28 01:24:32,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:24:32,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 01:24:32,341 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) [2021-12-28 01:24:32,447 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 [2021-12-28 01:24:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 01:24:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 01:24:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 01:24:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 01:24:33,087 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 01:24:33,089 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 01:24:39,109 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 01:24:39,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 01:24:39,150 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 01:24:39,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:24:39 BoogieIcfgContainer [2021-12-28 01:24:39,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 01:24:39,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 01:24:39,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 01:24:39,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 01:24:39,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 01:24:29" (1/3) ... [2021-12-28 01:24:39,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfc043f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:24:39, skipping insertion in model container [2021-12-28 01:24:39,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:24:31" (2/3) ... [2021-12-28 01:24:39,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfc043f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:24:39, skipping insertion in model container [2021-12-28 01:24:39,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:24:39" (3/3) ... [2021-12-28 01:24:39,164 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-12-28 01:24:39,168 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 01:24:39,169 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-12-28 01:24:39,222 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 01:24:39,232 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 01:24:39,232 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-12-28 01:24:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 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) [2021-12-28 01:24:39,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 01:24:39,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:24:39,339 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:24:39,340 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:24:39,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:24:39,345 INFO L85 PathProgramCache]: Analyzing trace with hash -100733711, now seen corresponding path program 1 times [2021-12-28 01:24:39,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:24:39,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786658921] [2021-12-28 01:24:39,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:24:39,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:24:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:24:39,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:24:39,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:24:39,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786658921] [2021-12-28 01:24:39,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786658921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:24:39,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:24:39,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:24:39,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565008485] [2021-12-28 01:24:39,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:24:39,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:24:39,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:24:39,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:24:39,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:24:39,831 INFO L87 Difference]: Start difference. First operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 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 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-12-28 01:24:43,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:24:43,576 INFO L93 Difference]: Finished difference Result 7047 states and 12225 transitions. [2021-12-28 01:24:43,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:24:43,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2021-12-28 01:24:43,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:24:43,608 INFO L225 Difference]: With dead ends: 7047 [2021-12-28 01:24:43,608 INFO L226 Difference]: Without dead ends: 4526 [2021-12-28 01:24:43,616 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:24:43,619 INFO L933 BasicCegarLoop]: 2976 mSDtfsCounter, 20347 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 3550 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20347 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 3550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:24:43,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20347 Valid, 4292 Invalid, 3835 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [285 Valid, 3550 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-28 01:24:43,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2021-12-28 01:24:43,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 4501. [2021-12-28 01:24:43,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4501 states, 4484 states have (on average 1.300178412132025) internal successors, (5830), 4500 states have internal predecessors, (5830), 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) [2021-12-28 01:24:43,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 5830 transitions. [2021-12-28 01:24:43,812 INFO L78 Accepts]: Start accepts. Automaton has 4501 states and 5830 transitions. Word has length 65 [2021-12-28 01:24:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:24:43,813 INFO L470 AbstractCegarLoop]: Abstraction has 4501 states and 5830 transitions. [2021-12-28 01:24:43,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-12-28 01:24:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 4501 states and 5830 transitions. [2021-12-28 01:24:43,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-28 01:24:43,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:24:43,823 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:24:43,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 01:24:43,824 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:24:43,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:24:43,825 INFO L85 PathProgramCache]: Analyzing trace with hash 100373679, now seen corresponding path program 1 times [2021-12-28 01:24:43,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:24:43,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453308333] [2021-12-28 01:24:43,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:24:43,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:24:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:24:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:24:43,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:24:43,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453308333] [2021-12-28 01:24:43,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453308333] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:24:43,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:24:43,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:24:43,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993503008] [2021-12-28 01:24:43,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:24:43,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:24:43,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:24:43,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:24:43,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:24:43,992 INFO L87 Difference]: Start difference. First operand 4501 states and 5830 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-12-28 01:24:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:24:46,483 INFO L93 Difference]: Finished difference Result 8465 states and 10989 transitions. [2021-12-28 01:24:46,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:24:46,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2021-12-28 01:24:46,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:24:46,503 INFO L225 Difference]: With dead ends: 8465 [2021-12-28 01:24:46,503 INFO L226 Difference]: Without dead ends: 5686 [2021-12-28 01:24:46,508 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:24:46,510 INFO L933 BasicCegarLoop]: 1914 mSDtfsCounter, 13225 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13225 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:24:46,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13225 Valid, 2583 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-28 01:24:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5686 states. [2021-12-28 01:24:46,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5686 to 5656. [2021-12-28 01:24:46,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 5639 states have (on average 1.3060826387657387) internal successors, (7365), 5655 states have internal predecessors, (7365), 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) [2021-12-28 01:24:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 7365 transitions. [2021-12-28 01:24:46,786 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 7365 transitions. Word has length 66 [2021-12-28 01:24:46,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:24:46,787 INFO L470 AbstractCegarLoop]: Abstraction has 5656 states and 7365 transitions. [2021-12-28 01:24:46,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-12-28 01:24:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 7365 transitions. [2021-12-28 01:24:46,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-28 01:24:46,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:24:46,798 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:24:46,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 01:24:46,799 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:24:46,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:24:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2043501231, now seen corresponding path program 1 times [2021-12-28 01:24:46,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:24:46,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934544510] [2021-12-28 01:24:46,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:24:46,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:24:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:24:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:24:46,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:24:46,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934544510] [2021-12-28 01:24:46,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934544510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:24:46,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:24:46,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:24:46,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51994753] [2021-12-28 01:24:46,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:24:46,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:24:46,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:24:46,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:24:46,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:24:46,968 INFO L87 Difference]: Start difference. First operand 5656 states and 7365 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-12-28 01:24:49,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:24:49,278 INFO L93 Difference]: Finished difference Result 11341 states and 14793 transitions. [2021-12-28 01:24:49,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:24:49,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2021-12-28 01:24:49,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:24:49,302 INFO L225 Difference]: With dead ends: 11341 [2021-12-28 01:24:49,302 INFO L226 Difference]: Without dead ends: 7095 [2021-12-28 01:24:49,309 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:24:49,310 INFO L933 BasicCegarLoop]: 1612 mSDtfsCounter, 11515 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11515 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-28 01:24:49,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11515 Valid, 2246 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-28 01:24:49,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7095 states. [2021-12-28 01:24:49,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7095 to 7075. [2021-12-28 01:24:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7075 states, 7058 states have (on average 1.3085860017001985) internal successors, (9236), 7074 states have internal predecessors, (9236), 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) [2021-12-28 01:24:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7075 states to 7075 states and 9236 transitions. [2021-12-28 01:24:49,627 INFO L78 Accepts]: Start accepts. Automaton has 7075 states and 9236 transitions. Word has length 66 [2021-12-28 01:24:49,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:24:49,628 INFO L470 AbstractCegarLoop]: Abstraction has 7075 states and 9236 transitions. [2021-12-28 01:24:49,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-12-28 01:24:49,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7075 states and 9236 transitions. [2021-12-28 01:24:49,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-28 01:24:49,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:24:49,636 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:24:49,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 01:24:49,636 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:24:49,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:24:49,637 INFO L85 PathProgramCache]: Analyzing trace with hash 280890183, now seen corresponding path program 1 times [2021-12-28 01:24:49,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:24:49,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659244336] [2021-12-28 01:24:49,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:24:49,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:24:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:24:49,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:24:49,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:24:49,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659244336] [2021-12-28 01:24:49,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659244336] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:24:49,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:24:49,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:24:49,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353347243] [2021-12-28 01:24:49,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:24:49,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:24:49,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:24:49,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:24:49,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:24:49,732 INFO L87 Difference]: Start difference. First operand 7075 states and 9236 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-12-28 01:24:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:24:51,388 INFO L93 Difference]: Finished difference Result 13797 states and 18189 transitions. [2021-12-28 01:24:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:24:51,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 67 [2021-12-28 01:24:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:24:51,422 INFO L225 Difference]: With dead ends: 13797 [2021-12-28 01:24:51,422 INFO L226 Difference]: Without dead ends: 9215 [2021-12-28 01:24:51,431 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:24:51,432 INFO L933 BasicCegarLoop]: 1470 mSDtfsCounter, 9693 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9693 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:24:51,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9693 Valid, 2010 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-28 01:24:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9215 states. [2021-12-28 01:24:51,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9215 to 9175. [2021-12-28 01:24:51,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9175 states, 9158 states have (on average 1.3226687049574142) internal successors, (12113), 9174 states have internal predecessors, (12113), 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) [2021-12-28 01:24:51,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9175 states to 9175 states and 12113 transitions. [2021-12-28 01:24:51,841 INFO L78 Accepts]: Start accepts. Automaton has 9175 states and 12113 transitions. Word has length 67 [2021-12-28 01:24:51,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:24:51,842 INFO L470 AbstractCegarLoop]: Abstraction has 9175 states and 12113 transitions. [2021-12-28 01:24:51,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-12-28 01:24:51,843 INFO L276 IsEmpty]: Start isEmpty. Operand 9175 states and 12113 transitions. [2021-12-28 01:24:51,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-28 01:24:51,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:24:51,852 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:24:51,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 01:24:51,852 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:24:51,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:24:51,853 INFO L85 PathProgramCache]: Analyzing trace with hash 533009189, now seen corresponding path program 1 times [2021-12-28 01:24:51,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:24:51,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982615904] [2021-12-28 01:24:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:24:51,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:24:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:24:52,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:24:52,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:24:52,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982615904] [2021-12-28 01:24:52,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982615904] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:24:52,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:24:52,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 01:24:52,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99731941] [2021-12-28 01:24:52,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:24:52,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 01:24:52,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:24:52,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 01:24:52,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-28 01:24:52,053 INFO L87 Difference]: Start difference. First operand 9175 states and 12113 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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) [2021-12-28 01:24:54,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:24:54,789 INFO L93 Difference]: Finished difference Result 14418 states and 19726 transitions. [2021-12-28 01:24:54,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 01:24:54,789 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2021-12-28 01:24:54,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:24:54,823 INFO L225 Difference]: With dead ends: 14418 [2021-12-28 01:24:54,823 INFO L226 Difference]: Without dead ends: 12884 [2021-12-28 01:24:54,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-28 01:24:54,833 INFO L933 BasicCegarLoop]: 1533 mSDtfsCounter, 14033 mSDsluCounter, 3623 mSDsCounter, 0 mSdLazyCounter, 4339 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14033 SdHoareTripleChecker+Valid, 5156 SdHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 4339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:24:54,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14033 Valid, 5156 Invalid, 4475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 4339 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-28 01:24:54,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12884 states. [2021-12-28 01:24:55,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12884 to 9015. [2021-12-28 01:24:55,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9015 states, 8998 states have (on average 1.3220715714603246) internal successors, (11896), 9014 states have internal predecessors, (11896), 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) [2021-12-28 01:24:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9015 states to 9015 states and 11896 transitions. [2021-12-28 01:24:55,475 INFO L78 Accepts]: Start accepts. Automaton has 9015 states and 11896 transitions. Word has length 68 [2021-12-28 01:24:55,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:24:55,476 INFO L470 AbstractCegarLoop]: Abstraction has 9015 states and 11896 transitions. [2021-12-28 01:24:55,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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) [2021-12-28 01:24:55,476 INFO L276 IsEmpty]: Start isEmpty. Operand 9015 states and 11896 transitions. [2021-12-28 01:24:55,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-28 01:24:55,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:24:55,484 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:24:55,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 01:24:55,484 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:24:55,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:24:55,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1802238869, now seen corresponding path program 1 times [2021-12-28 01:24:55,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:24:55,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148210908] [2021-12-28 01:24:55,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:24:55,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:24:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:24:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:24:55,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:24:55,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148210908] [2021-12-28 01:24:55,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148210908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:24:55,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:24:55,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:24:55,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830014233] [2021-12-28 01:24:55,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:24:55,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:24:55,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:24:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:24:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:24:55,639 INFO L87 Difference]: Start difference. First operand 9015 states and 11896 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 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) [2021-12-28 01:25:00,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:25:00,392 INFO L93 Difference]: Finished difference Result 17830 states and 24364 transitions. [2021-12-28 01:25:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:25:00,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 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 68 [2021-12-28 01:25:00,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:25:00,426 INFO L225 Difference]: With dead ends: 17830 [2021-12-28 01:25:00,426 INFO L226 Difference]: Without dead ends: 16418 [2021-12-28 01:25:00,434 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:25:00,435 INFO L933 BasicCegarLoop]: 1566 mSDtfsCounter, 12111 mSDsluCounter, 7029 mSDsCounter, 0 mSdLazyCounter, 8564 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12111 SdHoareTripleChecker+Valid, 8595 SdHoareTripleChecker+Invalid, 8923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 8564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-28 01:25:00,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12111 Valid, 8595 Invalid, 8923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 8564 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-28 01:25:00,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16418 states. [2021-12-28 01:25:00,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16418 to 8953. [2021-12-28 01:25:00,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8953 states, 8936 states have (on average 1.3217323187108325) internal successors, (11811), 8952 states have internal predecessors, (11811), 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) [2021-12-28 01:25:00,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8953 states to 8953 states and 11811 transitions. [2021-12-28 01:25:00,917 INFO L78 Accepts]: Start accepts. Automaton has 8953 states and 11811 transitions. Word has length 68 [2021-12-28 01:25:00,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:25:00,918 INFO L470 AbstractCegarLoop]: Abstraction has 8953 states and 11811 transitions. [2021-12-28 01:25:00,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 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) [2021-12-28 01:25:00,918 INFO L276 IsEmpty]: Start isEmpty. Operand 8953 states and 11811 transitions. [2021-12-28 01:25:00,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-28 01:25:00,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:25:00,926 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:25:00,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 01:25:00,926 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:25:00,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:25:00,927 INFO L85 PathProgramCache]: Analyzing trace with hash 2141707383, now seen corresponding path program 1 times [2021-12-28 01:25:00,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:25:00,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430471924] [2021-12-28 01:25:00,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:25:00,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:25:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:25:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:25:01,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:25:01,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430471924] [2021-12-28 01:25:01,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430471924] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:25:01,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:25:01,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-28 01:25:01,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614646989] [2021-12-28 01:25:01,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:25:01,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-28 01:25:01,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:25:01,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-28 01:25:01,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-12-28 01:25:01,367 INFO L87 Difference]: Start difference. First operand 8953 states and 11811 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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) [2021-12-28 01:25:05,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:25:05,413 INFO L93 Difference]: Finished difference Result 20886 states and 29227 transitions. [2021-12-28 01:25:05,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-28 01:25:05,414 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 69 [2021-12-28 01:25:05,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:25:05,451 INFO L225 Difference]: With dead ends: 20886 [2021-12-28 01:25:05,452 INFO L226 Difference]: Without dead ends: 20882 [2021-12-28 01:25:05,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2021-12-28 01:25:05,458 INFO L933 BasicCegarLoop]: 2713 mSDtfsCounter, 20699 mSDsluCounter, 19377 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20699 SdHoareTripleChecker+Valid, 22090 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 01:25:05,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20699 Valid, 22090 Invalid, 3347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 01:25:05,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20882 states. [2021-12-28 01:25:06,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20882 to 8949. [2021-12-28 01:25:06,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8933 states have (on average 1.3217284227023396) internal successors, (11807), 8948 states have internal predecessors, (11807), 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) [2021-12-28 01:25:06,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11807 transitions. [2021-12-28 01:25:06,333 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11807 transitions. Word has length 69 [2021-12-28 01:25:06,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:25:06,333 INFO L470 AbstractCegarLoop]: Abstraction has 8949 states and 11807 transitions. [2021-12-28 01:25:06,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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) [2021-12-28 01:25:06,334 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11807 transitions. [2021-12-28 01:25:06,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-28 01:25:06,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:25:06,359 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:25:06,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 01:25:06,359 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:25:06,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:25:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash -50233035, now seen corresponding path program 1 times [2021-12-28 01:25:06,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:25:06,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113081221] [2021-12-28 01:25:06,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:25:06,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:25:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:25:06,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:25:06,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:25:06,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113081221] [2021-12-28 01:25:06,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113081221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:25:06,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:25:06,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:25:06,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230163863] [2021-12-28 01:25:06,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:25:06,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:25:06,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:25:06,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:25:06,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:25:06,547 INFO L87 Difference]: Start difference. First operand 8949 states and 11807 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-12-28 01:25:09,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:25:09,549 INFO L93 Difference]: Finished difference Result 10536 states and 13952 transitions. [2021-12-28 01:25:09,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 01:25:09,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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 69 [2021-12-28 01:25:09,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:25:09,561 INFO L225 Difference]: With dead ends: 10536 [2021-12-28 01:25:09,562 INFO L226 Difference]: Without dead ends: 10530 [2021-12-28 01:25:09,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-12-28 01:25:09,565 INFO L933 BasicCegarLoop]: 1475 mSDtfsCounter, 13448 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 5080 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13448 SdHoareTripleChecker+Valid, 6225 SdHoareTripleChecker+Invalid, 5332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 5080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:25:09,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13448 Valid, 6225 Invalid, 5332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 5080 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-28 01:25:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10530 states. [2021-12-28 01:25:10,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10530 to 8949. [2021-12-28 01:25:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8933 states have (on average 1.3216164782267996) internal successors, (11806), 8948 states have internal predecessors, (11806), 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) [2021-12-28 01:25:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11806 transitions. [2021-12-28 01:25:10,399 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11806 transitions. Word has length 69 [2021-12-28 01:25:10,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:25:10,399 INFO L470 AbstractCegarLoop]: Abstraction has 8949 states and 11806 transitions. [2021-12-28 01:25:10,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-12-28 01:25:10,400 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11806 transitions. [2021-12-28 01:25:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-28 01:25:10,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:25:10,407 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:25:10,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 01:25:10,407 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:25:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:25:10,408 INFO L85 PathProgramCache]: Analyzing trace with hash 487125926, now seen corresponding path program 1 times [2021-12-28 01:25:10,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:25:10,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054030520] [2021-12-28 01:25:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:25:10,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:25:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:25:10,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:25:10,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:25:10,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054030520] [2021-12-28 01:25:10,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054030520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:25:10,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:25:10,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:25:10,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455829528] [2021-12-28 01:25:10,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:25:10,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:25:10,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:25:10,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:25:10,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:25:10,598 INFO L87 Difference]: Start difference. First operand 8949 states and 11806 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-12-28 01:25:14,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:25:14,019 INFO L93 Difference]: Finished difference Result 11316 states and 14888 transitions. [2021-12-28 01:25:14,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 01:25:14,019 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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 69 [2021-12-28 01:25:14,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:25:14,031 INFO L225 Difference]: With dead ends: 11316 [2021-12-28 01:25:14,031 INFO L226 Difference]: Without dead ends: 11307 [2021-12-28 01:25:14,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-12-28 01:25:14,034 INFO L933 BasicCegarLoop]: 1437 mSDtfsCounter, 13776 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 5384 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13776 SdHoareTripleChecker+Valid, 6087 SdHoareTripleChecker+Invalid, 5733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 5384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-28 01:25:14,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13776 Valid, 6087 Invalid, 5733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 5384 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-28 01:25:14,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2021-12-28 01:25:14,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 8949. [2021-12-28 01:25:14,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8933 states have (on average 1.3215045337512594) internal successors, (11805), 8948 states have internal predecessors, (11805), 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) [2021-12-28 01:25:14,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11805 transitions. [2021-12-28 01:25:14,884 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11805 transitions. Word has length 69 [2021-12-28 01:25:14,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:25:14,884 INFO L470 AbstractCegarLoop]: Abstraction has 8949 states and 11805 transitions. [2021-12-28 01:25:14,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-12-28 01:25:14,885 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11805 transitions. [2021-12-28 01:25:14,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-28 01:25:14,891 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:25:14,891 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:25:14,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 01:25:14,892 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-28 01:25:14,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:25:14,892 INFO L85 PathProgramCache]: Analyzing trace with hash -465119641, now seen corresponding path program 1 times [2021-12-28 01:25:14,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:25:14,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839059475] [2021-12-28 01:25:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:25:14,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:25:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:25:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:25:15,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:25:15,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839059475] [2021-12-28 01:25:15,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839059475] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:25:15,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:25:15,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 01:25:15,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376488634] [2021-12-28 01:25:15,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:25:15,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-28 01:25:15,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:25:15,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-28 01:25:15,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-28 01:25:15,152 INFO L87 Difference]: Start difference. First operand 8949 states and 11805 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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)