./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.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.UNBOUNDED.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 92ab77284c41e8949aa8a67882902909eedb25047f32a3303bcd08767adce507 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 16:13:59,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 16:13:59,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 16:13:59,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 16:13:59,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 16:13:59,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 16:13:59,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 16:13:59,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 16:13:59,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 16:13:59,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 16:13:59,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 16:13:59,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 16:13:59,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 16:13:59,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 16:13:59,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 16:13:59,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 16:13:59,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 16:13:59,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 16:13:59,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 16:13:59,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 16:13:59,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 16:13:59,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 16:13:59,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 16:13:59,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 16:13:59,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 16:13:59,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 16:13:59,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 16:13:59,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 16:13:59,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 16:13:59,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 16:13:59,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 16:13:59,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 16:13:59,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 16:13:59,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 16:13:59,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 16:13:59,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 16:13:59,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 16:13:59,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 16:13:59,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 16:13:59,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 16:13:59,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 16:13:59,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 16:13:59,416 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 16:13:59,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 16:13:59,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 16:13:59,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 16:13:59,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 16:13:59,418 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 16:13:59,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 16:13:59,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 16:13:59,419 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 16:13:59,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 16:13:59,420 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 16:13:59,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 16:13:59,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 16:13:59,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 16:13:59,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 16:13:59,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 16:13:59,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 16:13:59,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 16:13:59,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 16:13:59,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 16:13:59,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 16:13:59,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 16:13:59,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 16:13:59,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 16:13:59,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:13:59,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 16:13:59,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 16:13:59,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 16:13:59,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 16:13:59,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 16:13:59,422 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 16:13:59,423 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 16:13:59,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 16:13:59,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 16:13:59,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92ab77284c41e8949aa8a67882902909eedb25047f32a3303bcd08767adce507 [2021-12-17 16:13:59,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 16:13:59,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 16:13:59,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 16:13:59,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 16:13:59,631 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 16:13:59,632 INFO L432 ainManager$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.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-17 16:13:59,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3340615ef/957215e1999a491085bc65ccd872bfd6/FLAGa6b279423 [2021-12-17 16:14:00,221 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 16:14:00,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-17 16:14:00,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3340615ef/957215e1999a491085bc65ccd872bfd6/FLAGa6b279423 [2021-12-17 16:14:00,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3340615ef/957215e1999a491085bc65ccd872bfd6 [2021-12-17 16:14:00,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 16:14:00,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 16:14:00,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 16:14:00,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 16:14:00,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 16:14:00,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:14:00" (1/1) ... [2021-12-17 16:14:00,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6294ca80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:00, skipping insertion in model container [2021-12-17 16:14:00,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:14:00" (1/1) ... [2021-12-17 16:14:00,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 16:14:00,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 16:14:01,189 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.UNBOUNDED.pals.c.v+sep-reducer.c[26799,26812] [2021-12-17 16:14:01,214 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.UNBOUNDED.pals.c.v+sep-reducer.c[33129,33142] [2021-12-17 16:14:01,293 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.UNBOUNDED.pals.c.v+sep-reducer.c[57661,57674] [2021-12-17 16:14:01,307 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.UNBOUNDED.pals.c.v+sep-reducer.c[65696,65709] [2021-12-17 16:14:01,317 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.UNBOUNDED.pals.c.v+sep-reducer.c[71499,71512] [2021-12-17 16:14:01,338 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.UNBOUNDED.pals.c.v+sep-reducer.c[82182,82195] [2021-12-17 16:14:01,351 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.UNBOUNDED.pals.c.v+sep-reducer.c[90107,90120] [2021-12-17 16:14:01,371 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.UNBOUNDED.pals.c.v+sep-reducer.c[97295,97308] [2021-12-17 16:14:01,473 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.UNBOUNDED.pals.c.v+sep-reducer.c[131822,131835] [2021-12-17 16:14:01,480 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.UNBOUNDED.pals.c.v+sep-reducer.c[134930,134943] [2021-12-17 16:14:01,490 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.UNBOUNDED.pals.c.v+sep-reducer.c[142923,142936] [2021-12-17 16:14:01,498 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.UNBOUNDED.pals.c.v+sep-reducer.c[148707,148720] [2021-12-17 16:14:01,533 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.UNBOUNDED.pals.c.v+sep-reducer.c[171333,171346] [2021-12-17 16:14:01,571 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.UNBOUNDED.pals.c.v+sep-reducer.c[199069,199082] [2021-12-17 16:14:01,602 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.UNBOUNDED.pals.c.v+sep-reducer.c[225502,225515] [2021-12-17 16:14:01,643 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.UNBOUNDED.pals.c.v+sep-reducer.c[252663,252676] [2021-12-17 16:14:01,676 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.UNBOUNDED.pals.c.v+sep-reducer.c[283670,283683] [2021-12-17 16:14:01,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:14:01,809 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 16:14:01,908 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.UNBOUNDED.pals.c.v+sep-reducer.c[26799,26812] [2021-12-17 16:14:01,928 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.UNBOUNDED.pals.c.v+sep-reducer.c[33129,33142] [2021-12-17 16:14:01,952 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.UNBOUNDED.pals.c.v+sep-reducer.c[57661,57674] [2021-12-17 16:14:01,966 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.UNBOUNDED.pals.c.v+sep-reducer.c[65696,65709] [2021-12-17 16:14:01,972 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.UNBOUNDED.pals.c.v+sep-reducer.c[71499,71512] [2021-12-17 16:14:01,984 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.UNBOUNDED.pals.c.v+sep-reducer.c[82182,82195] [2021-12-17 16:14:01,992 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.UNBOUNDED.pals.c.v+sep-reducer.c[90107,90120] [2021-12-17 16:14:02,005 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.UNBOUNDED.pals.c.v+sep-reducer.c[97295,97308] [2021-12-17 16:14:02,039 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.UNBOUNDED.pals.c.v+sep-reducer.c[131822,131835] [2021-12-17 16:14:02,043 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.UNBOUNDED.pals.c.v+sep-reducer.c[134930,134943] [2021-12-17 16:14:02,051 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.UNBOUNDED.pals.c.v+sep-reducer.c[142923,142936] [2021-12-17 16:14:02,057 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.UNBOUNDED.pals.c.v+sep-reducer.c[148707,148720] [2021-12-17 16:14:02,079 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.UNBOUNDED.pals.c.v+sep-reducer.c[171333,171346] [2021-12-17 16:14:02,103 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.UNBOUNDED.pals.c.v+sep-reducer.c[199069,199082] [2021-12-17 16:14:02,145 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.UNBOUNDED.pals.c.v+sep-reducer.c[225502,225515] [2021-12-17 16:14:02,169 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.UNBOUNDED.pals.c.v+sep-reducer.c[252663,252676] [2021-12-17 16:14:02,195 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.UNBOUNDED.pals.c.v+sep-reducer.c[283670,283683] [2021-12-17 16:14:02,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:14:02,328 INFO L208 MainTranslator]: Completed translation [2021-12-17 16:14:02,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02 WrapperNode [2021-12-17 16:14:02,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 16:14:02,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 16:14:02,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 16:14:02,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 16:14:02,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,576 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16771 [2021-12-17 16:14:02,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 16:14:02,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 16:14:02,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 16:14:02,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 16:14:02,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 16:14:02,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 16:14:02,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 16:14:02,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 16:14:02,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (1/1) ... [2021-12-17 16:14:02,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:14:02,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 16:14:02,890 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) [2021-12-17 16:14:02,905 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 [2021-12-17 16:14:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 16:14:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 16:14:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 16:14:02,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 16:14:03,264 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 16:14:03,265 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 16:14:07,965 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 16:14:07,985 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 16:14:07,986 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 16:14:07,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:14:07 BoogieIcfgContainer [2021-12-17 16:14:07,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 16:14:07,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 16:14:07,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 16:14:07,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 16:14:07,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:14:00" (1/3) ... [2021-12-17 16:14:07,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4352d660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:14:07, skipping insertion in model container [2021-12-17 16:14:07,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:14:02" (2/3) ... [2021-12-17 16:14:07,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4352d660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:14:07, skipping insertion in model container [2021-12-17 16:14:07,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:14:07" (3/3) ... [2021-12-17 16:14:07,996 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-17 16:14:07,999 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 16:14:07,999 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-12-17 16:14:08,057 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 16:14:08,064 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 [2021-12-17 16:14:08,065 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-12-17 16:14:08,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 3532 states, 3514 states have (on average 1.8264086511098463) internal successors, (6418), 3531 states have internal predecessors, (6418), 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) [2021-12-17 16:14:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-17 16:14:08,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:08,141 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] [2021-12-17 16:14:08,142 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)] === [2021-12-17 16:14:08,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:08,145 INFO L85 PathProgramCache]: Analyzing trace with hash -912153875, now seen corresponding path program 1 times [2021-12-17 16:14:08,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:08,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805168496] [2021-12-17 16:14:08,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:08,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:08,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:08,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805168496] [2021-12-17 16:14:08,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805168496] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:08,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:08,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:14:08,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727917183] [2021-12-17 16:14:08,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:08,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:14:08,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:08,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:14:08,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:14:08,486 INFO L87 Difference]: Start difference. First operand has 3532 states, 3514 states have (on average 1.8264086511098463) internal successors, (6418), 3531 states have internal predecessors, (6418), 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 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-12-17 16:14:11,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:11,354 INFO L93 Difference]: Finished difference Result 6625 states and 11820 transitions. [2021-12-17 16:14:11,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:14:11,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2021-12-17 16:14:11,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:11,387 INFO L225 Difference]: With dead ends: 6625 [2021-12-17 16:14:11,387 INFO L226 Difference]: Without dead ends: 4205 [2021-12-17 16:14:11,398 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 [2021-12-17 16:14:11,409 INFO L933 BasicCegarLoop]: 2778 mSDtfsCounter, 19668 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 3575 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19668 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:11,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19668 Valid, 3928 Invalid, 3786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 3575 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 16:14:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states. [2021-12-17 16:14:11,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4205 to 4181. [2021-12-17 16:14:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4181 states, 4164 states have (on average 1.340537944284342) internal successors, (5582), 4180 states have internal predecessors, (5582), 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) [2021-12-17 16:14:11,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4181 states to 4181 states and 5582 transitions. [2021-12-17 16:14:11,549 INFO L78 Accepts]: Start accepts. Automaton has 4181 states and 5582 transitions. Word has length 64 [2021-12-17 16:14:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:11,550 INFO L470 AbstractCegarLoop]: Abstraction has 4181 states and 5582 transitions. [2021-12-17 16:14:11,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-12-17 16:14:11,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4181 states and 5582 transitions. [2021-12-17 16:14:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-17 16:14:11,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:11,558 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] [2021-12-17 16:14:11,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 16:14:11,559 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:11,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:11,561 INFO L85 PathProgramCache]: Analyzing trace with hash -919069742, now seen corresponding path program 1 times [2021-12-17 16:14:11,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:11,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050494484] [2021-12-17 16:14:11,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:11,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:11,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:11,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050494484] [2021-12-17 16:14:11,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050494484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:11,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:11,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:14:11,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448201393] [2021-12-17 16:14:11,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:11,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:14:11,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:11,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:14:11,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:14:11,721 INFO L87 Difference]: Start difference. First operand 4181 states and 5582 transitions. 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) [2021-12-17 16:14:13,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:13,569 INFO L93 Difference]: Finished difference Result 7784 states and 10420 transitions. [2021-12-17 16:14:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:14:13,570 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 [2021-12-17 16:14:13,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:13,582 INFO L225 Difference]: With dead ends: 7784 [2021-12-17 16:14:13,582 INFO L226 Difference]: Without dead ends: 4765 [2021-12-17 16:14:13,586 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 [2021-12-17 16:14:13,586 INFO L933 BasicCegarLoop]: 1520 mSDtfsCounter, 11431 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11431 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:13,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11431 Valid, 2077 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:14:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4765 states. [2021-12-17 16:14:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4765 to 4745. [2021-12-17 16:14:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4745 states, 4728 states have (on average 1.3517343485617597) internal successors, (6391), 4744 states have internal predecessors, (6391), 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) [2021-12-17 16:14:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 6391 transitions. [2021-12-17 16:14:13,678 INFO L78 Accepts]: Start accepts. Automaton has 4745 states and 6391 transitions. Word has length 65 [2021-12-17 16:14:13,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:13,678 INFO L470 AbstractCegarLoop]: Abstraction has 4745 states and 6391 transitions. [2021-12-17 16:14:13,679 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) [2021-12-17 16:14:13,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4745 states and 6391 transitions. [2021-12-17 16:14:13,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-17 16:14:13,684 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:13,684 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] [2021-12-17 16:14:13,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 16:14:13,684 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:13,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:13,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1793005613, now seen corresponding path program 1 times [2021-12-17 16:14:13,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:13,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438719207] [2021-12-17 16:14:13,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:13,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:13,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:13,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438719207] [2021-12-17 16:14:13,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438719207] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:13,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:13,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:14:13,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795477449] [2021-12-17 16:14:13,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:13,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:14:13,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:13,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:14:13,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:14:13,745 INFO L87 Difference]: Start difference. First operand 4745 states and 6391 transitions. 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) [2021-12-17 16:14:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:15,312 INFO L93 Difference]: Finished difference Result 9719 states and 13133 transitions. [2021-12-17 16:14:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:14:15,312 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 [2021-12-17 16:14:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:15,330 INFO L225 Difference]: With dead ends: 9719 [2021-12-17 16:14:15,330 INFO L226 Difference]: Without dead ends: 6620 [2021-12-17 16:14:15,334 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 [2021-12-17 16:14:15,335 INFO L933 BasicCegarLoop]: 1493 mSDtfsCounter, 10893 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10893 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:15,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10893 Valid, 2132 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:14:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6620 states. [2021-12-17 16:14:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6620 to 6593. [2021-12-17 16:14:15,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6593 states, 6576 states have (on average 1.3585766423357664) internal successors, (8934), 6592 states have internal predecessors, (8934), 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) [2021-12-17 16:14:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6593 states to 6593 states and 8934 transitions. [2021-12-17 16:14:15,572 INFO L78 Accepts]: Start accepts. Automaton has 6593 states and 8934 transitions. Word has length 65 [2021-12-17 16:14:15,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:15,574 INFO L470 AbstractCegarLoop]: Abstraction has 6593 states and 8934 transitions. [2021-12-17 16:14:15,574 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) [2021-12-17 16:14:15,574 INFO L276 IsEmpty]: Start isEmpty. Operand 6593 states and 8934 transitions. [2021-12-17 16:14:15,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-17 16:14:15,582 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:15,582 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] [2021-12-17 16:14:15,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 16:14:15,584 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)] === [2021-12-17 16:14:15,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:15,585 INFO L85 PathProgramCache]: Analyzing trace with hash -958325289, now seen corresponding path program 1 times [2021-12-17 16:14:15,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:15,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972331472] [2021-12-17 16:14:15,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:15,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:15,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:15,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972331472] [2021-12-17 16:14:15,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972331472] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:15,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:15,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:14:15,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979115443] [2021-12-17 16:14:15,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:15,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:14:15,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:15,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:14:15,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:14:15,679 INFO L87 Difference]: Start difference. First operand 6593 states and 8934 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) [2021-12-17 16:14:16,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:16,786 INFO L93 Difference]: Finished difference Result 12889 states and 17643 transitions. [2021-12-17 16:14:16,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:14:16,786 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 [2021-12-17 16:14:16,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:16,813 INFO L225 Difference]: With dead ends: 12889 [2021-12-17 16:14:16,813 INFO L226 Difference]: Without dead ends: 8503 [2021-12-17 16:14:16,819 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 [2021-12-17 16:14:16,821 INFO L933 BasicCegarLoop]: 1364 mSDtfsCounter, 9319 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9319 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:16,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9319 Valid, 1841 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 16:14:16,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8503 states. [2021-12-17 16:14:17,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8503 to 8468. [2021-12-17 16:14:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8468 states, 8451 states have (on average 1.3742752337001538) internal successors, (11614), 8467 states have internal predecessors, (11614), 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) [2021-12-17 16:14:17,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 11614 transitions. [2021-12-17 16:14:17,143 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 11614 transitions. Word has length 66 [2021-12-17 16:14:17,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:17,144 INFO L470 AbstractCegarLoop]: Abstraction has 8468 states and 11614 transitions. [2021-12-17 16:14:17,144 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) [2021-12-17 16:14:17,144 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 11614 transitions. [2021-12-17 16:14:17,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-17 16:14:17,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:17,151 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] [2021-12-17 16:14:17,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 16:14:17,151 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:17,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:17,152 INFO L85 PathProgramCache]: Analyzing trace with hash 215811001, now seen corresponding path program 1 times [2021-12-17 16:14:17,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:17,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573199562] [2021-12-17 16:14:17,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:17,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:17,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:17,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573199562] [2021-12-17 16:14:17,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573199562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:17,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:17,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:14:17,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745577151] [2021-12-17 16:14:17,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:17,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:14:17,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:17,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:14:17,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:14:17,293 INFO L87 Difference]: Start difference. First operand 8468 states and 11614 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 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) [2021-12-17 16:14:21,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:21,174 INFO L93 Difference]: Finished difference Result 19590 states and 27928 transitions. [2021-12-17 16:14:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 16:14:21,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 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 [2021-12-17 16:14:21,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:21,213 INFO L225 Difference]: With dead ends: 19590 [2021-12-17 16:14:21,214 INFO L226 Difference]: Without dead ends: 18231 [2021-12-17 16:14:21,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2021-12-17 16:14:21,244 INFO L933 BasicCegarLoop]: 1454 mSDtfsCounter, 10306 mSDsluCounter, 6151 mSDsCounter, 0 mSdLazyCounter, 8066 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10306 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 8401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 8066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:21,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10306 Valid, 7605 Invalid, 8401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 8066 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-17 16:14:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18231 states. [2021-12-17 16:14:21,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18231 to 8411. [2021-12-17 16:14:21,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8411 states, 8394 states have (on average 1.3738384560400285) internal successors, (11532), 8410 states have internal predecessors, (11532), 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) [2021-12-17 16:14:21,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8411 states to 8411 states and 11532 transitions. [2021-12-17 16:14:21,545 INFO L78 Accepts]: Start accepts. Automaton has 8411 states and 11532 transitions. Word has length 66 [2021-12-17 16:14:21,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:21,546 INFO L470 AbstractCegarLoop]: Abstraction has 8411 states and 11532 transitions. [2021-12-17 16:14:21,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 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) [2021-12-17 16:14:21,546 INFO L276 IsEmpty]: Start isEmpty. Operand 8411 states and 11532 transitions. [2021-12-17 16:14:21,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-17 16:14:21,552 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:21,553 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] [2021-12-17 16:14:21,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 16:14:21,553 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:21,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:21,553 INFO L85 PathProgramCache]: Analyzing trace with hash -531315301, now seen corresponding path program 1 times [2021-12-17 16:14:21,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:21,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434046473] [2021-12-17 16:14:21,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:21,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:21,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:21,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434046473] [2021-12-17 16:14:21,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434046473] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:21,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:21,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:14:21,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656902214] [2021-12-17 16:14:21,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:21,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 16:14:21,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:21,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 16:14:21,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-17 16:14:21,651 INFO L87 Difference]: Start difference. First operand 8411 states and 11532 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 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) [2021-12-17 16:14:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:24,046 INFO L93 Difference]: Finished difference Result 13341 states and 18889 transitions. [2021-12-17 16:14:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 16:14:24,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 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 [2021-12-17 16:14:24,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:24,082 INFO L225 Difference]: With dead ends: 13341 [2021-12-17 16:14:24,082 INFO L226 Difference]: Without dead ends: 11876 [2021-12-17 16:14:24,088 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 [2021-12-17 16:14:24,088 INFO L933 BasicCegarLoop]: 1424 mSDtfsCounter, 11592 mSDsluCounter, 4795 mSDsCounter, 0 mSdLazyCounter, 5455 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11592 SdHoareTripleChecker+Valid, 6219 SdHoareTripleChecker+Invalid, 5546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 5455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:24,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11592 Valid, 6219 Invalid, 5546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 5455 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 16:14:24,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11876 states. [2021-12-17 16:14:24,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11876 to 8260. [2021-12-17 16:14:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8260 states, 8243 states have (on average 1.3732864248453234) internal successors, (11320), 8259 states have internal predecessors, (11320), 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) [2021-12-17 16:14:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8260 states to 8260 states and 11320 transitions. [2021-12-17 16:14:24,364 INFO L78 Accepts]: Start accepts. Automaton has 8260 states and 11320 transitions. Word has length 66 [2021-12-17 16:14:24,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:24,365 INFO L470 AbstractCegarLoop]: Abstraction has 8260 states and 11320 transitions. [2021-12-17 16:14:24,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 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) [2021-12-17 16:14:24,365 INFO L276 IsEmpty]: Start isEmpty. Operand 8260 states and 11320 transitions. [2021-12-17 16:14:24,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-17 16:14:24,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:24,372 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] [2021-12-17 16:14:24,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 16:14:24,373 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:24,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:24,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1567621872, now seen corresponding path program 1 times [2021-12-17 16:14:24,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:24,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100020005] [2021-12-17 16:14:24,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:24,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:24,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:24,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100020005] [2021-12-17 16:14:24,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100020005] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:24,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:24,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:14:24,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475322827] [2021-12-17 16:14:24,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:24,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:14:24,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:24,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:14:24,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:14:24,474 INFO L87 Difference]: Start difference. First operand 8260 states and 11320 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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) [2021-12-17 16:14:26,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:26,675 INFO L93 Difference]: Finished difference Result 11812 states and 16298 transitions. [2021-12-17 16:14:26,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:14:26,676 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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 [2021-12-17 16:14:26,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:26,717 INFO L225 Difference]: With dead ends: 11812 [2021-12-17 16:14:26,718 INFO L226 Difference]: Without dead ends: 11804 [2021-12-17 16:14:26,720 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 [2021-12-17 16:14:26,722 INFO L933 BasicCegarLoop]: 1427 mSDtfsCounter, 13494 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 5838 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13494 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 6204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 5838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:26,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13494 Valid, 5917 Invalid, 6204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 5838 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 16:14:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11804 states. [2021-12-17 16:14:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11804 to 8260. [2021-12-17 16:14:27,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8260 states, 8243 states have (on average 1.373165109790125) internal successors, (11319), 8259 states have internal predecessors, (11319), 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) [2021-12-17 16:14:27,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8260 states to 8260 states and 11319 transitions. [2021-12-17 16:14:27,023 INFO L78 Accepts]: Start accepts. Automaton has 8260 states and 11319 transitions. Word has length 67 [2021-12-17 16:14:27,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:27,024 INFO L470 AbstractCegarLoop]: Abstraction has 8260 states and 11319 transitions. [2021-12-17 16:14:27,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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) [2021-12-17 16:14:27,024 INFO L276 IsEmpty]: Start isEmpty. Operand 8260 states and 11319 transitions. [2021-12-17 16:14:27,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-17 16:14:27,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:27,032 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] [2021-12-17 16:14:27,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 16:14:27,033 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)] === [2021-12-17 16:14:27,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash 435988824, now seen corresponding path program 1 times [2021-12-17 16:14:27,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:27,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110114872] [2021-12-17 16:14:27,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:27,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:27,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:27,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110114872] [2021-12-17 16:14:27,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110114872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:27,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:27,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:14:27,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854465069] [2021-12-17 16:14:27,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:27,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:14:27,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:27,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:14:27,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:14:27,170 INFO L87 Difference]: Start difference. First operand 8260 states and 11319 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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) [2021-12-17 16:14:29,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:29,274 INFO L93 Difference]: Finished difference Result 9700 states and 13330 transitions. [2021-12-17 16:14:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:14:29,276 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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 [2021-12-17 16:14:29,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:29,291 INFO L225 Difference]: With dead ends: 9700 [2021-12-17 16:14:29,291 INFO L226 Difference]: Without dead ends: 9695 [2021-12-17 16:14:29,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-12-17 16:14:29,293 INFO L933 BasicCegarLoop]: 1375 mSDtfsCounter, 9545 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 5176 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9545 SdHoareTripleChecker+Valid, 5789 SdHoareTripleChecker+Invalid, 5368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 5176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:29,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9545 Valid, 5789 Invalid, 5368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 5176 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:14:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9695 states. [2021-12-17 16:14:29,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9695 to 8260. [2021-12-17 16:14:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8260 states, 8243 states have (on average 1.3730437947349265) internal successors, (11318), 8259 states have internal predecessors, (11318), 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) [2021-12-17 16:14:29,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8260 states to 8260 states and 11318 transitions. [2021-12-17 16:14:29,640 INFO L78 Accepts]: Start accepts. Automaton has 8260 states and 11318 transitions. Word has length 67 [2021-12-17 16:14:29,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:29,641 INFO L470 AbstractCegarLoop]: Abstraction has 8260 states and 11318 transitions. [2021-12-17 16:14:29,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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) [2021-12-17 16:14:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8260 states and 11318 transitions. [2021-12-17 16:14:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-17 16:14:29,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:29,646 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] [2021-12-17 16:14:29,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 16:14:29,647 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:29,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:29,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2090357239, now seen corresponding path program 1 times [2021-12-17 16:14:29,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:29,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3248671] [2021-12-17 16:14:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:29,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:29,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:29,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3248671] [2021-12-17 16:14:29,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3248671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:29,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:29,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:14:29,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138582611] [2021-12-17 16:14:29,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:29,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:14:29,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:29,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:14:29,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:14:29,876 INFO L87 Difference]: Start difference. First operand 8260 states and 11318 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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) [2021-12-17 16:14:32,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:32,720 INFO L93 Difference]: Finished difference Result 22494 states and 32740 transitions. [2021-12-17 16:14:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-17 16:14:32,720 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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 [2021-12-17 16:14:32,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:32,752 INFO L225 Difference]: With dead ends: 22494 [2021-12-17 16:14:32,753 INFO L226 Difference]: Without dead ends: 22490 [2021-12-17 16:14:32,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=301, Invalid=1031, Unknown=0, NotChecked=0, Total=1332 [2021-12-17 16:14:32,760 INFO L933 BasicCegarLoop]: 2625 mSDtfsCounter, 17866 mSDsluCounter, 17233 mSDsCounter, 0 mSdLazyCounter, 2736 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17866 SdHoareTripleChecker+Valid, 19858 SdHoareTripleChecker+Invalid, 3057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 2736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:32,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17866 Valid, 19858 Invalid, 3057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 2736 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 16:14:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22490 states. [2021-12-17 16:14:33,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22490 to 8256. [2021-12-17 16:14:33,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8256 states, 8240 states have (on average 1.3730582524271844) internal successors, (11314), 8255 states have internal predecessors, (11314), 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) [2021-12-17 16:14:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8256 states to 8256 states and 11314 transitions. [2021-12-17 16:14:33,236 INFO L78 Accepts]: Start accepts. Automaton has 8256 states and 11314 transitions. Word has length 67 [2021-12-17 16:14:33,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:33,236 INFO L470 AbstractCegarLoop]: Abstraction has 8256 states and 11314 transitions. [2021-12-17 16:14:33,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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) [2021-12-17 16:14:33,237 INFO L276 IsEmpty]: Start isEmpty. Operand 8256 states and 11314 transitions. [2021-12-17 16:14:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-17 16:14:33,241 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:33,241 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] [2021-12-17 16:14:33,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 16:14:33,242 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:33,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:33,242 INFO L85 PathProgramCache]: Analyzing trace with hash 822338575, now seen corresponding path program 1 times [2021-12-17 16:14:33,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:33,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486480996] [2021-12-17 16:14:33,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:33,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:33,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:33,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486480996] [2021-12-17 16:14:33,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486480996] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:33,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:33,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 16:14:33,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445117020] [2021-12-17 16:14:33,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:33,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 16:14:33,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:33,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 16:14:33,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-12-17 16:14:33,536 INFO L87 Difference]: Start difference. First operand 8256 states and 11314 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 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) [2021-12-17 16:14:36,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:36,851 INFO L93 Difference]: Finished difference Result 19563 states and 28245 transitions. [2021-12-17 16:14:36,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-17 16:14:36,851 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 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 [2021-12-17 16:14:36,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:36,874 INFO L225 Difference]: With dead ends: 19563 [2021-12-17 16:14:36,874 INFO L226 Difference]: Without dead ends: 19559 [2021-12-17 16:14:36,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2021-12-17 16:14:36,880 INFO L933 BasicCegarLoop]: 2624 mSDtfsCounter, 16776 mSDsluCounter, 17847 mSDsCounter, 0 mSdLazyCounter, 2845 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16776 SdHoareTripleChecker+Valid, 20471 SdHoareTripleChecker+Invalid, 3163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:36,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16776 Valid, 20471 Invalid, 3163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2845 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:14:36,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19559 states. [2021-12-17 16:14:37,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19559 to 8252. [2021-12-17 16:14:37,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8252 states, 8237 states have (on average 1.3730727206507223) internal successors, (11310), 8251 states have internal predecessors, (11310), 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) [2021-12-17 16:14:37,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8252 states to 8252 states and 11310 transitions. [2021-12-17 16:14:37,370 INFO L78 Accepts]: Start accepts. Automaton has 8252 states and 11310 transitions. Word has length 67 [2021-12-17 16:14:37,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:37,371 INFO L470 AbstractCegarLoop]: Abstraction has 8252 states and 11310 transitions. [2021-12-17 16:14:37,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 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) [2021-12-17 16:14:37,371 INFO L276 IsEmpty]: Start isEmpty. Operand 8252 states and 11310 transitions. [2021-12-17 16:14:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-17 16:14:37,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:37,376 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] [2021-12-17 16:14:37,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 16:14:37,376 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:37,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:37,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1877034391, now seen corresponding path program 1 times [2021-12-17 16:14:37,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:37,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073270257] [2021-12-17 16:14:37,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:37,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:37,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:37,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073270257] [2021-12-17 16:14:37,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073270257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:37,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:37,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:14:37,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981181049] [2021-12-17 16:14:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:37,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:14:37,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:37,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:14:37,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:14:37,579 INFO L87 Difference]: Start difference. First operand 8252 states and 11310 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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) [2021-12-17 16:14:41,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:41,133 INFO L93 Difference]: Finished difference Result 18882 states and 27159 transitions. [2021-12-17 16:14:41,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-17 16:14:41,140 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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 [2021-12-17 16:14:41,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:41,162 INFO L225 Difference]: With dead ends: 18882 [2021-12-17 16:14:41,162 INFO L226 Difference]: Without dead ends: 18871 [2021-12-17 16:14:41,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2021-12-17 16:14:41,172 INFO L933 BasicCegarLoop]: 2617 mSDtfsCounter, 14600 mSDsluCounter, 14310 mSDsCounter, 0 mSdLazyCounter, 4062 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14600 SdHoareTripleChecker+Valid, 16927 SdHoareTripleChecker+Invalid, 4424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 4062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:41,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14600 Valid, 16927 Invalid, 4424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 4062 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 16:14:41,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18871 states. [2021-12-17 16:14:41,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18871 to 8246. [2021-12-17 16:14:41,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8246 states, 8231 states have (on average 1.3732231806584863) internal successors, (11303), 8245 states have internal predecessors, (11303), 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) [2021-12-17 16:14:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8246 states to 8246 states and 11303 transitions. [2021-12-17 16:14:41,830 INFO L78 Accepts]: Start accepts. Automaton has 8246 states and 11303 transitions. Word has length 68 [2021-12-17 16:14:41,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:41,830 INFO L470 AbstractCegarLoop]: Abstraction has 8246 states and 11303 transitions. [2021-12-17 16:14:41,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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) [2021-12-17 16:14:41,830 INFO L276 IsEmpty]: Start isEmpty. Operand 8246 states and 11303 transitions. [2021-12-17 16:14:41,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-17 16:14:41,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:41,835 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] [2021-12-17 16:14:41,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 16:14:41,836 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:41,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:41,836 INFO L85 PathProgramCache]: Analyzing trace with hash 702049040, now seen corresponding path program 1 times [2021-12-17 16:14:41,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:41,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971831138] [2021-12-17 16:14:41,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:41,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:41,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:41,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971831138] [2021-12-17 16:14:41,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971831138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:41,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:41,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:14:41,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726914412] [2021-12-17 16:14:41,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:41,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 16:14:41,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:41,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 16:14:41,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-17 16:14:41,914 INFO L87 Difference]: Start difference. First operand 8246 states and 11303 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) [2021-12-17 16:14:44,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:44,465 INFO L93 Difference]: Finished difference Result 13438 states and 19014 transitions. [2021-12-17 16:14:44,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 16:14:44,465 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 [2021-12-17 16:14:44,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:44,476 INFO L225 Difference]: With dead ends: 13438 [2021-12-17 16:14:44,476 INFO L226 Difference]: Without dead ends: 11857 [2021-12-17 16:14:44,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-17 16:14:44,480 INFO L933 BasicCegarLoop]: 1385 mSDtfsCounter, 6751 mSDsluCounter, 3221 mSDsCounter, 0 mSdLazyCounter, 4310 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6751 SdHoareTripleChecker+Valid, 4606 SdHoareTripleChecker+Invalid, 4381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 4310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:44,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6751 Valid, 4606 Invalid, 4381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 4310 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:14:44,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11857 states. [2021-12-17 16:14:44,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11857 to 8246. [2021-12-17 16:14:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8246 states, 8231 states have (on average 1.373101688737699) internal successors, (11302), 8245 states have internal predecessors, (11302), 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) [2021-12-17 16:14:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8246 states to 8246 states and 11302 transitions. [2021-12-17 16:14:44,942 INFO L78 Accepts]: Start accepts. Automaton has 8246 states and 11302 transitions. Word has length 68 [2021-12-17 16:14:44,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:44,942 INFO L470 AbstractCegarLoop]: Abstraction has 8246 states and 11302 transitions. [2021-12-17 16:14:44,942 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) [2021-12-17 16:14:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8246 states and 11302 transitions. [2021-12-17 16:14:44,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-17 16:14:44,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:44,948 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] [2021-12-17 16:14:44,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 16:14:44,948 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:44,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:44,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1625518918, now seen corresponding path program 1 times [2021-12-17 16:14:44,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:44,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026067557] [2021-12-17 16:14:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:44,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:45,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:45,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026067557] [2021-12-17 16:14:45,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026067557] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:45,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:45,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:14:45,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428970973] [2021-12-17 16:14:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:45,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:14:45,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:45,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:14:45,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:14:45,038 INFO L87 Difference]: Start difference. First operand 8246 states and 11302 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) [2021-12-17 16:14:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:48,846 INFO L93 Difference]: Finished difference Result 17850 states and 25569 transitions. [2021-12-17 16:14:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 16:14:48,847 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 [2021-12-17 16:14:48,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:48,864 INFO L225 Difference]: With dead ends: 17850 [2021-12-17 16:14:48,864 INFO L226 Difference]: Without dead ends: 16533 [2021-12-17 16:14:48,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2021-12-17 16:14:48,868 INFO L933 BasicCegarLoop]: 1483 mSDtfsCounter, 11904 mSDsluCounter, 4987 mSDsCounter, 0 mSdLazyCounter, 6261 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11904 SdHoareTripleChecker+Valid, 6470 SdHoareTripleChecker+Invalid, 6566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 6261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:48,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11904 Valid, 6470 Invalid, 6566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 6261 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 16:14:48,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16533 states. [2021-12-17 16:14:49,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16533 to 8246. [2021-12-17 16:14:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8246 states, 8231 states have (on average 1.3729801968169117) internal successors, (11301), 8245 states have internal predecessors, (11301), 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) [2021-12-17 16:14:49,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8246 states to 8246 states and 11301 transitions. [2021-12-17 16:14:49,402 INFO L78 Accepts]: Start accepts. Automaton has 8246 states and 11301 transitions. Word has length 68 [2021-12-17 16:14:49,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:49,403 INFO L470 AbstractCegarLoop]: Abstraction has 8246 states and 11301 transitions. [2021-12-17 16:14:49,403 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) [2021-12-17 16:14:49,403 INFO L276 IsEmpty]: Start isEmpty. Operand 8246 states and 11301 transitions. [2021-12-17 16:14:49,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-17 16:14:49,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:49,408 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] [2021-12-17 16:14:49,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 16:14:49,408 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:49,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1023482213, now seen corresponding path program 1 times [2021-12-17 16:14:49,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:49,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949823923] [2021-12-17 16:14:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:49,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:49,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:49,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949823923] [2021-12-17 16:14:49,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949823923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:49,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:49,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:14:49,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271307418] [2021-12-17 16:14:49,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:49,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:14:49,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:49,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:14:49,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:14:49,521 INFO L87 Difference]: Start difference. First operand 8246 states and 11301 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2021-12-17 16:14:53,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:53,093 INFO L93 Difference]: Finished difference Result 13472 states and 18894 transitions. [2021-12-17 16:14:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 16:14:53,094 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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 [2021-12-17 16:14:53,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:53,107 INFO L225 Difference]: With dead ends: 13472 [2021-12-17 16:14:53,108 INFO L226 Difference]: Without dead ends: 12169 [2021-12-17 16:14:53,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-17 16:14:53,112 INFO L933 BasicCegarLoop]: 1464 mSDtfsCounter, 6537 mSDsluCounter, 6601 mSDsCounter, 0 mSdLazyCounter, 7577 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6537 SdHoareTripleChecker+Valid, 8065 SdHoareTripleChecker+Invalid, 7743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 7577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:53,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6537 Valid, 8065 Invalid, 7743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 7577 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 16:14:53,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12169 states. [2021-12-17 16:14:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12169 to 8254. [2021-12-17 16:14:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8254 states, 8239 states have (on average 1.3731035319820366) internal successors, (11313), 8253 states have internal predecessors, (11313), 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) [2021-12-17 16:14:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8254 states to 8254 states and 11313 transitions. [2021-12-17 16:14:53,724 INFO L78 Accepts]: Start accepts. Automaton has 8254 states and 11313 transitions. Word has length 68 [2021-12-17 16:14:53,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:53,725 INFO L470 AbstractCegarLoop]: Abstraction has 8254 states and 11313 transitions. [2021-12-17 16:14:53,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2021-12-17 16:14:53,725 INFO L276 IsEmpty]: Start isEmpty. Operand 8254 states and 11313 transitions. [2021-12-17 16:14:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-17 16:14:53,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:53,730 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] [2021-12-17 16:14:53,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 16:14:53,730 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:53,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:53,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1561635764, now seen corresponding path program 1 times [2021-12-17 16:14:53,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:53,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532349542] [2021-12-17 16:14:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:53,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:53,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:53,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532349542] [2021-12-17 16:14:53,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532349542] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:53,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:53,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:14:53,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764224064] [2021-12-17 16:14:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:53,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:14:53,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:53,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:14:53,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:14:53,869 INFO L87 Difference]: Start difference. First operand 8254 states and 11313 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) [2021-12-17 16:14:58,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:14:58,415 INFO L93 Difference]: Finished difference Result 19405 states and 27673 transitions. [2021-12-17 16:14:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 16:14:58,420 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 [2021-12-17 16:14:58,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:14:58,442 INFO L225 Difference]: With dead ends: 19405 [2021-12-17 16:14:58,442 INFO L226 Difference]: Without dead ends: 18046 [2021-12-17 16:14:58,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2021-12-17 16:14:58,449 INFO L933 BasicCegarLoop]: 1530 mSDtfsCounter, 9932 mSDsluCounter, 6361 mSDsCounter, 0 mSdLazyCounter, 8090 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9932 SdHoareTripleChecker+Valid, 7891 SdHoareTripleChecker+Invalid, 8414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 8090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:14:58,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9932 Valid, 7891 Invalid, 8414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 8090 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 16:14:58,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18046 states. [2021-12-17 16:14:59,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18046 to 8246. [2021-12-17 16:14:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8246 states, 8231 states have (on average 1.3728587048961245) internal successors, (11300), 8245 states have internal predecessors, (11300), 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) [2021-12-17 16:14:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8246 states to 8246 states and 11300 transitions. [2021-12-17 16:14:59,032 INFO L78 Accepts]: Start accepts. Automaton has 8246 states and 11300 transitions. Word has length 68 [2021-12-17 16:14:59,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:14:59,032 INFO L470 AbstractCegarLoop]: Abstraction has 8246 states and 11300 transitions. [2021-12-17 16:14:59,032 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) [2021-12-17 16:14:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 8246 states and 11300 transitions. [2021-12-17 16:14:59,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-17 16:14:59,038 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:14:59,038 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] [2021-12-17 16:14:59,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 16:14:59,039 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:14:59,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:14:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash -53728106, now seen corresponding path program 1 times [2021-12-17 16:14:59,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:14:59,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209723589] [2021-12-17 16:14:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:14:59,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:14:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:14:59,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:14:59,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:14:59,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209723589] [2021-12-17 16:14:59,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209723589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:14:59,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:14:59,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:14:59,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376884724] [2021-12-17 16:14:59,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:14:59,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:14:59,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:14:59,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:14:59,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:14:59,280 INFO L87 Difference]: Start difference. First operand 8246 states and 11300 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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) [2021-12-17 16:15:04,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:04,236 INFO L93 Difference]: Finished difference Result 23895 states and 34805 transitions. [2021-12-17 16:15:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-17 16:15:04,237 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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 [2021-12-17 16:15:04,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:04,268 INFO L225 Difference]: With dead ends: 23895 [2021-12-17 16:15:04,269 INFO L226 Difference]: Without dead ends: 22377 [2021-12-17 16:15:04,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2021-12-17 16:15:04,281 INFO L933 BasicCegarLoop]: 3085 mSDtfsCounter, 16137 mSDsluCounter, 12815 mSDsCounter, 0 mSdLazyCounter, 3743 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16137 SdHoareTripleChecker+Valid, 15900 SdHoareTripleChecker+Invalid, 4111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 3743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:04,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16137 Valid, 15900 Invalid, 4111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 3743 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 16:15:04,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22377 states. [2021-12-17 16:15:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22377 to 8026. [2021-12-17 16:15:04,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8026 states, 8012 states have (on average 1.3703195207189216) internal successors, (10979), 8025 states have internal predecessors, (10979), 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) [2021-12-17 16:15:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8026 states to 8026 states and 10979 transitions. [2021-12-17 16:15:04,949 INFO L78 Accepts]: Start accepts. Automaton has 8026 states and 10979 transitions. Word has length 68 [2021-12-17 16:15:04,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:04,950 INFO L470 AbstractCegarLoop]: Abstraction has 8026 states and 10979 transitions. [2021-12-17 16:15:04,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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) [2021-12-17 16:15:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 8026 states and 10979 transitions. [2021-12-17 16:15:04,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-17 16:15:04,955 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:04,955 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] [2021-12-17 16:15:04,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 16:15:04,956 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1836776824, now seen corresponding path program 1 times [2021-12-17 16:15:04,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:04,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694396756] [2021-12-17 16:15:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:04,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:04,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:04,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694396756] [2021-12-17 16:15:04,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694396756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:04,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:04,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:15:04,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685049642] [2021-12-17 16:15:04,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:04,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:15:04,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:04,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:15:04,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:04,992 INFO L87 Difference]: Start difference. First operand 8026 states and 10979 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2021-12-17 16:15:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:05,634 INFO L93 Difference]: Finished difference Result 11782 states and 16397 transitions. [2021-12-17 16:15:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:15:05,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 [2021-12-17 16:15:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:05,642 INFO L225 Difference]: With dead ends: 11782 [2021-12-17 16:15:05,643 INFO L226 Difference]: Without dead ends: 7107 [2021-12-17 16:15:05,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:05,648 INFO L933 BasicCegarLoop]: 1981 mSDtfsCounter, 1932 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:05,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1932 Valid, 2612 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:15:05,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2021-12-17 16:15:06,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 7089. [2021-12-17 16:15:06,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 7079 states have (on average 1.384376324339596) internal successors, (9800), 7088 states have internal predecessors, (9800), 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) [2021-12-17 16:15:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 9800 transitions. [2021-12-17 16:15:06,301 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 9800 transitions. Word has length 68 [2021-12-17 16:15:06,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:06,301 INFO L470 AbstractCegarLoop]: Abstraction has 7089 states and 9800 transitions. [2021-12-17 16:15:06,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2021-12-17 16:15:06,302 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 9800 transitions. [2021-12-17 16:15:06,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-17 16:15:06,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:06,305 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] [2021-12-17 16:15:06,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 16:15:06,306 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:06,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:06,306 INFO L85 PathProgramCache]: Analyzing trace with hash 837543786, now seen corresponding path program 1 times [2021-12-17 16:15:06,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:06,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137257517] [2021-12-17 16:15:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:06,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:06,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:06,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137257517] [2021-12-17 16:15:06,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137257517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:06,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:06,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:15:06,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205067093] [2021-12-17 16:15:06,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:06,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:15:06,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:06,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:15:06,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:06,358 INFO L87 Difference]: Start difference. First operand 7089 states and 9800 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-12-17 16:15:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:07,226 INFO L93 Difference]: Finished difference Result 11409 states and 16067 transitions. [2021-12-17 16:15:07,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:15:07,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 [2021-12-17 16:15:07,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:07,235 INFO L225 Difference]: With dead ends: 11409 [2021-12-17 16:15:07,235 INFO L226 Difference]: Without dead ends: 6937 [2021-12-17 16:15:07,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:07,240 INFO L933 BasicCegarLoop]: 1573 mSDtfsCounter, 1552 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:07,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1552 Valid, 2054 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:15:07,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6937 states. [2021-12-17 16:15:08,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6937 to 6929. [2021-12-17 16:15:08,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6922 states have (on average 1.4045073678127709) internal successors, (9722), 6928 states have internal predecessors, (9722), 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) [2021-12-17 16:15:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 9722 transitions. [2021-12-17 16:15:08,043 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 9722 transitions. Word has length 69 [2021-12-17 16:15:08,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:08,044 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 9722 transitions. [2021-12-17 16:15:08,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-12-17 16:15:08,044 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 9722 transitions. [2021-12-17 16:15:08,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-17 16:15:08,054 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:08,054 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] [2021-12-17 16:15:08,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 16:15:08,055 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:08,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:08,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1076361939, now seen corresponding path program 1 times [2021-12-17 16:15:08,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:08,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83452930] [2021-12-17 16:15:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:08,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:08,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:08,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83452930] [2021-12-17 16:15:08,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83452930] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:08,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:08,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:15:08,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297038955] [2021-12-17 16:15:08,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:08,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:15:08,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:08,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:15:08,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:08,101 INFO L87 Difference]: Start difference. First operand 6929 states and 9722 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-12-17 16:15:09,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:09,194 INFO L93 Difference]: Finished difference Result 11347 states and 16571 transitions. [2021-12-17 16:15:09,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:15:09,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 [2021-12-17 16:15:09,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:09,202 INFO L225 Difference]: With dead ends: 11347 [2021-12-17 16:15:09,202 INFO L226 Difference]: Without dead ends: 7996 [2021-12-17 16:15:09,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:09,206 INFO L933 BasicCegarLoop]: 1650 mSDtfsCounter, 948 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:09,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 2396 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:15:09,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7996 states. [2021-12-17 16:15:09,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7996 to 6562. [2021-12-17 16:15:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6562 states, 6555 states have (on average 1.4297482837528603) internal successors, (9372), 6561 states have internal predecessors, (9372), 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) [2021-12-17 16:15:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6562 states to 6562 states and 9372 transitions. [2021-12-17 16:15:10,001 INFO L78 Accepts]: Start accepts. Automaton has 6562 states and 9372 transitions. Word has length 69 [2021-12-17 16:15:10,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:10,001 INFO L470 AbstractCegarLoop]: Abstraction has 6562 states and 9372 transitions. [2021-12-17 16:15:10,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-12-17 16:15:10,002 INFO L276 IsEmpty]: Start isEmpty. Operand 6562 states and 9372 transitions. [2021-12-17 16:15:10,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-17 16:15:10,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:10,005 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] [2021-12-17 16:15:10,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 16:15:10,005 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:10,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:10,006 INFO L85 PathProgramCache]: Analyzing trace with hash 208509551, now seen corresponding path program 1 times [2021-12-17 16:15:10,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:10,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108420745] [2021-12-17 16:15:10,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:10,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:10,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:10,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108420745] [2021-12-17 16:15:10,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108420745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:10,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:10,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:15:10,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326104511] [2021-12-17 16:15:10,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:10,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:15:10,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:10,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:15:10,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:10,049 INFO L87 Difference]: Start difference. First operand 6562 states and 9372 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-12-17 16:15:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:11,501 INFO L93 Difference]: Finished difference Result 14540 states and 21279 transitions. [2021-12-17 16:15:11,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:15:11,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 [2021-12-17 16:15:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:11,514 INFO L225 Difference]: With dead ends: 14540 [2021-12-17 16:15:11,514 INFO L226 Difference]: Without dead ends: 10469 [2021-12-17 16:15:11,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:11,520 INFO L933 BasicCegarLoop]: 1736 mSDtfsCounter, 983 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 3041 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:11,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 3041 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:15:11,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10469 states. [2021-12-17 16:15:12,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10469 to 10461. [2021-12-17 16:15:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10461 states, 10454 states have (on average 1.4372488999426056) internal successors, (15025), 10460 states have internal predecessors, (15025), 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) [2021-12-17 16:15:12,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 15025 transitions. [2021-12-17 16:15:12,965 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 15025 transitions. Word has length 69 [2021-12-17 16:15:12,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:12,965 INFO L470 AbstractCegarLoop]: Abstraction has 10461 states and 15025 transitions. [2021-12-17 16:15:12,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-12-17 16:15:12,965 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 15025 transitions. [2021-12-17 16:15:12,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-17 16:15:12,968 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:12,969 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] [2021-12-17 16:15:12,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 16:15:12,969 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:12,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1908328951, now seen corresponding path program 1 times [2021-12-17 16:15:12,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:12,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793226992] [2021-12-17 16:15:12,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:12,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:13,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:13,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:13,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793226992] [2021-12-17 16:15:13,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793226992] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:13,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:13,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:15:13,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092005427] [2021-12-17 16:15:13,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:13,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:15:13,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:13,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:15:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:13,008 INFO L87 Difference]: Start difference. First operand 10461 states and 15025 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-12-17 16:15:15,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:15,772 INFO L93 Difference]: Finished difference Result 24316 states and 35643 transitions. [2021-12-17 16:15:15,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:15:15,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 [2021-12-17 16:15:15,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:15,794 INFO L225 Difference]: With dead ends: 24316 [2021-12-17 16:15:15,795 INFO L226 Difference]: Without dead ends: 16605 [2021-12-17 16:15:15,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:15,808 INFO L933 BasicCegarLoop]: 1781 mSDtfsCounter, 883 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:15,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 2996 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:15:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16605 states. [2021-12-17 16:15:18,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16605 to 16597. [2021-12-17 16:15:18,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16597 states, 16590 states have (on average 1.4374924653405665) internal successors, (23848), 16596 states have internal predecessors, (23848), 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) [2021-12-17 16:15:18,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16597 states to 16597 states and 23848 transitions. [2021-12-17 16:15:18,357 INFO L78 Accepts]: Start accepts. Automaton has 16597 states and 23848 transitions. Word has length 69 [2021-12-17 16:15:18,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:18,357 INFO L470 AbstractCegarLoop]: Abstraction has 16597 states and 23848 transitions. [2021-12-17 16:15:18,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-12-17 16:15:18,357 INFO L276 IsEmpty]: Start isEmpty. Operand 16597 states and 23848 transitions. [2021-12-17 16:15:18,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-17 16:15:18,362 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:18,362 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] [2021-12-17 16:15:18,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 16:15:18,362 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:18,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:18,363 INFO L85 PathProgramCache]: Analyzing trace with hash -736488177, now seen corresponding path program 1 times [2021-12-17 16:15:18,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:18,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093327810] [2021-12-17 16:15:18,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:18,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:18,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:18,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:18,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093327810] [2021-12-17 16:15:18,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093327810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:18,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:18,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:15:18,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521138725] [2021-12-17 16:15:18,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:18,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:15:18,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:18,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:15:18,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:18,396 INFO L87 Difference]: Start difference. First operand 16597 states and 23848 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2021-12-17 16:15:21,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:21,308 INFO L93 Difference]: Finished difference Result 32974 states and 48111 transitions. [2021-12-17 16:15:21,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:15:21,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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 [2021-12-17 16:15:21,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:21,334 INFO L225 Difference]: With dead ends: 32974 [2021-12-17 16:15:21,334 INFO L226 Difference]: Without dead ends: 18271 [2021-12-17 16:15:21,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:21,354 INFO L933 BasicCegarLoop]: 1517 mSDtfsCounter, 1412 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:21,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1412 Valid, 2132 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:15:21,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18271 states. [2021-12-17 16:15:23,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18271 to 14664. [2021-12-17 16:15:23,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14664 states, 14657 states have (on average 1.4563689704578018) internal successors, (21346), 14663 states have internal predecessors, (21346), 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) [2021-12-17 16:15:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14664 states to 14664 states and 21346 transitions. [2021-12-17 16:15:23,881 INFO L78 Accepts]: Start accepts. Automaton has 14664 states and 21346 transitions. Word has length 70 [2021-12-17 16:15:23,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:23,882 INFO L470 AbstractCegarLoop]: Abstraction has 14664 states and 21346 transitions. [2021-12-17 16:15:23,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2021-12-17 16:15:23,882 INFO L276 IsEmpty]: Start isEmpty. Operand 14664 states and 21346 transitions. [2021-12-17 16:15:23,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-17 16:15:23,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:23,885 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] [2021-12-17 16:15:23,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-17 16:15:23,887 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:23,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:23,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1726166193, now seen corresponding path program 1 times [2021-12-17 16:15:23,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:23,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731655724] [2021-12-17 16:15:23,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:23,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:23,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:23,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:23,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731655724] [2021-12-17 16:15:23,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731655724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:23,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:23,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:15:23,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933179355] [2021-12-17 16:15:23,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:23,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:15:23,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:23,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:15:23,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:23,938 INFO L87 Difference]: Start difference. First operand 14664 states and 21346 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2021-12-17 16:15:26,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:26,841 INFO L93 Difference]: Finished difference Result 30304 states and 44583 transitions. [2021-12-17 16:15:26,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:15:26,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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 [2021-12-17 16:15:26,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:26,863 INFO L225 Difference]: With dead ends: 30304 [2021-12-17 16:15:26,864 INFO L226 Difference]: Without dead ends: 16624 [2021-12-17 16:15:26,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:15:26,885 INFO L933 BasicCegarLoop]: 1428 mSDtfsCounter, 1175 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:26,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 1973 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:15:26,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16624 states. [2021-12-17 16:15:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16624 to 13294. [2021-12-17 16:15:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13294 states, 13287 states have (on average 1.4691051403627606) internal successors, (19520), 13293 states have internal predecessors, (19520), 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) [2021-12-17 16:15:29,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13294 states to 13294 states and 19520 transitions. [2021-12-17 16:15:29,118 INFO L78 Accepts]: Start accepts. Automaton has 13294 states and 19520 transitions. Word has length 70 [2021-12-17 16:15:29,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:29,118 INFO L470 AbstractCegarLoop]: Abstraction has 13294 states and 19520 transitions. [2021-12-17 16:15:29,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2021-12-17 16:15:29,121 INFO L276 IsEmpty]: Start isEmpty. Operand 13294 states and 19520 transitions. [2021-12-17 16:15:29,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-17 16:15:29,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:29,124 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, 1] [2021-12-17 16:15:29,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 16:15:29,124 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:29,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:29,124 INFO L85 PathProgramCache]: Analyzing trace with hash 246166670, now seen corresponding path program 1 times [2021-12-17 16:15:29,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:29,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355611337] [2021-12-17 16:15:29,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:29,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:29,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:29,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:29,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355611337] [2021-12-17 16:15:29,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355611337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:29,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:29,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:15:29,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161714731] [2021-12-17 16:15:29,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:29,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:15:29,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:29,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:15:29,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:15:29,257 INFO L87 Difference]: Start difference. First operand 13294 states and 19520 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:15:37,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:37,970 INFO L93 Difference]: Finished difference Result 37088 states and 54674 transitions. [2021-12-17 16:15:37,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 16:15:37,972 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2021-12-17 16:15:37,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:38,021 INFO L225 Difference]: With dead ends: 37088 [2021-12-17 16:15:38,022 INFO L226 Difference]: Without dead ends: 36818 [2021-12-17 16:15:38,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-12-17 16:15:38,033 INFO L933 BasicCegarLoop]: 1031 mSDtfsCounter, 4980 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 4420 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4980 SdHoareTripleChecker+Valid, 5096 SdHoareTripleChecker+Invalid, 4548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 4420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:38,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4980 Valid, 5096 Invalid, 4548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 4420 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:15:38,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36818 states. [2021-12-17 16:15:40,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36818 to 13294. [2021-12-17 16:15:40,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13294 states, 13287 states have (on average 1.4690298788289304) internal successors, (19519), 13293 states have internal predecessors, (19519), 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) [2021-12-17 16:15:40,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13294 states to 13294 states and 19519 transitions. [2021-12-17 16:15:40,539 INFO L78 Accepts]: Start accepts. Automaton has 13294 states and 19519 transitions. Word has length 71 [2021-12-17 16:15:40,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:40,539 INFO L470 AbstractCegarLoop]: Abstraction has 13294 states and 19519 transitions. [2021-12-17 16:15:40,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:15:40,540 INFO L276 IsEmpty]: Start isEmpty. Operand 13294 states and 19519 transitions. [2021-12-17 16:15:40,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-17 16:15:40,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:40,542 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, 1] [2021-12-17 16:15:40,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 16:15:40,542 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:40,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:40,543 INFO L85 PathProgramCache]: Analyzing trace with hash -168991978, now seen corresponding path program 1 times [2021-12-17 16:15:40,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:40,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839996687] [2021-12-17 16:15:40,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:40,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:40,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:40,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839996687] [2021-12-17 16:15:40,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839996687] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:40,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:40,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:15:40,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500130296] [2021-12-17 16:15:40,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:40,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:15:40,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:40,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:15:40,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:15:40,636 INFO L87 Difference]: Start difference. First operand 13294 states and 19519 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:15:44,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:44,985 INFO L93 Difference]: Finished difference Result 17395 states and 25375 transitions. [2021-12-17 16:15:44,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:15:44,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2021-12-17 16:15:44,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:45,006 INFO L225 Difference]: With dead ends: 17395 [2021-12-17 16:15:45,006 INFO L226 Difference]: Without dead ends: 17194 [2021-12-17 16:15:45,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:15:45,012 INFO L933 BasicCegarLoop]: 823 mSDtfsCounter, 5261 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5261 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:45,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5261 Valid, 3440 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 2786 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 16:15:45,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17194 states. [2021-12-17 16:15:47,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17194 to 13294. [2021-12-17 16:15:47,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13294 states, 13287 states have (on average 1.4689546172951005) internal successors, (19518), 13293 states have internal predecessors, (19518), 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) [2021-12-17 16:15:47,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13294 states to 13294 states and 19518 transitions. [2021-12-17 16:15:47,292 INFO L78 Accepts]: Start accepts. Automaton has 13294 states and 19518 transitions. Word has length 71 [2021-12-17 16:15:47,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:47,293 INFO L470 AbstractCegarLoop]: Abstraction has 13294 states and 19518 transitions. [2021-12-17 16:15:47,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:15:47,293 INFO L276 IsEmpty]: Start isEmpty. Operand 13294 states and 19518 transitions. [2021-12-17 16:15:47,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-17 16:15:47,295 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:47,295 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, 1] [2021-12-17 16:15:47,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-17 16:15:47,296 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:47,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:47,297 INFO L85 PathProgramCache]: Analyzing trace with hash -331643833, now seen corresponding path program 1 times [2021-12-17 16:15:47,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:47,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238063365] [2021-12-17 16:15:47,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:47,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:47,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:47,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238063365] [2021-12-17 16:15:47,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238063365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:47,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:47,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:15:47,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521453638] [2021-12-17 16:15:47,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:47,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:15:47,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:47,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:15:47,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:15:47,419 INFO L87 Difference]: Start difference. First operand 13294 states and 19518 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:15:54,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:15:54,590 INFO L93 Difference]: Finished difference Result 31916 states and 47150 transitions. [2021-12-17 16:15:54,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 16:15:54,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2021-12-17 16:15:54,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:15:54,633 INFO L225 Difference]: With dead ends: 31916 [2021-12-17 16:15:54,633 INFO L226 Difference]: Without dead ends: 31696 [2021-12-17 16:15:54,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-12-17 16:15:54,643 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 4805 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 3534 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 4160 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 3534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:15:54,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4805 Valid, 4160 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 3534 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:15:54,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31696 states. [2021-12-17 16:15:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31696 to 13294. [2021-12-17 16:15:57,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13294 states, 13287 states have (on average 1.4688793557612705) internal successors, (19517), 13293 states have internal predecessors, (19517), 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) [2021-12-17 16:15:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13294 states to 13294 states and 19517 transitions. [2021-12-17 16:15:57,157 INFO L78 Accepts]: Start accepts. Automaton has 13294 states and 19517 transitions. Word has length 71 [2021-12-17 16:15:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:15:57,158 INFO L470 AbstractCegarLoop]: Abstraction has 13294 states and 19517 transitions. [2021-12-17 16:15:57,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:15:57,158 INFO L276 IsEmpty]: Start isEmpty. Operand 13294 states and 19517 transitions. [2021-12-17 16:15:57,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-17 16:15:57,160 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:15:57,160 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, 1] [2021-12-17 16:15:57,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 16:15:57,160 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:15:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:15:57,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1936211158, now seen corresponding path program 1 times [2021-12-17 16:15:57,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:15:57,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737325203] [2021-12-17 16:15:57,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:15:57,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:15:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:15:57,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:15:57,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:15:57,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737325203] [2021-12-17 16:15:57,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737325203] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:15:57,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:15:57,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:15:57,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259908045] [2021-12-17 16:15:57,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:15:57,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:15:57,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:15:57,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:15:57,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:15:57,238 INFO L87 Difference]: Start difference. First operand 13294 states and 19517 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:16:01,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:16:01,562 INFO L93 Difference]: Finished difference Result 17395 states and 25373 transitions. [2021-12-17 16:16:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:16:01,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2021-12-17 16:16:01,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:16:01,585 INFO L225 Difference]: With dead ends: 17395 [2021-12-17 16:16:01,585 INFO L226 Difference]: Without dead ends: 17194 [2021-12-17 16:16:01,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:16:01,589 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 3487 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 2802 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3487 SdHoareTripleChecker+Valid, 3492 SdHoareTripleChecker+Invalid, 2896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:16:01,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3487 Valid, 3492 Invalid, 2896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2802 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 16:16:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17194 states. [2021-12-17 16:16:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17194 to 13294. [2021-12-17 16:16:04,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13294 states, 13287 states have (on average 1.4688040942274403) internal successors, (19516), 13293 states have internal predecessors, (19516), 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) [2021-12-17 16:16:04,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13294 states to 13294 states and 19516 transitions. [2021-12-17 16:16:04,084 INFO L78 Accepts]: Start accepts. Automaton has 13294 states and 19516 transitions. Word has length 71 [2021-12-17 16:16:04,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:16:04,084 INFO L470 AbstractCegarLoop]: Abstraction has 13294 states and 19516 transitions. [2021-12-17 16:16:04,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:16:04,084 INFO L276 IsEmpty]: Start isEmpty. Operand 13294 states and 19516 transitions. [2021-12-17 16:16:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-17 16:16:04,086 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:16:04,087 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, 1] [2021-12-17 16:16:04,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-17 16:16:04,087 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:16:04,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:16:04,087 INFO L85 PathProgramCache]: Analyzing trace with hash 648906819, now seen corresponding path program 1 times [2021-12-17 16:16:04,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:16:04,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333548493] [2021-12-17 16:16:04,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:16:04,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:16:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:16:04,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:16:04,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:16:04,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333548493] [2021-12-17 16:16:04,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333548493] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:16:04,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:16:04,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:16:04,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998517831] [2021-12-17 16:16:04,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:16:04,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:16:04,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:16:04,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:16:04,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:16:04,182 INFO L87 Difference]: Start difference. First operand 13294 states and 19516 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:16:11,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:16:11,489 INFO L93 Difference]: Finished difference Result 31916 states and 47147 transitions. [2021-12-17 16:16:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 16:16:11,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2021-12-17 16:16:11,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:16:11,529 INFO L225 Difference]: With dead ends: 31916 [2021-12-17 16:16:11,530 INFO L226 Difference]: Without dead ends: 31696 [2021-12-17 16:16:11,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-12-17 16:16:11,540 INFO L933 BasicCegarLoop]: 921 mSDtfsCounter, 4725 mSDsluCounter, 3615 mSDsCounter, 0 mSdLazyCounter, 3873 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4725 SdHoareTripleChecker+Valid, 4536 SdHoareTripleChecker+Invalid, 3988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 3873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:16:11,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4725 Valid, 4536 Invalid, 3988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 3873 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:16:11,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31696 states. [2021-12-17 16:16:14,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31696 to 13294. [2021-12-17 16:16:14,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13294 states, 13287 states have (on average 1.4687288326936103) internal successors, (19515), 13293 states have internal predecessors, (19515), 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) [2021-12-17 16:16:14,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13294 states to 13294 states and 19515 transitions. [2021-12-17 16:16:14,071 INFO L78 Accepts]: Start accepts. Automaton has 13294 states and 19515 transitions. Word has length 71 [2021-12-17 16:16:14,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:16:14,071 INFO L470 AbstractCegarLoop]: Abstraction has 13294 states and 19515 transitions. [2021-12-17 16:16:14,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:16:14,071 INFO L276 IsEmpty]: Start isEmpty. Operand 13294 states and 19515 transitions. [2021-12-17 16:16:14,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-17 16:16:14,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:16:14,073 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, 1] [2021-12-17 16:16:14,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-17 16:16:14,074 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:16:14,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:16:14,074 INFO L85 PathProgramCache]: Analyzing trace with hash -465375336, now seen corresponding path program 1 times [2021-12-17 16:16:14,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:16:14,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930809001] [2021-12-17 16:16:14,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:16:14,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:16:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:16:14,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:16:14,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:16:14,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930809001] [2021-12-17 16:16:14,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930809001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:16:14,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:16:14,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:16:14,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619270601] [2021-12-17 16:16:14,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:16:14,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:16:14,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:16:14,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:16:14,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:16:14,159 INFO L87 Difference]: Start difference. First operand 13294 states and 19515 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:16:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:16:18,686 INFO L93 Difference]: Finished difference Result 17395 states and 25371 transitions. [2021-12-17 16:16:18,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:16:18,687 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2021-12-17 16:16:18,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:16:18,710 INFO L225 Difference]: With dead ends: 17395 [2021-12-17 16:16:18,711 INFO L226 Difference]: Without dead ends: 17194 [2021-12-17 16:16:18,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:16:18,716 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 3392 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 2936 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 3027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:16:18,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3392 Valid, 3671 Invalid, 3027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2936 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 16:16:18,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17194 states. [2021-12-17 16:16:21,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17194 to 13294. [2021-12-17 16:16:21,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13294 states, 13287 states have (on average 1.4686535711597803) internal successors, (19514), 13293 states have internal predecessors, (19514), 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) [2021-12-17 16:16:21,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13294 states to 13294 states and 19514 transitions. [2021-12-17 16:16:21,203 INFO L78 Accepts]: Start accepts. Automaton has 13294 states and 19514 transitions. Word has length 71 [2021-12-17 16:16:21,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:16:21,204 INFO L470 AbstractCegarLoop]: Abstraction has 13294 states and 19514 transitions. [2021-12-17 16:16:21,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 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) [2021-12-17 16:16:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 13294 states and 19514 transitions. [2021-12-17 16:16:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-17 16:16:21,206 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:16:21,206 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, 1, 1] [2021-12-17 16:16:21,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-17 16:16:21,207 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:16:21,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:16:21,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1829069700, now seen corresponding path program 1 times [2021-12-17 16:16:21,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:16:21,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117475160] [2021-12-17 16:16:21,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:16:21,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:16:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:16:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:16:21,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:16:21,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117475160] [2021-12-17 16:16:21,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117475160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:16:21,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:16:21,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:16:21,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49418393] [2021-12-17 16:16:21,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:16:21,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:16:21,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:16:21,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:16:21,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:16:21,244 INFO L87 Difference]: Start difference. First operand 13294 states and 19514 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-12-17 16:16:24,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:16:24,861 INFO L93 Difference]: Finished difference Result 31000 states and 46207 transitions. [2021-12-17 16:16:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:16:24,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-12-17 16:16:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:16:24,885 INFO L225 Difference]: With dead ends: 31000 [2021-12-17 16:16:24,885 INFO L226 Difference]: Without dead ends: 19299 [2021-12-17 16:16:24,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:16:24,897 INFO L933 BasicCegarLoop]: 1405 mSDtfsCounter, 870 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:16:24,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 1949 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:16:24,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19299 states. [2021-12-17 16:16:27,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19299 to 15525. [2021-12-17 16:16:27,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15525 states, 15518 states have (on average 1.464492847016368) internal successors, (22726), 15524 states have internal predecessors, (22726), 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) [2021-12-17 16:16:27,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15525 states to 15525 states and 22726 transitions. [2021-12-17 16:16:27,856 INFO L78 Accepts]: Start accepts. Automaton has 15525 states and 22726 transitions. Word has length 72 [2021-12-17 16:16:27,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:16:27,856 INFO L470 AbstractCegarLoop]: Abstraction has 15525 states and 22726 transitions. [2021-12-17 16:16:27,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-12-17 16:16:27,856 INFO L276 IsEmpty]: Start isEmpty. Operand 15525 states and 22726 transitions. [2021-12-17 16:16:27,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-17 16:16:27,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:16:27,858 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, 1, 1] [2021-12-17 16:16:27,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-17 16:16:27,859 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:16:27,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:16:27,859 INFO L85 PathProgramCache]: Analyzing trace with hash 751781022, now seen corresponding path program 1 times [2021-12-17 16:16:27,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:16:27,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99973372] [2021-12-17 16:16:27,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:16:27,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:16:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:16:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:16:27,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:16:27,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99973372] [2021-12-17 16:16:27,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99973372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:16:27,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:16:27,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:16:27,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602745422] [2021-12-17 16:16:27,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:16:27,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:16:27,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:16:27,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:16:27,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:16:27,940 INFO L87 Difference]: Start difference. First operand 15525 states and 22726 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 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) [2021-12-17 16:16:33,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:16:33,131 INFO L93 Difference]: Finished difference Result 19901 states and 28913 transitions. [2021-12-17 16:16:33,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:16:33,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 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 72 [2021-12-17 16:16:33,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:16:33,152 INFO L225 Difference]: With dead ends: 19901 [2021-12-17 16:16:33,152 INFO L226 Difference]: Without dead ends: 19833 [2021-12-17 16:16:33,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:16:33,155 INFO L933 BasicCegarLoop]: 813 mSDtfsCounter, 6791 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 2784 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6791 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:16:33,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6791 Valid, 3413 Invalid, 2958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2784 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 16:16:33,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19833 states. [2021-12-17 16:16:36,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19833 to 15520. [2021-12-17 16:16:36,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15520 states, 15513 states have (on average 1.4643847095984013) internal successors, (22717), 15519 states have internal predecessors, (22717), 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) [2021-12-17 16:16:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15520 states to 15520 states and 22717 transitions. [2021-12-17 16:16:36,143 INFO L78 Accepts]: Start accepts. Automaton has 15520 states and 22717 transitions. Word has length 72 [2021-12-17 16:16:36,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:16:36,143 INFO L470 AbstractCegarLoop]: Abstraction has 15520 states and 22717 transitions. [2021-12-17 16:16:36,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 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) [2021-12-17 16:16:36,144 INFO L276 IsEmpty]: Start isEmpty. Operand 15520 states and 22717 transitions. [2021-12-17 16:16:36,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-17 16:16:36,146 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:16:36,146 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, 1, 1, 1, 1] [2021-12-17 16:16:36,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-17 16:16:36,146 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:16:36,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:16:36,147 INFO L85 PathProgramCache]: Analyzing trace with hash -547570985, now seen corresponding path program 1 times [2021-12-17 16:16:36,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:16:36,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282791464] [2021-12-17 16:16:36,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:16:36,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:16:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:16:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:16:36,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:16:36,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282791464] [2021-12-17 16:16:36,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282791464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:16:36,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:16:36,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 16:16:36,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623773543] [2021-12-17 16:16:36,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:16:36,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 16:16:36,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:16:36,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 16:16:36,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 16:16:36,390 INFO L87 Difference]: Start difference. First operand 15520 states and 22717 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 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) [2021-12-17 16:16:48,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:16:48,518 INFO L93 Difference]: Finished difference Result 45945 states and 67457 transitions. [2021-12-17 16:16:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-17 16:16:48,519 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 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 74 [2021-12-17 16:16:48,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:16:48,585 INFO L225 Difference]: With dead ends: 45945 [2021-12-17 16:16:48,585 INFO L226 Difference]: Without dead ends: 45878 [2021-12-17 16:16:48,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2021-12-17 16:16:48,597 INFO L933 BasicCegarLoop]: 1411 mSDtfsCounter, 10798 mSDsluCounter, 8124 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10798 SdHoareTripleChecker+Valid, 9535 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:16:48,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10798 Valid, 9535 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 16:16:48,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45878 states. [2021-12-17 16:16:51,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45878 to 15516. [2021-12-17 16:16:51,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15516 states, 15510 states have (on average 1.4643455834945196) internal successors, (22712), 15515 states have internal predecessors, (22712), 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) [2021-12-17 16:16:51,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15516 states to 15516 states and 22712 transitions. [2021-12-17 16:16:51,921 INFO L78 Accepts]: Start accepts. Automaton has 15516 states and 22712 transitions. Word has length 74 [2021-12-17 16:16:51,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:16:51,921 INFO L470 AbstractCegarLoop]: Abstraction has 15516 states and 22712 transitions. [2021-12-17 16:16:51,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 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) [2021-12-17 16:16:51,922 INFO L276 IsEmpty]: Start isEmpty. Operand 15516 states and 22712 transitions. [2021-12-17 16:16:51,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-17 16:16:51,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:16:51,924 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, 1, 1, 1, 1] [2021-12-17 16:16:51,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-17 16:16:51,924 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:16:51,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:16:51,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1959708385, now seen corresponding path program 1 times [2021-12-17 16:16:51,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:16:51,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480372486] [2021-12-17 16:16:51,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:16:51,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:16:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:16:52,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:16:52,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:16:52,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480372486] [2021-12-17 16:16:52,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480372486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:16:52,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:16:52,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-12-17 16:16:52,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483434141] [2021-12-17 16:16:52,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:16:52,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-17 16:16:52,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:16:52,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-17 16:16:52,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:16:52,276 INFO L87 Difference]: Start difference. First operand 15516 states and 22712 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-12-17 16:17:04,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:17:04,409 INFO L93 Difference]: Finished difference Result 35376 states and 51657 transitions. [2021-12-17 16:17:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-17 16:17:04,411 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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 74 [2021-12-17 16:17:04,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:17:04,455 INFO L225 Difference]: With dead ends: 35376 [2021-12-17 16:17:04,455 INFO L226 Difference]: Without dead ends: 35304 [2021-12-17 16:17:04,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=232, Invalid=1174, Unknown=0, NotChecked=0, Total=1406 [2021-12-17 16:17:04,465 INFO L933 BasicCegarLoop]: 1499 mSDtfsCounter, 8158 mSDsluCounter, 19237 mSDsCounter, 0 mSdLazyCounter, 8128 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8158 SdHoareTripleChecker+Valid, 20736 SdHoareTripleChecker+Invalid, 8299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 8128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:17:04,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8158 Valid, 20736 Invalid, 8299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 8128 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-17 16:17:04,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35304 states. [2021-12-17 16:17:07,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35304 to 15534. [2021-12-17 16:17:07,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15534 states, 15528 states have (on average 1.464064914992272) internal successors, (22734), 15533 states have internal predecessors, (22734), 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) [2021-12-17 16:17:07,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15534 states to 15534 states and 22734 transitions. [2021-12-17 16:17:07,999 INFO L78 Accepts]: Start accepts. Automaton has 15534 states and 22734 transitions. Word has length 74 [2021-12-17 16:17:07,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:17:07,999 INFO L470 AbstractCegarLoop]: Abstraction has 15534 states and 22734 transitions. [2021-12-17 16:17:07,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-12-17 16:17:08,000 INFO L276 IsEmpty]: Start isEmpty. Operand 15534 states and 22734 transitions. [2021-12-17 16:17:08,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-17 16:17:08,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:17:08,002 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, 1, 1, 1, 1] [2021-12-17 16:17:08,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-17 16:17:08,002 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:17:08,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:17:08,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1100799, now seen corresponding path program 1 times [2021-12-17 16:17:08,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:17:08,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368757200] [2021-12-17 16:17:08,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:17:08,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:17:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:17:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:17:08,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:17:08,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368757200] [2021-12-17 16:17:08,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368757200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:17:08,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:17:08,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-12-17 16:17:08,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259935451] [2021-12-17 16:17:08,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:17:08,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-17 16:17:08,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:17:08,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-17 16:17:08,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:17:08,361 INFO L87 Difference]: Start difference. First operand 15534 states and 22734 transitions. Second operand has 22 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 22 states have internal predecessors, (74), 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) [2021-12-17 16:17:20,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:17:20,385 INFO L93 Difference]: Finished difference Result 35368 states and 51647 transitions. [2021-12-17 16:17:20,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-17 16:17:20,386 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 22 states have internal predecessors, (74), 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 74 [2021-12-17 16:17:20,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:17:20,429 INFO L225 Difference]: With dead ends: 35368 [2021-12-17 16:17:20,429 INFO L226 Difference]: Without dead ends: 35295 [2021-12-17 16:17:20,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=283, Invalid=1439, Unknown=0, NotChecked=0, Total=1722 [2021-12-17 16:17:20,439 INFO L933 BasicCegarLoop]: 1487 mSDtfsCounter, 10584 mSDsluCounter, 17226 mSDsCounter, 0 mSdLazyCounter, 7466 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10584 SdHoareTripleChecker+Valid, 18713 SdHoareTripleChecker+Invalid, 7698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 7466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:17:20,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10584 Valid, 18713 Invalid, 7698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 7466 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-17 16:17:20,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35295 states. [2021-12-17 16:17:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35295 to 15540. [2021-12-17 16:17:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15540 states, 15534 states have (on average 1.4639500450624436) internal successors, (22741), 15539 states have internal predecessors, (22741), 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) [2021-12-17 16:17:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15540 states to 15540 states and 22741 transitions. [2021-12-17 16:17:23,729 INFO L78 Accepts]: Start accepts. Automaton has 15540 states and 22741 transitions. Word has length 74 [2021-12-17 16:17:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:17:23,730 INFO L470 AbstractCegarLoop]: Abstraction has 15540 states and 22741 transitions. [2021-12-17 16:17:23,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 22 states have internal predecessors, (74), 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) [2021-12-17 16:17:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 15540 states and 22741 transitions. [2021-12-17 16:17:23,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-17 16:17:23,733 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:17:23,733 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, 1, 1, 1, 1] [2021-12-17 16:17:23,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-17 16:17:23,733 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:17:23,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:17:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash 179128677, now seen corresponding path program 1 times [2021-12-17 16:17:23,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:17:23,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880920275] [2021-12-17 16:17:23,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:17:23,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:17:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:17:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:17:23,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:17:23,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880920275] [2021-12-17 16:17:23,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880920275] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:17:23,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:17:23,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 16:17:23,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212212917] [2021-12-17 16:17:23,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:17:23,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 16:17:23,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:17:23,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 16:17:23,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-17 16:17:23,908 INFO L87 Difference]: Start difference. First operand 15540 states and 22741 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 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) [2021-12-17 16:17:30,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:17:30,787 INFO L93 Difference]: Finished difference Result 26614 states and 38997 transitions. [2021-12-17 16:17:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:17:30,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 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 74 [2021-12-17 16:17:30,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:17:30,820 INFO L225 Difference]: With dead ends: 26614 [2021-12-17 16:17:30,821 INFO L226 Difference]: Without dead ends: 26480 [2021-12-17 16:17:30,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-12-17 16:17:30,826 INFO L933 BasicCegarLoop]: 1325 mSDtfsCounter, 5658 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5658 SdHoareTripleChecker+Valid, 4801 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:17:30,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5658 Valid, 4801 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:17:30,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26480 states. [2021-12-17 16:17:34,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26480 to 15469. [2021-12-17 16:17:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15469 states, 15466 states have (on average 1.4643734643734643) internal successors, (22648), 15468 states have internal predecessors, (22648), 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) [2021-12-17 16:17:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15469 states to 15469 states and 22648 transitions. [2021-12-17 16:17:34,223 INFO L78 Accepts]: Start accepts. Automaton has 15469 states and 22648 transitions. Word has length 74 [2021-12-17 16:17:34,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:17:34,224 INFO L470 AbstractCegarLoop]: Abstraction has 15469 states and 22648 transitions. [2021-12-17 16:17:34,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 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) [2021-12-17 16:17:34,224 INFO L276 IsEmpty]: Start isEmpty. Operand 15469 states and 22648 transitions. [2021-12-17 16:17:34,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-17 16:17:34,226 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:17:34,226 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, 1, 1, 1, 1, 1] [2021-12-17 16:17:34,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-17 16:17:34,227 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:17:34,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:17:34,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1287191800, now seen corresponding path program 1 times [2021-12-17 16:17:34,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:17:34,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034809228] [2021-12-17 16:17:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:17:34,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:17:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:17:34,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:17:34,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:17:34,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034809228] [2021-12-17 16:17:34,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034809228] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:17:34,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:17:34,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:17:34,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382216383] [2021-12-17 16:17:34,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:17:34,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:17:34,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:17:34,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:17:34,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:17:34,437 INFO L87 Difference]: Start difference. First operand 15469 states and 22648 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:17:43,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:17:43,243 INFO L93 Difference]: Finished difference Result 31733 states and 46367 transitions. [2021-12-17 16:17:43,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 16:17:43,243 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-12-17 16:17:43,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:17:43,295 INFO L225 Difference]: With dead ends: 31733 [2021-12-17 16:17:43,296 INFO L226 Difference]: Without dead ends: 31617 [2021-12-17 16:17:43,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 16:17:43,310 INFO L933 BasicCegarLoop]: 1629 mSDtfsCounter, 6400 mSDsluCounter, 6492 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6400 SdHoareTripleChecker+Valid, 8121 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:17:43,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6400 Valid, 8121 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 16:17:43,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31617 states. [2021-12-17 16:17:46,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31617 to 15409. [2021-12-17 16:17:46,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15409 states, 15408 states have (on average 1.4649532710280373) internal successors, (22572), 15408 states have internal predecessors, (22572), 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) [2021-12-17 16:17:46,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15409 states to 15409 states and 22572 transitions. [2021-12-17 16:17:46,974 INFO L78 Accepts]: Start accepts. Automaton has 15409 states and 22572 transitions. Word has length 75 [2021-12-17 16:17:46,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:17:46,974 INFO L470 AbstractCegarLoop]: Abstraction has 15409 states and 22572 transitions. [2021-12-17 16:17:46,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:17:46,974 INFO L276 IsEmpty]: Start isEmpty. Operand 15409 states and 22572 transitions. [2021-12-17 16:17:46,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-17 16:17:46,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:17:46,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:17:46,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-17 16:17:46,978 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:17:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:17:46,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1888870268, now seen corresponding path program 1 times [2021-12-17 16:17:46,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:17:46,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052224834] [2021-12-17 16:17:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:17:46,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:17:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:17:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:17:47,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:17:47,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052224834] [2021-12-17 16:17:47,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052224834] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:17:47,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:17:47,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 16:17:47,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793709304] [2021-12-17 16:17:47,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:17:47,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 16:17:47,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:17:47,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 16:17:47,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 16:17:47,029 INFO L87 Difference]: Start difference. First operand 15409 states and 22572 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:17:57,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:17:57,137 INFO L93 Difference]: Finished difference Result 58444 states and 86338 transitions. [2021-12-17 16:17:57,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 16:17:57,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-12-17 16:17:57,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:17:57,197 INFO L225 Difference]: With dead ends: 58444 [2021-12-17 16:17:57,198 INFO L226 Difference]: Without dead ends: 44362 [2021-12-17 16:17:57,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:17:57,214 INFO L933 BasicCegarLoop]: 1200 mSDtfsCounter, 4325 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4325 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:17:57,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4325 Valid, 2621 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:17:57,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44362 states. [2021-12-17 16:18:04,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44362 to 28714. [2021-12-17 16:18:04,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28714 states, 28713 states have (on average 1.4573538118622227) internal successors, (41845), 28713 states have internal predecessors, (41845), 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) [2021-12-17 16:18:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28714 states to 28714 states and 41845 transitions. [2021-12-17 16:18:04,236 INFO L78 Accepts]: Start accepts. Automaton has 28714 states and 41845 transitions. Word has length 80 [2021-12-17 16:18:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:18:04,236 INFO L470 AbstractCegarLoop]: Abstraction has 28714 states and 41845 transitions. [2021-12-17 16:18:04,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:18:04,237 INFO L276 IsEmpty]: Start isEmpty. Operand 28714 states and 41845 transitions. [2021-12-17 16:18:04,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:18:04,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:18:04,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:18:04,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-17 16:18:04,242 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:18:04,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:18:04,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1040205076, now seen corresponding path program 1 times [2021-12-17 16:18:04,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:18:04,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93243928] [2021-12-17 16:18:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:18:04,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:18:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:18:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:18:04,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:18:04,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93243928] [2021-12-17 16:18:04,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93243928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:18:04,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:18:04,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 16:18:04,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933125562] [2021-12-17 16:18:04,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:18:04,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 16:18:04,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:18:04,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 16:18:04,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-17 16:18:04,315 INFO L87 Difference]: Start difference. First operand 28714 states and 41845 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:18:09,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:18:09,968 INFO L93 Difference]: Finished difference Result 48296 states and 70415 transitions. [2021-12-17 16:18:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 16:18:09,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-17 16:18:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:18:09,994 INFO L225 Difference]: With dead ends: 48296 [2021-12-17 16:18:09,994 INFO L226 Difference]: Without dead ends: 20892 [2021-12-17 16:18:10,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-17 16:18:10,014 INFO L933 BasicCegarLoop]: 1210 mSDtfsCounter, 1576 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:18:10,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1576 Valid, 2224 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:18:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20892 states. [2021-12-17 16:18:15,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20892 to 20886. [2021-12-17 16:18:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20886 states, 20885 states have (on average 1.4425664352406034) internal successors, (30128), 20885 states have internal predecessors, (30128), 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) [2021-12-17 16:18:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20886 states to 20886 states and 30128 transitions. [2021-12-17 16:18:15,605 INFO L78 Accepts]: Start accepts. Automaton has 20886 states and 30128 transitions. Word has length 81 [2021-12-17 16:18:15,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:18:15,605 INFO L470 AbstractCegarLoop]: Abstraction has 20886 states and 30128 transitions. [2021-12-17 16:18:15,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:18:15,605 INFO L276 IsEmpty]: Start isEmpty. Operand 20886 states and 30128 transitions. [2021-12-17 16:18:15,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-17 16:18:15,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:18:15,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:18:15,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-17 16:18:15,611 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:18:15,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:18:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1762869610, now seen corresponding path program 1 times [2021-12-17 16:18:15,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:18:15,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891418769] [2021-12-17 16:18:15,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:18:15,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:18:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:18:15,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:18:15,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:18:15,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891418769] [2021-12-17 16:18:15,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891418769] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:18:15,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:18:15,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:18:15,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23684062] [2021-12-17 16:18:15,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:18:15,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:18:15,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:18:15,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:18:15,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:18:15,670 INFO L87 Difference]: Start difference. First operand 20886 states and 30128 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:18:25,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:18:25,823 INFO L93 Difference]: Finished difference Result 58584 states and 84906 transitions. [2021-12-17 16:18:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:18:25,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-17 16:18:25,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:18:25,887 INFO L225 Difference]: With dead ends: 58584 [2021-12-17 16:18:25,888 INFO L226 Difference]: Without dead ends: 38950 [2021-12-17 16:18:25,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:18:25,912 INFO L933 BasicCegarLoop]: 1211 mSDtfsCounter, 769 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:18:25,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 1619 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:18:25,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38950 states. [2021-12-17 16:18:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38950 to 36996. [2021-12-17 16:18:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36996 states, 36995 states have (on average 1.4405460197323963) internal successors, (53293), 36995 states have internal predecessors, (53293), 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) [2021-12-17 16:18:35,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36996 states to 36996 states and 53293 transitions. [2021-12-17 16:18:35,790 INFO L78 Accepts]: Start accepts. Automaton has 36996 states and 53293 transitions. Word has length 83 [2021-12-17 16:18:35,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:18:35,791 INFO L470 AbstractCegarLoop]: Abstraction has 36996 states and 53293 transitions. [2021-12-17 16:18:35,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:18:35,791 INFO L276 IsEmpty]: Start isEmpty. Operand 36996 states and 53293 transitions. [2021-12-17 16:18:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-17 16:18:35,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:18:35,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:18:35,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-17 16:18:35,828 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:18:35,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:18:35,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2024336630, now seen corresponding path program 1 times [2021-12-17 16:18:35,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:18:35,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993635216] [2021-12-17 16:18:35,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:18:35,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:18:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:18:35,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:18:35,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:18:35,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993635216] [2021-12-17 16:18:35,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993635216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:18:35,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:18:35,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:18:35,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639763190] [2021-12-17 16:18:35,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:18:35,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:18:35,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:18:35,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:18:35,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:18:35,864 INFO L87 Difference]: Start difference. First operand 36996 states and 53293 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:18:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:18:54,394 INFO L93 Difference]: Finished difference Result 105576 states and 152239 transitions. [2021-12-17 16:18:54,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:18:54,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-17 16:18:54,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:18:54,507 INFO L225 Difference]: With dead ends: 105576 [2021-12-17 16:18:54,507 INFO L226 Difference]: Without dead ends: 69832 [2021-12-17 16:18:54,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:18:54,543 INFO L933 BasicCegarLoop]: 1200 mSDtfsCounter, 682 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:18:54,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [682 Valid, 1687 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:18:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69832 states. [2021-12-17 16:19:12,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69832 to 65926. [2021-12-17 16:19:12,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65926 states, 65925 states have (on average 1.4336442927569208) internal successors, (94513), 65925 states have internal predecessors, (94513), 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) [2021-12-17 16:19:12,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65926 states to 65926 states and 94513 transitions. [2021-12-17 16:19:12,505 INFO L78 Accepts]: Start accepts. Automaton has 65926 states and 94513 transitions. Word has length 83 [2021-12-17 16:19:12,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:19:12,506 INFO L470 AbstractCegarLoop]: Abstraction has 65926 states and 94513 transitions. [2021-12-17 16:19:12,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:19:12,506 INFO L276 IsEmpty]: Start isEmpty. Operand 65926 states and 94513 transitions. [2021-12-17 16:19:12,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-17 16:19:12,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:19:12,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:19:12,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-17 16:19:12,511 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:19:12,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:19:12,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1604392140, now seen corresponding path program 1 times [2021-12-17 16:19:12,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:19:12,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423429865] [2021-12-17 16:19:12,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:19:12,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:19:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:19:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:19:12,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:19:12,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423429865] [2021-12-17 16:19:12,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423429865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:19:12,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:19:12,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:19:12,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610046540] [2021-12-17 16:19:12,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:19:12,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:19:12,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:19:12,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:19:12,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:19:12,592 INFO L87 Difference]: Start difference. First operand 65926 states and 94513 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:19:48,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:19:48,270 INFO L93 Difference]: Finished difference Result 189458 states and 271187 transitions. [2021-12-17 16:19:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:19:48,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-12-17 16:19:48,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:19:48,519 INFO L225 Difference]: With dead ends: 189458 [2021-12-17 16:19:48,519 INFO L226 Difference]: Without dead ends: 124784 [2021-12-17 16:19:48,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:19:48,609 INFO L933 BasicCegarLoop]: 1181 mSDtfsCounter, 562 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:19:48,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 1764 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:19:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124784 states. [2021-12-17 16:20:21,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124784 to 116974. [2021-12-17 16:20:21,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116974 states, 116973 states have (on average 1.4220803091311671) internal successors, (166345), 116973 states have internal predecessors, (166345), 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) [2021-12-17 16:20:22,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116974 states to 116974 states and 166345 transitions. [2021-12-17 16:20:22,091 INFO L78 Accepts]: Start accepts. Automaton has 116974 states and 166345 transitions. Word has length 84 [2021-12-17 16:20:22,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:20:22,091 INFO L470 AbstractCegarLoop]: Abstraction has 116974 states and 166345 transitions. [2021-12-17 16:20:22,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:20:22,092 INFO L276 IsEmpty]: Start isEmpty. Operand 116974 states and 166345 transitions. [2021-12-17 16:20:22,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-17 16:20:22,094 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:20:22,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:20:22,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-17 16:20:22,095 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-17 16:20:22,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:20:22,096 INFO L85 PathProgramCache]: Analyzing trace with hash -852060589, now seen corresponding path program 1 times [2021-12-17 16:20:22,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:20:22,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012631789] [2021-12-17 16:20:22,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:20:22,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:20:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:20:22,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:20:22,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:20:22,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012631789] [2021-12-17 16:20:22,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012631789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:20:22,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:20:22,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 16:20:22,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626225627] [2021-12-17 16:20:22,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:20:22,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 16:20:22,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:20:22,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 16:20:22,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 16:20:22,155 INFO L87 Difference]: Start difference. First operand 116974 states and 166345 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2021-12-17 16:21:31,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:21:31,562 INFO L93 Difference]: Finished difference Result 245622 states and 344545 transitions. [2021-12-17 16:21:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 16:21:31,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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 86 [2021-12-17 16:21:31,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:21:32,016 INFO L225 Difference]: With dead ends: 245622 [2021-12-17 16:21:32,016 INFO L226 Difference]: Without dead ends: 245620 [2021-12-17 16:21:32,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:21:32,080 INFO L933 BasicCegarLoop]: 1220 mSDtfsCounter, 1207 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:21:32,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 4968 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:21:32,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245620 states.