./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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.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 d0e47ba9123028218b420ce8d5a00a95c55595f981ba1193a1a3a9086d3ecf65 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:27:59,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:27:59,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:27:59,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:27:59,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:27:59,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:27:59,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:27:59,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:27:59,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:27:59,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:27:59,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:27:59,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:27:59,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:27:59,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:27:59,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:27:59,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:27:59,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:27:59,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:27:59,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:27:59,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:27:59,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:27:59,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:27:59,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:27:59,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:27:59,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:27:59,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:27:59,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:27:59,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:27:59,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:27:59,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:27:59,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:27:59,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:27:59,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:27:59,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:27:59,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:27:59,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:27:59,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:27:59,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:27:59,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:27:59,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:27:59,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:27:59,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:27:59,564 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:27:59,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:27:59,565 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:27:59,565 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:27:59,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:27:59,566 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:27:59,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:27:59,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:27:59,567 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:27:59,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:27:59,567 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:27:59,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:27:59,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:27:59,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:27:59,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:27:59,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:27:59,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:27:59,569 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:27:59,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:27:59,569 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:27:59,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:27:59,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:27:59,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:27:59,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:27:59,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:27:59,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:27:59,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:27:59,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:27:59,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:27:59,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:27:59,572 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:27:59,572 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:27:59,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:27:59,572 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:27:59,573 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0e47ba9123028218b420ce8d5a00a95c55595f981ba1193a1a3a9086d3ecf65 [2021-12-16 01:27:59,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:27:59,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:27:59,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:27:59,855 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:27:59,856 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:27:59,857 INFO L432 ainManager$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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-12-16 01:27:59,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05dfdf06e/822169e3d9034cbabf0eeee2cc7c9e7e/FLAG55f8ca232 [2021-12-16 01:28:00,578 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:28:00,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-12-16 01:28:00,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05dfdf06e/822169e3d9034cbabf0eeee2cc7c9e7e/FLAG55f8ca232 [2021-12-16 01:28:00,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05dfdf06e/822169e3d9034cbabf0eeee2cc7c9e7e [2021-12-16 01:28:00,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:28:00,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:28:00,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:28:00,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:28:00,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:28:00,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:28:00" (1/1) ... [2021-12-16 01:28:00,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645794d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:00, skipping insertion in model container [2021-12-16 01:28:00,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:28:00" (1/1) ... [2021-12-16 01:28:00,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:28:00,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:28:01,466 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32607,32620] [2021-12-16 01:28:01,496 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39665,39678] [2021-12-16 01:28:01,567 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66766,66779] [2021-12-16 01:28:01,585 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75829,75842] [2021-12-16 01:28:01,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82520,82533] [2021-12-16 01:28:01,620 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94424,94437] [2021-12-16 01:28:01,636 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103377,103390] [2021-12-16 01:28:01,650 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111402,111415] [2021-12-16 01:28:01,714 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149914,149927] [2021-12-16 01:28:01,720 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153444,153457] [2021-12-16 01:28:01,738 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162451,162464] [2021-12-16 01:28:01,751 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169104,169117] [2021-12-16 01:28:01,795 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194798,194811] [2021-12-16 01:28:01,908 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226694,226707] [2021-12-16 01:28:01,953 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256902,256915] [2021-12-16 01:28:01,998 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287214,287227] [2021-12-16 01:28:02,048 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320546,320559] [2021-12-16 01:28:02,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:28:02,278 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:28:02,365 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32607,32620] [2021-12-16 01:28:02,376 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39665,39678] [2021-12-16 01:28:02,411 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66766,66779] [2021-12-16 01:28:02,423 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75829,75842] [2021-12-16 01:28:02,432 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82520,82533] [2021-12-16 01:28:02,449 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94424,94437] [2021-12-16 01:28:02,463 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103377,103390] [2021-12-16 01:28:02,473 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111402,111415] [2021-12-16 01:28:02,522 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149914,149927] [2021-12-16 01:28:02,527 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153444,153457] [2021-12-16 01:28:02,539 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162451,162464] [2021-12-16 01:28:02,548 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169104,169117] [2021-12-16 01:28:02,582 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194798,194811] [2021-12-16 01:28:02,642 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226694,226707] [2021-12-16 01:28:02,682 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256902,256915] [2021-12-16 01:28:02,723 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287214,287227] [2021-12-16 01:28:02,779 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.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320546,320559] [2021-12-16 01:28:02,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:28:02,965 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:28:02,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02 WrapperNode [2021-12-16 01:28:02,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:28:02,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:28:02,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:28:02,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:28:02,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,257 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17990 [2021-12-16 01:28:03,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:28:03,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:28:03,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:28:03,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:28:03,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:28:03,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:28:03,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:28:03,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:28:03,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (1/1) ... [2021-12-16 01:28:03,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:28:03,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:28:03,641 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) [2021-12-16 01:28:03,661 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 [2021-12-16 01:28:03,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:28:03,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:28:03,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:28:03,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:28:04,188 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:28:04,190 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:28:09,898 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:28:09,931 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:28:09,931 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 01:28:09,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:28:09 BoogieIcfgContainer [2021-12-16 01:28:09,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:28:09,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:28:09,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:28:09,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:28:09,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:28:00" (1/3) ... [2021-12-16 01:28:09,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f97b2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:28:09, skipping insertion in model container [2021-12-16 01:28:09,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:28:02" (2/3) ... [2021-12-16 01:28:09,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f97b2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:28:09, skipping insertion in model container [2021-12-16 01:28:09,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:28:09" (3/3) ... [2021-12-16 01:28:09,948 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-12-16 01:28:09,953 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:28:09,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-12-16 01:28:10,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:28:10,022 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 [2021-12-16 01:28:10,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-12-16 01:28:10,086 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) [2021-12-16 01:28:10,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-16 01:28:10,120 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:10,120 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] [2021-12-16 01:28:10,121 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)] === [2021-12-16 01:28:10,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:10,126 INFO L85 PathProgramCache]: Analyzing trace with hash -100733711, now seen corresponding path program 1 times [2021-12-16 01:28:10,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:10,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35623906] [2021-12-16 01:28:10,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:10,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:10,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:10,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:10,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35623906] [2021-12-16 01:28:10,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35623906] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:10,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:10,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:28:10,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682196571] [2021-12-16 01:28:10,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:10,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:28:10,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:10,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:28:10,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:28:10,666 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) [2021-12-16 01:28:14,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:14,184 INFO L93 Difference]: Finished difference Result 7023 states and 12201 transitions. [2021-12-16 01:28:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:28:14,186 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 [2021-12-16 01:28:14,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:14,226 INFO L225 Difference]: With dead ends: 7023 [2021-12-16 01:28:14,226 INFO L226 Difference]: Without dead ends: 4502 [2021-12-16 01:28:14,236 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 [2021-12-16 01:28:14,239 INFO L933 BasicCegarLoop]: 2976 mSDtfsCounter, 20410 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20410 SdHoareTripleChecker+Valid, 4268 SdHoareTripleChecker+Invalid, 3733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:28:14,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20410 Valid, 4268 Invalid, 3733 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [211 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-16 01:28:14,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2021-12-16 01:28:14,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4477. [2021-12-16 01:28:14,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4460 states have (on average 1.3017937219730942) internal successors, (5806), 4476 states have internal predecessors, (5806), 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) [2021-12-16 01:28:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5806 transitions. [2021-12-16 01:28:14,514 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5806 transitions. Word has length 65 [2021-12-16 01:28:14,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:14,516 INFO L470 AbstractCegarLoop]: Abstraction has 4477 states and 5806 transitions. [2021-12-16 01:28:14,517 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) [2021-12-16 01:28:14,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5806 transitions. [2021-12-16 01:28:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-16 01:28:14,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:14,527 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] [2021-12-16 01:28:14,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:28:14,529 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)] === [2021-12-16 01:28:14,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash 100373679, now seen corresponding path program 1 times [2021-12-16 01:28:14,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:14,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075648667] [2021-12-16 01:28:14,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:14,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:14,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:14,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:14,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075648667] [2021-12-16 01:28:14,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075648667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:14,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:14,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:28:14,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865201742] [2021-12-16 01:28:14,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:14,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:28:14,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:14,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:28:14,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:28:14,731 INFO L87 Difference]: Start difference. First operand 4477 states and 5806 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) [2021-12-16 01:28:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:16,991 INFO L93 Difference]: Finished difference Result 8429 states and 10953 transitions. [2021-12-16 01:28:16,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:28:16,992 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 [2021-12-16 01:28:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:17,013 INFO L225 Difference]: With dead ends: 8429 [2021-12-16 01:28:17,014 INFO L226 Difference]: Without dead ends: 5662 [2021-12-16 01:28:17,021 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 [2021-12-16 01:28:17,022 INFO L933 BasicCegarLoop]: 1914 mSDtfsCounter, 13225 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 2.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:28:17,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13225 Valid, 2583 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-16 01:28:17,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5662 states. [2021-12-16 01:28:17,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5662 to 5632. [2021-12-16 01:28:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5632 states, 5615 states have (on average 1.3073909171861087) internal successors, (7341), 5631 states have internal predecessors, (7341), 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) [2021-12-16 01:28:17,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5632 states to 5632 states and 7341 transitions. [2021-12-16 01:28:17,248 INFO L78 Accepts]: Start accepts. Automaton has 5632 states and 7341 transitions. Word has length 66 [2021-12-16 01:28:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:17,249 INFO L470 AbstractCegarLoop]: Abstraction has 5632 states and 7341 transitions. [2021-12-16 01:28:17,250 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) [2021-12-16 01:28:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5632 states and 7341 transitions. [2021-12-16 01:28:17,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-16 01:28:17,258 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:17,259 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] [2021-12-16 01:28:17,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:28:17,259 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)] === [2021-12-16 01:28:17,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:17,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2043501231, now seen corresponding path program 1 times [2021-12-16 01:28:17,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:17,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812201771] [2021-12-16 01:28:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:17,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:17,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:17,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:17,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812201771] [2021-12-16 01:28:17,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812201771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:17,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:17,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:28:17,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928020080] [2021-12-16 01:28:17,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:17,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:28:17,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:17,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:28:17,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:28:17,389 INFO L87 Difference]: Start difference. First operand 5632 states and 7341 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) [2021-12-16 01:28:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:19,360 INFO L93 Difference]: Finished difference Result 11309 states and 14761 transitions. [2021-12-16 01:28:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:28:19,361 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 [2021-12-16 01:28:19,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:19,425 INFO L225 Difference]: With dead ends: 11309 [2021-12-16 01:28:19,426 INFO L226 Difference]: Without dead ends: 7079 [2021-12-16 01:28:19,433 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 [2021-12-16 01:28:19,434 INFO L933 BasicCegarLoop]: 1612 mSDtfsCounter, 11515 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2021-12-16 01:28:19,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11515 Valid, 2246 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-16 01:28:19,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2021-12-16 01:28:19,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 7059. [2021-12-16 01:28:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7059 states, 7042 states have (on average 1.3092871343368362) internal successors, (9220), 7058 states have internal predecessors, (9220), 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) [2021-12-16 01:28:19,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7059 states to 7059 states and 9220 transitions. [2021-12-16 01:28:19,714 INFO L78 Accepts]: Start accepts. Automaton has 7059 states and 9220 transitions. Word has length 66 [2021-12-16 01:28:19,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:19,715 INFO L470 AbstractCegarLoop]: Abstraction has 7059 states and 9220 transitions. [2021-12-16 01:28:19,716 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) [2021-12-16 01:28:19,716 INFO L276 IsEmpty]: Start isEmpty. Operand 7059 states and 9220 transitions. [2021-12-16 01:28:19,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-16 01:28:19,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:19,727 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] [2021-12-16 01:28:19,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:28:19,727 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)] === [2021-12-16 01:28:19,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:19,728 INFO L85 PathProgramCache]: Analyzing trace with hash 280890183, now seen corresponding path program 1 times [2021-12-16 01:28:19,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:19,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986511785] [2021-12-16 01:28:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:19,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:19,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:19,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986511785] [2021-12-16 01:28:19,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986511785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:19,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:19,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:28:19,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278659599] [2021-12-16 01:28:19,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:19,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:28:19,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:19,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:28:19,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:28:19,886 INFO L87 Difference]: Start difference. First operand 7059 states and 9220 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) [2021-12-16 01:28:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:21,500 INFO L93 Difference]: Finished difference Result 13777 states and 18169 transitions. [2021-12-16 01:28:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:28:21,501 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 [2021-12-16 01:28:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:21,541 INFO L225 Difference]: With dead ends: 13777 [2021-12-16 01:28:21,541 INFO L226 Difference]: Without dead ends: 9203 [2021-12-16 01:28:21,553 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 [2021-12-16 01:28:21,556 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 [2021-12-16 01:28:21,557 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] [2021-12-16 01:28:21,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9203 states. [2021-12-16 01:28:21,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9203 to 9163. [2021-12-16 01:28:21,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9163 states, 9146 states have (on average 1.323092062103652) internal successors, (12101), 9162 states have internal predecessors, (12101), 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) [2021-12-16 01:28:21,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9163 states to 9163 states and 12101 transitions. [2021-12-16 01:28:21,958 INFO L78 Accepts]: Start accepts. Automaton has 9163 states and 12101 transitions. Word has length 67 [2021-12-16 01:28:21,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:21,959 INFO L470 AbstractCegarLoop]: Abstraction has 9163 states and 12101 transitions. [2021-12-16 01:28:21,959 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) [2021-12-16 01:28:21,960 INFO L276 IsEmpty]: Start isEmpty. Operand 9163 states and 12101 transitions. [2021-12-16 01:28:21,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-16 01:28:21,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:21,967 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] [2021-12-16 01:28:21,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:28:21,969 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)] === [2021-12-16 01:28:21,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:21,970 INFO L85 PathProgramCache]: Analyzing trace with hash 533009189, now seen corresponding path program 1 times [2021-12-16 01:28:21,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:21,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29698380] [2021-12-16 01:28:21,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:21,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:22,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:22,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29698380] [2021-12-16 01:28:22,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29698380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:22,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:22,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:28:22,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258786117] [2021-12-16 01:28:22,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:22,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 01:28:22,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:22,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 01:28:22,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-16 01:28:22,191 INFO L87 Difference]: Start difference. First operand 9163 states and 12101 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) [2021-12-16 01:28:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:25,092 INFO L93 Difference]: Finished difference Result 14406 states and 19714 transitions. [2021-12-16 01:28:25,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 01:28:25,093 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 [2021-12-16 01:28:25,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:25,124 INFO L225 Difference]: With dead ends: 14406 [2021-12-16 01:28:25,124 INFO L226 Difference]: Without dead ends: 12872 [2021-12-16 01:28:25,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-16 01:28:25,132 INFO L933 BasicCegarLoop]: 1533 mSDtfsCounter, 11943 mSDsluCounter, 5103 mSDsCounter, 0 mSdLazyCounter, 5317 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11943 SdHoareTripleChecker+Valid, 6636 SdHoareTripleChecker+Invalid, 5408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 5317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:28:25,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11943 Valid, 6636 Invalid, 5408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 5317 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-16 01:28:25,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12872 states. [2021-12-16 01:28:25,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12872 to 9003. [2021-12-16 01:28:25,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9003 states, 8986 states have (on average 1.3225016692632985) internal successors, (11884), 9002 states have internal predecessors, (11884), 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) [2021-12-16 01:28:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9003 states to 9003 states and 11884 transitions. [2021-12-16 01:28:25,493 INFO L78 Accepts]: Start accepts. Automaton has 9003 states and 11884 transitions. Word has length 68 [2021-12-16 01:28:25,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:25,493 INFO L470 AbstractCegarLoop]: Abstraction has 9003 states and 11884 transitions. [2021-12-16 01:28:25,494 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) [2021-12-16 01:28:25,494 INFO L276 IsEmpty]: Start isEmpty. Operand 9003 states and 11884 transitions. [2021-12-16 01:28:25,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-16 01:28:25,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:25,502 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] [2021-12-16 01:28:25,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:28:25,503 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)] === [2021-12-16 01:28:25,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:25,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1802238869, now seen corresponding path program 1 times [2021-12-16 01:28:25,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:25,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107981263] [2021-12-16 01:28:25,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:25,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:25,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:25,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107981263] [2021-12-16 01:28:25,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107981263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:25,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:25,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:28:25,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834702298] [2021-12-16 01:28:25,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:25,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:28:25,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:25,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:28:25,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:28:25,704 INFO L87 Difference]: Start difference. First operand 9003 states and 11884 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) [2021-12-16 01:28:29,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:29,470 INFO L93 Difference]: Finished difference Result 17380 states and 23758 transitions. [2021-12-16 01:28:29,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:28:29,470 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 [2021-12-16 01:28:29,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:29,498 INFO L225 Difference]: With dead ends: 17380 [2021-12-16 01:28:29,498 INFO L226 Difference]: Without dead ends: 15968 [2021-12-16 01:28:29,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-16 01:28:29,506 INFO L933 BasicCegarLoop]: 1566 mSDtfsCounter, 15304 mSDsluCounter, 5139 mSDsCounter, 0 mSdLazyCounter, 6685 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15304 SdHoareTripleChecker+Valid, 6705 SdHoareTripleChecker+Invalid, 7105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 6685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:28:29,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15304 Valid, 6705 Invalid, 7105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 6685 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-16 01:28:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15968 states. [2021-12-16 01:28:29,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15968 to 8941. [2021-12-16 01:28:29,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8941 states, 8924 states have (on average 1.3221649484536082) internal successors, (11799), 8940 states have internal predecessors, (11799), 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) [2021-12-16 01:28:29,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8941 states to 8941 states and 11799 transitions. [2021-12-16 01:28:29,923 INFO L78 Accepts]: Start accepts. Automaton has 8941 states and 11799 transitions. Word has length 68 [2021-12-16 01:28:29,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:29,924 INFO L470 AbstractCegarLoop]: Abstraction has 8941 states and 11799 transitions. [2021-12-16 01:28:29,924 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) [2021-12-16 01:28:29,924 INFO L276 IsEmpty]: Start isEmpty. Operand 8941 states and 11799 transitions. [2021-12-16 01:28:29,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-16 01:28:29,933 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:29,933 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] [2021-12-16 01:28:29,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:28:29,933 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)] === [2021-12-16 01:28:29,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:29,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2141707383, now seen corresponding path program 1 times [2021-12-16 01:28:29,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:29,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109948310] [2021-12-16 01:28:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:29,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:30,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:30,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109948310] [2021-12-16 01:28:30,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109948310] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:30,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:30,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 01:28:30,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35615456] [2021-12-16 01:28:30,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:30,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:28:30,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:30,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:28:30,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:28:30,345 INFO L87 Difference]: Start difference. First operand 8941 states and 11799 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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) [2021-12-16 01:28:32,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:32,536 INFO L93 Difference]: Finished difference Result 16548 states and 23097 transitions. [2021-12-16 01:28:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-16 01:28:32,536 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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 [2021-12-16 01:28:32,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:32,560 INFO L225 Difference]: With dead ends: 16548 [2021-12-16 01:28:32,561 INFO L226 Difference]: Without dead ends: 16544 [2021-12-16 01:28:32,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2021-12-16 01:28:32,565 INFO L933 BasicCegarLoop]: 2740 mSDtfsCounter, 10672 mSDsluCounter, 16140 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10672 SdHoareTripleChecker+Valid, 18880 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:28:32,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10672 Valid, 18880 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 01:28:32,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16544 states. [2021-12-16 01:28:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16544 to 8937. [2021-12-16 01:28:33,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8937 states, 8921 states have (on average 1.3221611926914023) internal successors, (11795), 8936 states have internal predecessors, (11795), 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) [2021-12-16 01:28:33,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 11795 transitions. [2021-12-16 01:28:33,038 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 11795 transitions. Word has length 69 [2021-12-16 01:28:33,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:33,039 INFO L470 AbstractCegarLoop]: Abstraction has 8937 states and 11795 transitions. [2021-12-16 01:28:33,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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) [2021-12-16 01:28:33,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 11795 transitions. [2021-12-16 01:28:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-16 01:28:33,047 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:33,047 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] [2021-12-16 01:28:33,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 01:28:33,048 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)] === [2021-12-16 01:28:33,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:33,049 INFO L85 PathProgramCache]: Analyzing trace with hash -50233035, now seen corresponding path program 1 times [2021-12-16 01:28:33,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:33,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570038486] [2021-12-16 01:28:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:33,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:33,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:33,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:33,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570038486] [2021-12-16 01:28:33,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570038486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:33,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:33,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:28:33,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483104978] [2021-12-16 01:28:33,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:33,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:28:33,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:33,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:28:33,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:28:33,200 INFO L87 Difference]: Start difference. First operand 8937 states and 11795 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) [2021-12-16 01:28:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:35,890 INFO L93 Difference]: Finished difference Result 10524 states and 13940 transitions. [2021-12-16 01:28:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 01:28:35,890 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 [2021-12-16 01:28:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:35,905 INFO L225 Difference]: With dead ends: 10524 [2021-12-16 01:28:35,905 INFO L226 Difference]: Without dead ends: 10518 [2021-12-16 01:28:35,909 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 [2021-12-16 01:28:35,909 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 [2021-12-16 01:28:35,910 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] [2021-12-16 01:28:35,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10518 states. [2021-12-16 01:28:36,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10518 to 8937. [2021-12-16 01:28:36,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8937 states, 8921 states have (on average 1.3220490976347943) internal successors, (11794), 8936 states have internal predecessors, (11794), 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) [2021-12-16 01:28:36,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 11794 transitions. [2021-12-16 01:28:36,413 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 11794 transitions. Word has length 69 [2021-12-16 01:28:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:36,413 INFO L470 AbstractCegarLoop]: Abstraction has 8937 states and 11794 transitions. [2021-12-16 01:28:36,413 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) [2021-12-16 01:28:36,414 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 11794 transitions. [2021-12-16 01:28:36,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-16 01:28:36,423 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:36,423 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] [2021-12-16 01:28:36,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 01:28:36,424 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)] === [2021-12-16 01:28:36,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:36,425 INFO L85 PathProgramCache]: Analyzing trace with hash 487125926, now seen corresponding path program 1 times [2021-12-16 01:28:36,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:36,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162474828] [2021-12-16 01:28:36,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:36,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:36,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:36,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162474828] [2021-12-16 01:28:36,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162474828] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:36,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:36,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:28:36,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286198828] [2021-12-16 01:28:36,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:36,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:28:36,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:36,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:28:36,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:28:36,593 INFO L87 Difference]: Start difference. First operand 8937 states and 11794 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) [2021-12-16 01:28:39,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:39,911 INFO L93 Difference]: Finished difference Result 12752 states and 17027 transitions. [2021-12-16 01:28:39,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 01:28:39,913 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 [2021-12-16 01:28:39,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:39,933 INFO L225 Difference]: With dead ends: 12752 [2021-12-16 01:28:39,933 INFO L226 Difference]: Without dead ends: 12743 [2021-12-16 01:28:39,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2021-12-16 01:28:39,940 INFO L933 BasicCegarLoop]: 1438 mSDtfsCounter, 9284 mSDsluCounter, 6041 mSDsCounter, 0 mSdLazyCounter, 6501 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9284 SdHoareTripleChecker+Valid, 7479 SdHoareTripleChecker+Invalid, 6745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 6501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:28:39,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9284 Valid, 7479 Invalid, 6745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 6501 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-16 01:28:39,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12743 states. [2021-12-16 01:28:40,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12743 to 8937. [2021-12-16 01:28:40,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8937 states, 8921 states have (on average 1.3219370025781862) internal successors, (11793), 8936 states have internal predecessors, (11793), 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) [2021-12-16 01:28:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 11793 transitions. [2021-12-16 01:28:40,431 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 11793 transitions. Word has length 69 [2021-12-16 01:28:40,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:40,431 INFO L470 AbstractCegarLoop]: Abstraction has 8937 states and 11793 transitions. [2021-12-16 01:28:40,432 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) [2021-12-16 01:28:40,432 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 11793 transitions. [2021-12-16 01:28:40,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-16 01:28:40,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:40,441 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] [2021-12-16 01:28:40,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 01:28:40,441 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)] === [2021-12-16 01:28:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:40,442 INFO L85 PathProgramCache]: Analyzing trace with hash -465119641, now seen corresponding path program 1 times [2021-12-16 01:28:40,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:40,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517919907] [2021-12-16 01:28:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:40,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:40,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:40,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517919907] [2021-12-16 01:28:40,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517919907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:40,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:40,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 01:28:40,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830885939] [2021-12-16 01:28:40,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:40,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 01:28:40,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:40,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 01:28:40,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-16 01:28:40,759 INFO L87 Difference]: Start difference. First operand 8937 states and 11793 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 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) [2021-12-16 01:28:43,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:43,315 INFO L93 Difference]: Finished difference Result 18306 states and 25630 transitions. [2021-12-16 01:28:43,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 01:28:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 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 [2021-12-16 01:28:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:43,336 INFO L225 Difference]: With dead ends: 18306 [2021-12-16 01:28:43,336 INFO L226 Difference]: Without dead ends: 16891 [2021-12-16 01:28:43,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:28:43,345 INFO L933 BasicCegarLoop]: 2609 mSDtfsCounter, 11599 mSDsluCounter, 9792 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11599 SdHoareTripleChecker+Valid, 12401 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:28:43,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11599 Valid, 12401 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 01:28:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16891 states. [2021-12-16 01:28:43,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16891 to 8868. [2021-12-16 01:28:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8868 states, 8853 states have (on average 1.3218118152038858) internal successors, (11702), 8867 states have internal predecessors, (11702), 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) [2021-12-16 01:28:43,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8868 states to 8868 states and 11702 transitions. [2021-12-16 01:28:43,985 INFO L78 Accepts]: Start accepts. Automaton has 8868 states and 11702 transitions. Word has length 69 [2021-12-16 01:28:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:43,986 INFO L470 AbstractCegarLoop]: Abstraction has 8868 states and 11702 transitions. [2021-12-16 01:28:43,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 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) [2021-12-16 01:28:43,986 INFO L276 IsEmpty]: Start isEmpty. Operand 8868 states and 11702 transitions. [2021-12-16 01:28:43,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-16 01:28:43,993 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:43,994 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, 1] [2021-12-16 01:28:43,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 01:28:43,994 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-16 01:28:43,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:43,995 INFO L85 PathProgramCache]: Analyzing trace with hash 215127807, now seen corresponding path program 1 times [2021-12-16 01:28:43,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:43,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840055574] [2021-12-16 01:28:43,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:43,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:44,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:44,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840055574] [2021-12-16 01:28:44,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840055574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:44,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:44,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 01:28:44,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378154292] [2021-12-16 01:28:44,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:44,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:28:44,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:44,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:28:44,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:28:44,258 INFO L87 Difference]: Start difference. First operand 8868 states and 11702 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 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) [2021-12-16 01:28:48,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:28:48,848 INFO L93 Difference]: Finished difference Result 25460 states and 35982 transitions. [2021-12-16 01:28:48,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-16 01:28:48,849 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 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 70 [2021-12-16 01:28:48,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:28:48,882 INFO L225 Difference]: With dead ends: 25460 [2021-12-16 01:28:48,883 INFO L226 Difference]: Without dead ends: 23881 [2021-12-16 01:28:48,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2021-12-16 01:28:48,892 INFO L933 BasicCegarLoop]: 3045 mSDtfsCounter, 18993 mSDsluCounter, 13272 mSDsCounter, 0 mSdLazyCounter, 3587 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18993 SdHoareTripleChecker+Valid, 16317 SdHoareTripleChecker+Invalid, 3986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 3587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:28:48,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18993 Valid, 16317 Invalid, 3986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 3587 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-16 01:28:48,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23881 states. [2021-12-16 01:28:49,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23881 to 8635. [2021-12-16 01:28:49,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8635 states, 8621 states have (on average 1.3195684955341607) internal successors, (11376), 8634 states have internal predecessors, (11376), 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) [2021-12-16 01:28:49,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8635 states to 8635 states and 11376 transitions. [2021-12-16 01:28:49,605 INFO L78 Accepts]: Start accepts. Automaton has 8635 states and 11376 transitions. Word has length 70 [2021-12-16 01:28:49,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:28:49,606 INFO L470 AbstractCegarLoop]: Abstraction has 8635 states and 11376 transitions. [2021-12-16 01:28:49,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 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) [2021-12-16 01:28:49,606 INFO L276 IsEmpty]: Start isEmpty. Operand 8635 states and 11376 transitions. [2021-12-16 01:28:49,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-16 01:28:49,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:28:49,614 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, 1] [2021-12-16 01:28:49,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 01:28:49,615 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-16 01:28:49,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:28:49,616 INFO L85 PathProgramCache]: Analyzing trace with hash 502084112, now seen corresponding path program 1 times [2021-12-16 01:28:49,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:28:49,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744358631] [2021-12-16 01:28:49,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:28:49,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:28:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:28:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:28:49,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:28:49,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744358631] [2021-12-16 01:28:49,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744358631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:28:49,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:28:49,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 01:28:49,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401011446] [2021-12-16 01:28:49,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:28:49,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:28:49,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:28:49,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:28:49,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:28:49,945 INFO L87 Difference]: Start difference. First operand 8635 states and 11376 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 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)