/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:50:23,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:50:23,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:50:23,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:50:23,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:50:23,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:50:23,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:50:23,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:50:23,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:50:23,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:50:23,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:50:23,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:50:23,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:50:23,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:50:23,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:50:23,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:50:23,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:50:23,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:50:23,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:50:23,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:50:23,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:50:23,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:50:23,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:50:23,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:50:23,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:50:23,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:50:23,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:50:23,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:50:23,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:50:23,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:50:23,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:50:23,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:50:23,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:50:23,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:50:23,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:50:23,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:50:23,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:50:23,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:50:23,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:50:23,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:50:23,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:50:23,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:50:23,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:50:23,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:50:23,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:50:23,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:50:23,553 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:50:23,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:50:23,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:50:23,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:50:23,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:50:23,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:50:23,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:50:23,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:50:23,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:50:23,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:50:23,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:50:23,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:50:23,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:50:23,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:50:23,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:50:23,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:50:23,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:50:23,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:50:23,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:50:23,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:50:23,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:50:23,560 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:50:23,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:50:23,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:50:23,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:50:23,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:50:23,997 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:50:23,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-12-22 08:50:24,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed5e06e02/608198a6a67f4088ad0ae275caa0b603/FLAG26df6b39c [2020-12-22 08:50:25,031 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:50:25,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-12-22 08:50:25,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed5e06e02/608198a6a67f4088ad0ae275caa0b603/FLAG26df6b39c [2020-12-22 08:50:25,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed5e06e02/608198a6a67f4088ad0ae275caa0b603 [2020-12-22 08:50:25,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:50:25,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:50:25,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:50:25,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:50:25,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:50:25,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:50:25" (1/1) ... [2020-12-22 08:50:25,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c4258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:25, skipping insertion in model container [2020-12-22 08:50:25,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:50:25" (1/1) ... [2020-12-22 08:50:25,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:50:25,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:50:26,294 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[13779,13792] [2020-12-22 08:50:26,390 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18503,18516] [2020-12-22 08:50:26,410 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[19795,19808] [2020-12-22 08:50:26,419 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20553,20566] [2020-12-22 08:50:26,434 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22216,22229] [2020-12-22 08:50:26,443 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22974,22987] [2020-12-22 08:50:26,454 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24103,24116] [2020-12-22 08:50:26,475 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[26728,26741] [2020-12-22 08:50:26,484 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27489,27502] [2020-12-22 08:50:26,495 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[28621,28634] [2020-12-22 08:50:26,513 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[30712,30725] [2020-12-22 08:50:26,543 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[34807,34820] [2020-12-22 08:50:26,552 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35568,35581] [2020-12-22 08:50:26,562 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[36661,36674] [2020-12-22 08:50:26,580 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[38713,38726] [2020-12-22 08:50:26,610 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42445,42458] [2020-12-22 08:50:26,657 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[49623,49636] [2020-12-22 08:50:26,665 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50384,50397] [2020-12-22 08:50:26,674 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51516,51529] [2020-12-22 08:50:26,689 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53607,53620] [2020-12-22 08:50:26,711 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57168,57181] [2020-12-22 08:50:26,739 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63166,63179] [2020-12-22 08:50:27,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:50:27,132 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:50:27,210 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[13779,13792] [2020-12-22 08:50:27,227 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18503,18516] [2020-12-22 08:50:27,234 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[19795,19808] [2020-12-22 08:50:27,240 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20553,20566] [2020-12-22 08:50:27,255 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22216,22229] [2020-12-22 08:50:27,260 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22974,22987] [2020-12-22 08:50:27,267 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24103,24116] [2020-12-22 08:50:27,310 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[26728,26741] [2020-12-22 08:50:27,316 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27489,27502] [2020-12-22 08:50:27,324 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[28621,28634] [2020-12-22 08:50:27,339 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[30712,30725] [2020-12-22 08:50:27,354 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[34807,34820] [2020-12-22 08:50:27,359 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35568,35581] [2020-12-22 08:50:27,364 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[36661,36674] [2020-12-22 08:50:27,373 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[38713,38726] [2020-12-22 08:50:27,389 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42445,42458] [2020-12-22 08:50:27,428 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[49623,49636] [2020-12-22 08:50:27,433 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50384,50397] [2020-12-22 08:50:27,439 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51516,51529] [2020-12-22 08:50:27,448 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53607,53620] [2020-12-22 08:50:27,466 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57168,57181] [2020-12-22 08:50:27,487 WARN L226 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63166,63179] [2020-12-22 08:50:27,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:50:27,914 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:50:27,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27 WrapperNode [2020-12-22 08:50:27,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:50:27,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:50:27,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:50:27,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:50:27,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... [2020-12-22 08:50:27,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... [2020-12-22 08:50:28,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:50:28,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:50:28,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:50:28,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:50:28,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... [2020-12-22 08:50:28,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... [2020-12-22 08:50:28,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... [2020-12-22 08:50:28,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... [2020-12-22 08:50:28,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... [2020-12-22 08:50:28,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... [2020-12-22 08:50:28,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... [2020-12-22 08:50:28,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:50:28,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:50:28,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:50:28,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:50:28,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:50:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:50:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:50:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:50:28,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:50:32,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:50:32,967 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:50:32,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:50:32 BoogieIcfgContainer [2020-12-22 08:50:32,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:50:32,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:50:32,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:50:32,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:50:32,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:50:25" (1/3) ... [2020-12-22 08:50:32,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1557f21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:50:32, skipping insertion in model container [2020-12-22 08:50:32,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:50:27" (2/3) ... [2020-12-22 08:50:32,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1557f21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:50:32, skipping insertion in model container [2020-12-22 08:50:32,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:50:32" (3/3) ... [2020-12-22 08:50:32,980 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-12-22 08:50:32,987 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:50:32,993 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-12-22 08:50:33,014 INFO L253 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-12-22 08:50:33,048 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:50:33,048 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:50:33,049 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:50:33,049 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:50:33,049 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:50:33,049 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:50:33,049 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:50:33,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:50:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states. [2020-12-22 08:50:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 08:50:33,115 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:33,116 INFO L422 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] [2020-12-22 08:50:33,117 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:33,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:33,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1995797141, now seen corresponding path program 1 times [2020-12-22 08:50:33,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:33,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438050033] [2020-12-22 08:50:33,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:33,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438050033] [2020-12-22 08:50:33,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:33,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:50:33,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337890021] [2020-12-22 08:50:33,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:50:33,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:33,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:50:33,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:50:33,831 INFO L87 Difference]: Start difference. First operand 1131 states. Second operand 5 states. [2020-12-22 08:50:35,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:35,178 INFO L93 Difference]: Finished difference Result 1715 states and 3012 transitions. [2020-12-22 08:50:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:50:35,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2020-12-22 08:50:35,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:35,205 INFO L225 Difference]: With dead ends: 1715 [2020-12-22 08:50:35,205 INFO L226 Difference]: Without dead ends: 968 [2020-12-22 08:50:35,213 INFO L677 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 [2020-12-22 08:50:35,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2020-12-22 08:50:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2020-12-22 08:50:35,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2020-12-22 08:50:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1217 transitions. [2020-12-22 08:50:35,369 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1217 transitions. Word has length 86 [2020-12-22 08:50:35,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:35,371 INFO L481 AbstractCegarLoop]: Abstraction has 968 states and 1217 transitions. [2020-12-22 08:50:35,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:50:35,371 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1217 transitions. [2020-12-22 08:50:35,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 08:50:35,378 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:35,378 INFO L422 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, 1] [2020-12-22 08:50:35,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:50:35,380 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:35,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:35,381 INFO L82 PathProgramCache]: Analyzing trace with hash -355333293, now seen corresponding path program 1 times [2020-12-22 08:50:35,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:35,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216760280] [2020-12-22 08:50:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:35,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:35,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216760280] [2020-12-22 08:50:35,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:35,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:50:35,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962406825] [2020-12-22 08:50:35,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:50:35,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:35,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:50:35,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:50:35,757 INFO L87 Difference]: Start difference. First operand 968 states and 1217 transitions. Second operand 6 states. [2020-12-22 08:50:36,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:36,806 INFO L93 Difference]: Finished difference Result 1889 states and 2479 transitions. [2020-12-22 08:50:36,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:50:36,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-12-22 08:50:36,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:36,814 INFO L225 Difference]: With dead ends: 1889 [2020-12-22 08:50:36,814 INFO L226 Difference]: Without dead ends: 1141 [2020-12-22 08:50:36,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:50:36,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2020-12-22 08:50:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1061. [2020-12-22 08:50:36,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2020-12-22 08:50:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1429 transitions. [2020-12-22 08:50:36,867 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1429 transitions. Word has length 87 [2020-12-22 08:50:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:36,868 INFO L481 AbstractCegarLoop]: Abstraction has 1061 states and 1429 transitions. [2020-12-22 08:50:36,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:50:36,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1429 transitions. [2020-12-22 08:50:36,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 08:50:36,871 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:36,871 INFO L422 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, 1, 1] [2020-12-22 08:50:36,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:50:36,872 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:36,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:36,873 INFO L82 PathProgramCache]: Analyzing trace with hash 643484234, now seen corresponding path program 1 times [2020-12-22 08:50:36,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:36,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656130712] [2020-12-22 08:50:36,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:37,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656130712] [2020-12-22 08:50:37,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:37,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:50:37,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86076985] [2020-12-22 08:50:37,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:50:37,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:37,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:50:37,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:50:37,026 INFO L87 Difference]: Start difference. First operand 1061 states and 1429 transitions. Second operand 6 states. [2020-12-22 08:50:37,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:37,971 INFO L93 Difference]: Finished difference Result 2323 states and 3184 transitions. [2020-12-22 08:50:37,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:50:37,972 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-12-22 08:50:37,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:37,981 INFO L225 Difference]: With dead ends: 2323 [2020-12-22 08:50:37,981 INFO L226 Difference]: Without dead ends: 1418 [2020-12-22 08:50:37,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:50:37,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2020-12-22 08:50:38,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1338. [2020-12-22 08:50:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1338 states. [2020-12-22 08:50:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1849 transitions. [2020-12-22 08:50:38,062 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1849 transitions. Word has length 88 [2020-12-22 08:50:38,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:38,062 INFO L481 AbstractCegarLoop]: Abstraction has 1338 states and 1849 transitions. [2020-12-22 08:50:38,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:50:38,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1849 transitions. [2020-12-22 08:50:38,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-22 08:50:38,066 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:38,066 INFO L422 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, 1, 1, 1] [2020-12-22 08:50:38,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:50:38,067 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:38,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:38,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1607996472, now seen corresponding path program 1 times [2020-12-22 08:50:38,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:38,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098556437] [2020-12-22 08:50:38,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:38,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098556437] [2020-12-22 08:50:38,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:38,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:50:38,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381676132] [2020-12-22 08:50:38,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:50:38,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:38,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:50:38,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:50:38,201 INFO L87 Difference]: Start difference. First operand 1338 states and 1849 transitions. Second operand 6 states. [2020-12-22 08:50:39,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:39,178 INFO L93 Difference]: Finished difference Result 3221 states and 4520 transitions. [2020-12-22 08:50:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:50:39,179 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-12-22 08:50:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:39,191 INFO L225 Difference]: With dead ends: 3221 [2020-12-22 08:50:39,191 INFO L226 Difference]: Without dead ends: 1995 [2020-12-22 08:50:39,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:50:39,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2020-12-22 08:50:39,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1915. [2020-12-22 08:50:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2020-12-22 08:50:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2715 transitions. [2020-12-22 08:50:39,311 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2715 transitions. Word has length 89 [2020-12-22 08:50:39,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:39,311 INFO L481 AbstractCegarLoop]: Abstraction has 1915 states and 2715 transitions. [2020-12-22 08:50:39,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:50:39,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2715 transitions. [2020-12-22 08:50:39,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 08:50:39,315 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:39,315 INFO L422 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, 1, 1, 1, 1] [2020-12-22 08:50:39,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:50:39,316 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:39,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:39,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1199910331, now seen corresponding path program 1 times [2020-12-22 08:50:39,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:39,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613779583] [2020-12-22 08:50:39,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:39,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:39,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613779583] [2020-12-22 08:50:39,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:39,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:50:39,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087413540] [2020-12-22 08:50:39,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:50:39,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:39,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:50:39,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:50:39,428 INFO L87 Difference]: Start difference. First operand 1915 states and 2715 transitions. Second operand 5 states. [2020-12-22 08:50:40,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:40,304 INFO L93 Difference]: Finished difference Result 3718 states and 5315 transitions. [2020-12-22 08:50:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:50:40,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2020-12-22 08:50:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:40,319 INFO L225 Difference]: With dead ends: 3718 [2020-12-22 08:50:40,320 INFO L226 Difference]: Without dead ends: 1887 [2020-12-22 08:50:40,323 INFO L677 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 [2020-12-22 08:50:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2020-12-22 08:50:40,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1887. [2020-12-22 08:50:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-12-22 08:50:40,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2677 transitions. [2020-12-22 08:50:40,486 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2677 transitions. Word has length 90 [2020-12-22 08:50:40,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:40,487 INFO L481 AbstractCegarLoop]: Abstraction has 1887 states and 2677 transitions. [2020-12-22 08:50:40,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:50:40,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2677 transitions. [2020-12-22 08:50:40,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 08:50:40,492 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:40,492 INFO L422 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, 1, 1, 1, 1, 1] [2020-12-22 08:50:40,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:50:40,493 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:40,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:40,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1894204153, now seen corresponding path program 1 times [2020-12-22 08:50:40,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:40,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048829014] [2020-12-22 08:50:40,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:40,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:40,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048829014] [2020-12-22 08:50:40,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:40,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:50:40,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143386958] [2020-12-22 08:50:40,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:50:40,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:40,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:50:40,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:50:40,620 INFO L87 Difference]: Start difference. First operand 1887 states and 2677 transitions. Second operand 5 states. [2020-12-22 08:50:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:41,364 INFO L93 Difference]: Finished difference Result 3690 states and 5269 transitions. [2020-12-22 08:50:41,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:50:41,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-12-22 08:50:41,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:41,375 INFO L225 Difference]: With dead ends: 3690 [2020-12-22 08:50:41,375 INFO L226 Difference]: Without dead ends: 1870 [2020-12-22 08:50:41,379 INFO L677 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 [2020-12-22 08:50:41,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2020-12-22 08:50:41,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1870. [2020-12-22 08:50:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-12-22 08:50:41,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2651 transitions. [2020-12-22 08:50:41,497 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2651 transitions. Word has length 91 [2020-12-22 08:50:41,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:41,498 INFO L481 AbstractCegarLoop]: Abstraction has 1870 states and 2651 transitions. [2020-12-22 08:50:41,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:50:41,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2651 transitions. [2020-12-22 08:50:41,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:50:41,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:41,501 INFO L422 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, 1, 1, 1, 1, 1, 1] [2020-12-22 08:50:41,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:50:41,502 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:41,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:41,502 INFO L82 PathProgramCache]: Analyzing trace with hash 471449544, now seen corresponding path program 1 times [2020-12-22 08:50:41,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:41,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901740854] [2020-12-22 08:50:41,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:41,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:41,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901740854] [2020-12-22 08:50:41,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:41,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:50:41,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853724447] [2020-12-22 08:50:41,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:50:41,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:41,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:50:41,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:50:41,829 INFO L87 Difference]: Start difference. First operand 1870 states and 2651 transitions. Second operand 9 states. [2020-12-22 08:50:44,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:44,319 INFO L93 Difference]: Finished difference Result 4990 states and 7223 transitions. [2020-12-22 08:50:44,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:50:44,320 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-12-22 08:50:44,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:44,347 INFO L225 Difference]: With dead ends: 4990 [2020-12-22 08:50:44,347 INFO L226 Difference]: Without dead ends: 4323 [2020-12-22 08:50:44,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:50:44,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2020-12-22 08:50:44,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 1870. [2020-12-22 08:50:44,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-12-22 08:50:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2650 transitions. [2020-12-22 08:50:44,548 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2650 transitions. Word has length 92 [2020-12-22 08:50:44,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:44,548 INFO L481 AbstractCegarLoop]: Abstraction has 1870 states and 2650 transitions. [2020-12-22 08:50:44,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:50:44,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2650 transitions. [2020-12-22 08:50:44,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:50:44,552 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:44,554 INFO L422 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, 1, 1, 1, 1, 1, 1] [2020-12-22 08:50:44,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:50:44,555 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:44,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:44,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1530881816, now seen corresponding path program 1 times [2020-12-22 08:50:44,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:44,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252747578] [2020-12-22 08:50:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:44,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252747578] [2020-12-22 08:50:44,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:44,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:50:44,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959216747] [2020-12-22 08:50:44,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:50:44,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:44,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:50:44,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:50:44,812 INFO L87 Difference]: Start difference. First operand 1870 states and 2650 transitions. Second operand 9 states. [2020-12-22 08:50:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:46,883 INFO L93 Difference]: Finished difference Result 3916 states and 5632 transitions. [2020-12-22 08:50:46,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:50:46,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-12-22 08:50:46,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:46,901 INFO L225 Difference]: With dead ends: 3916 [2020-12-22 08:50:46,901 INFO L226 Difference]: Without dead ends: 3118 [2020-12-22 08:50:46,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:50:46,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2020-12-22 08:50:47,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 1870. [2020-12-22 08:50:47,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-12-22 08:50:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2649 transitions. [2020-12-22 08:50:47,096 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2649 transitions. Word has length 92 [2020-12-22 08:50:47,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:47,097 INFO L481 AbstractCegarLoop]: Abstraction has 1870 states and 2649 transitions. [2020-12-22 08:50:47,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:50:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2649 transitions. [2020-12-22 08:50:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:50:47,101 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:47,101 INFO L422 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, 1, 1, 1, 1, 1, 1] [2020-12-22 08:50:47,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:50:47,101 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:47,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:47,102 INFO L82 PathProgramCache]: Analyzing trace with hash 889427447, now seen corresponding path program 1 times [2020-12-22 08:50:47,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:47,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907914325] [2020-12-22 08:50:47,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:47,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907914325] [2020-12-22 08:50:47,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:47,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:50:47,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924537418] [2020-12-22 08:50:47,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:50:47,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:47,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:50:47,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:50:47,308 INFO L87 Difference]: Start difference. First operand 1870 states and 2649 transitions. Second operand 8 states. [2020-12-22 08:50:48,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:48,873 INFO L93 Difference]: Finished difference Result 3324 states and 4663 transitions. [2020-12-22 08:50:48,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:50:48,874 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2020-12-22 08:50:48,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:48,886 INFO L225 Difference]: With dead ends: 3324 [2020-12-22 08:50:48,886 INFO L226 Difference]: Without dead ends: 2308 [2020-12-22 08:50:48,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:50:48,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2020-12-22 08:50:49,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 1506. [2020-12-22 08:50:49,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:50:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2118 transitions. [2020-12-22 08:50:49,052 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2118 transitions. Word has length 92 [2020-12-22 08:50:49,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:49,052 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2118 transitions. [2020-12-22 08:50:49,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:50:49,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2118 transitions. [2020-12-22 08:50:49,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:50:49,057 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:49,057 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:50:49,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:50:49,058 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:49,058 INFO L82 PathProgramCache]: Analyzing trace with hash -709696546, now seen corresponding path program 1 times [2020-12-22 08:50:49,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:49,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262351588] [2020-12-22 08:50:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:49,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:49,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262351588] [2020-12-22 08:50:49,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:49,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:50:49,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517210092] [2020-12-22 08:50:49,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:50:49,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:49,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:50:49,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:50:49,307 INFO L87 Difference]: Start difference. First operand 1506 states and 2118 transitions. Second operand 9 states. [2020-12-22 08:50:51,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:51,220 INFO L93 Difference]: Finished difference Result 3213 states and 4626 transitions. [2020-12-22 08:50:51,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:50:51,221 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:50:51,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:51,233 INFO L225 Difference]: With dead ends: 3213 [2020-12-22 08:50:51,234 INFO L226 Difference]: Without dead ends: 2382 [2020-12-22 08:50:51,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:50:51,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2020-12-22 08:50:51,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 1506. [2020-12-22 08:50:51,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:50:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2117 transitions. [2020-12-22 08:50:51,396 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2117 transitions. Word has length 94 [2020-12-22 08:50:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:51,396 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2117 transitions. [2020-12-22 08:50:51,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:50:51,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2117 transitions. [2020-12-22 08:50:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:50:51,399 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:51,399 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:50:51,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:50:51,400 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:51,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:51,400 INFO L82 PathProgramCache]: Analyzing trace with hash -904842275, now seen corresponding path program 1 times [2020-12-22 08:50:51,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:51,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702920082] [2020-12-22 08:50:51,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:51,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702920082] [2020-12-22 08:50:51,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:51,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:50:51,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457326807] [2020-12-22 08:50:51,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:50:51,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:51,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:50:51,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:50:51,600 INFO L87 Difference]: Start difference. First operand 1506 states and 2117 transitions. Second operand 9 states. [2020-12-22 08:50:54,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:54,018 INFO L93 Difference]: Finished difference Result 4297 states and 6212 transitions. [2020-12-22 08:50:54,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:50:54,019 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:50:54,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:54,035 INFO L225 Difference]: With dead ends: 4297 [2020-12-22 08:50:54,035 INFO L226 Difference]: Without dead ends: 3691 [2020-12-22 08:50:54,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:50:54,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2020-12-22 08:50:54,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 1506. [2020-12-22 08:50:54,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:50:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2116 transitions. [2020-12-22 08:50:54,266 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2116 transitions. Word has length 94 [2020-12-22 08:50:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:54,266 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2116 transitions. [2020-12-22 08:50:54,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:50:54,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2116 transitions. [2020-12-22 08:50:54,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:50:54,269 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:54,270 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:50:54,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:50:54,270 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:54,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:54,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1510616083, now seen corresponding path program 1 times [2020-12-22 08:50:54,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:54,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969603108] [2020-12-22 08:50:54,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:54,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969603108] [2020-12-22 08:50:54,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:54,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:50:54,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513653074] [2020-12-22 08:50:54,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:50:54,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:54,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:50:54,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:50:54,456 INFO L87 Difference]: Start difference. First operand 1506 states and 2116 transitions. Second operand 9 states. [2020-12-22 08:50:57,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:57,482 INFO L93 Difference]: Finished difference Result 4399 states and 6355 transitions. [2020-12-22 08:50:57,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:50:57,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:50:57,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:57,493 INFO L225 Difference]: With dead ends: 4399 [2020-12-22 08:50:57,493 INFO L226 Difference]: Without dead ends: 3743 [2020-12-22 08:50:57,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:50:57,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3743 states. [2020-12-22 08:50:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3743 to 1506. [2020-12-22 08:50:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:50:57,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2115 transitions. [2020-12-22 08:50:57,679 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2115 transitions. Word has length 94 [2020-12-22 08:50:57,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:57,679 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2115 transitions. [2020-12-22 08:50:57,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:50:57,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2115 transitions. [2020-12-22 08:50:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:50:57,683 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:57,683 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:50:57,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:50:57,683 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:57,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:57,684 INFO L82 PathProgramCache]: Analyzing trace with hash -10217144, now seen corresponding path program 1 times [2020-12-22 08:50:57,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:57,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314690069] [2020-12-22 08:50:57,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:57,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314690069] [2020-12-22 08:50:57,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:57,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:50:57,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905406603] [2020-12-22 08:50:57,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:50:57,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:57,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:50:57,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:50:57,966 INFO L87 Difference]: Start difference. First operand 1506 states and 2115 transitions. Second operand 11 states. [2020-12-22 08:51:04,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:04,769 INFO L93 Difference]: Finished difference Result 11785 states and 17252 transitions. [2020-12-22 08:51:04,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:51:04,770 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-12-22 08:51:04,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:04,796 INFO L225 Difference]: With dead ends: 11785 [2020-12-22 08:51:04,796 INFO L226 Difference]: Without dead ends: 11097 [2020-12-22 08:51:04,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:51:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11097 states. [2020-12-22 08:51:05,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11097 to 1510. [2020-12-22 08:51:05,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:51:05,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2119 transitions. [2020-12-22 08:51:05,128 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2119 transitions. Word has length 94 [2020-12-22 08:51:05,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:05,128 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2119 transitions. [2020-12-22 08:51:05,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:51:05,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2119 transitions. [2020-12-22 08:51:05,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:51:05,131 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:05,131 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:05,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:51:05,131 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:05,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:05,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1869291794, now seen corresponding path program 1 times [2020-12-22 08:51:05,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:05,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636820523] [2020-12-22 08:51:05,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:05,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636820523] [2020-12-22 08:51:05,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:05,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:51:05,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694350020] [2020-12-22 08:51:05,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:51:05,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:05,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:51:05,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:51:05,327 INFO L87 Difference]: Start difference. First operand 1510 states and 2119 transitions. Second operand 9 states. [2020-12-22 08:51:08,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:08,133 INFO L93 Difference]: Finished difference Result 4305 states and 6220 transitions. [2020-12-22 08:51:08,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:51:08,134 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:51:08,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:08,142 INFO L225 Difference]: With dead ends: 4305 [2020-12-22 08:51:08,142 INFO L226 Difference]: Without dead ends: 3695 [2020-12-22 08:51:08,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:51:08,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2020-12-22 08:51:08,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 1510. [2020-12-22 08:51:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:51:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2118 transitions. [2020-12-22 08:51:08,416 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2118 transitions. Word has length 94 [2020-12-22 08:51:08,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:08,416 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2118 transitions. [2020-12-22 08:51:08,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:51:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2118 transitions. [2020-12-22 08:51:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:51:08,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:08,419 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:08,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:51:08,420 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:08,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:08,420 INFO L82 PathProgramCache]: Analyzing trace with hash 191796868, now seen corresponding path program 1 times [2020-12-22 08:51:08,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:08,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945886820] [2020-12-22 08:51:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:08,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945886820] [2020-12-22 08:51:08,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:08,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:51:08,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13951384] [2020-12-22 08:51:08,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:51:08,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:08,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:51:08,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:51:08,665 INFO L87 Difference]: Start difference. First operand 1510 states and 2118 transitions. Second operand 11 states. [2020-12-22 08:51:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:14,611 INFO L93 Difference]: Finished difference Result 8469 states and 12372 transitions. [2020-12-22 08:51:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:51:14,612 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-12-22 08:51:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:14,629 INFO L225 Difference]: With dead ends: 8469 [2020-12-22 08:51:14,630 INFO L226 Difference]: Without dead ends: 7863 [2020-12-22 08:51:14,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:51:14,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7863 states. [2020-12-22 08:51:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7863 to 1514. [2020-12-22 08:51:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2020-12-22 08:51:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2122 transitions. [2020-12-22 08:51:15,039 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2122 transitions. Word has length 94 [2020-12-22 08:51:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:15,040 INFO L481 AbstractCegarLoop]: Abstraction has 1514 states and 2122 transitions. [2020-12-22 08:51:15,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:51:15,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2122 transitions. [2020-12-22 08:51:15,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:51:15,043 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:15,043 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:15,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:51:15,043 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:15,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:15,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1752938330, now seen corresponding path program 1 times [2020-12-22 08:51:15,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:15,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166881009] [2020-12-22 08:51:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:15,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166881009] [2020-12-22 08:51:15,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:15,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:51:15,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960830640] [2020-12-22 08:51:15,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:51:15,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:15,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:51:15,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:51:15,235 INFO L87 Difference]: Start difference. First operand 1514 states and 2122 transitions. Second operand 9 states. [2020-12-22 08:51:18,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:18,014 INFO L93 Difference]: Finished difference Result 4298 states and 6210 transitions. [2020-12-22 08:51:18,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:51:18,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:51:18,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:18,021 INFO L225 Difference]: With dead ends: 4298 [2020-12-22 08:51:18,022 INFO L226 Difference]: Without dead ends: 3695 [2020-12-22 08:51:18,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:51:18,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2020-12-22 08:51:18,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 1514. [2020-12-22 08:51:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2020-12-22 08:51:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2121 transitions. [2020-12-22 08:51:18,321 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2121 transitions. Word has length 94 [2020-12-22 08:51:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:18,321 INFO L481 AbstractCegarLoop]: Abstraction has 1514 states and 2121 transitions. [2020-12-22 08:51:18,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:51:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2121 transitions. [2020-12-22 08:51:18,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:51:18,324 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:18,324 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:18,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:51:18,325 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:18,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:18,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1108794267, now seen corresponding path program 1 times [2020-12-22 08:51:18,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:18,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868695280] [2020-12-22 08:51:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:18,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:18,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868695280] [2020-12-22 08:51:18,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:18,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:51:18,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247232862] [2020-12-22 08:51:18,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:51:18,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:18,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:51:18,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:51:18,491 INFO L87 Difference]: Start difference. First operand 1514 states and 2121 transitions. Second operand 9 states. [2020-12-22 08:51:21,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:21,810 INFO L93 Difference]: Finished difference Result 4435 states and 6403 transitions. [2020-12-22 08:51:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:51:21,810 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:51:21,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:21,814 INFO L225 Difference]: With dead ends: 4435 [2020-12-22 08:51:21,814 INFO L226 Difference]: Without dead ends: 3747 [2020-12-22 08:51:21,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:51:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2020-12-22 08:51:22,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 1510. [2020-12-22 08:51:22,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:51:22,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2116 transitions. [2020-12-22 08:51:22,128 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2116 transitions. Word has length 95 [2020-12-22 08:51:22,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:22,128 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2116 transitions. [2020-12-22 08:51:22,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:51:22,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2116 transitions. [2020-12-22 08:51:22,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:51:22,131 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:22,132 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:22,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:51:22,132 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:22,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:22,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1428504522, now seen corresponding path program 1 times [2020-12-22 08:51:22,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:22,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180242375] [2020-12-22 08:51:22,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:22,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180242375] [2020-12-22 08:51:22,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:22,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:51:22,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816979537] [2020-12-22 08:51:22,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:51:22,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:22,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:51:22,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:51:22,359 INFO L87 Difference]: Start difference. First operand 1510 states and 2116 transitions. Second operand 9 states. [2020-12-22 08:51:25,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:25,581 INFO L93 Difference]: Finished difference Result 4297 states and 6206 transitions. [2020-12-22 08:51:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:51:25,582 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:51:25,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:25,587 INFO L225 Difference]: With dead ends: 4297 [2020-12-22 08:51:25,587 INFO L226 Difference]: Without dead ends: 3691 [2020-12-22 08:51:25,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:51:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2020-12-22 08:51:25,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 1506. [2020-12-22 08:51:25,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:51:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2111 transitions. [2020-12-22 08:51:25,896 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2111 transitions. Word has length 95 [2020-12-22 08:51:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:25,896 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2111 transitions. [2020-12-22 08:51:25,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:51:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2111 transitions. [2020-12-22 08:51:25,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:51:25,899 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:25,899 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:25,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:51:25,899 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:25,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:25,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1333702137, now seen corresponding path program 1 times [2020-12-22 08:51:25,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:25,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061969203] [2020-12-22 08:51:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:26,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061969203] [2020-12-22 08:51:26,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:26,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:51:26,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610589233] [2020-12-22 08:51:26,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:51:26,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:26,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:51:26,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:51:26,091 INFO L87 Difference]: Start difference. First operand 1506 states and 2111 transitions. Second operand 9 states. [2020-12-22 08:51:28,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:28,969 INFO L93 Difference]: Finished difference Result 4307 states and 6216 transitions. [2020-12-22 08:51:28,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:51:28,970 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:51:28,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:28,973 INFO L225 Difference]: With dead ends: 4307 [2020-12-22 08:51:28,973 INFO L226 Difference]: Without dead ends: 3691 [2020-12-22 08:51:28,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:51:28,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2020-12-22 08:51:29,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 1506. [2020-12-22 08:51:29,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:51:29,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2110 transitions. [2020-12-22 08:51:29,202 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2110 transitions. Word has length 96 [2020-12-22 08:51:29,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:29,202 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2110 transitions. [2020-12-22 08:51:29,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:51:29,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2110 transitions. [2020-12-22 08:51:29,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:51:29,205 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:29,205 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:29,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:51:29,206 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:29,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:29,206 INFO L82 PathProgramCache]: Analyzing trace with hash 924856909, now seen corresponding path program 1 times [2020-12-22 08:51:29,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:29,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637056272] [2020-12-22 08:51:29,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:29,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:29,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637056272] [2020-12-22 08:51:29,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:29,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:51:29,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005931082] [2020-12-22 08:51:29,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:51:29,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:29,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:51:29,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:51:29,401 INFO L87 Difference]: Start difference. First operand 1506 states and 2110 transitions. Second operand 9 states. [2020-12-22 08:51:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:32,634 INFO L93 Difference]: Finished difference Result 4480 states and 6509 transitions. [2020-12-22 08:51:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:51:32,635 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:51:32,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:32,638 INFO L225 Difference]: With dead ends: 4480 [2020-12-22 08:51:32,639 INFO L226 Difference]: Without dead ends: 3894 [2020-12-22 08:51:32,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:51:32,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2020-12-22 08:51:32,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 1506. [2020-12-22 08:51:32,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:51:32,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2109 transitions. [2020-12-22 08:51:32,878 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2109 transitions. Word has length 96 [2020-12-22 08:51:32,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:32,878 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2109 transitions. [2020-12-22 08:51:32,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:51:32,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2109 transitions. [2020-12-22 08:51:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:51:32,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:32,881 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:32,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:51:32,881 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:32,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:32,882 INFO L82 PathProgramCache]: Analyzing trace with hash 92967727, now seen corresponding path program 1 times [2020-12-22 08:51:32,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:32,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108756475] [2020-12-22 08:51:32,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:33,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108756475] [2020-12-22 08:51:33,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:33,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:51:33,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103760331] [2020-12-22 08:51:33,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:51:33,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:33,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:51:33,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:51:33,133 INFO L87 Difference]: Start difference. First operand 1506 states and 2109 transitions. Second operand 11 states. [2020-12-22 08:51:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:40,622 INFO L93 Difference]: Finished difference Result 9353 states and 13648 transitions. [2020-12-22 08:51:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:51:40,623 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2020-12-22 08:51:40,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:40,631 INFO L225 Difference]: With dead ends: 9353 [2020-12-22 08:51:40,631 INFO L226 Difference]: Without dead ends: 8641 [2020-12-22 08:51:40,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:51:40,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8641 states. [2020-12-22 08:51:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8641 to 1510. [2020-12-22 08:51:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:51:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2113 transitions. [2020-12-22 08:51:40,900 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2113 transitions. Word has length 96 [2020-12-22 08:51:40,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:40,901 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2113 transitions. [2020-12-22 08:51:40,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:51:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2113 transitions. [2020-12-22 08:51:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:51:40,903 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:40,903 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:40,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:51:40,904 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:40,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:40,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1818861412, now seen corresponding path program 1 times [2020-12-22 08:51:40,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:40,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610589294] [2020-12-22 08:51:40,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:41,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610589294] [2020-12-22 08:51:41,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:41,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:51:41,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526340408] [2020-12-22 08:51:41,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:51:41,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:41,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:51:41,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:51:41,205 INFO L87 Difference]: Start difference. First operand 1510 states and 2113 transitions. Second operand 12 states. [2020-12-22 08:51:47,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:47,357 INFO L93 Difference]: Finished difference Result 5208 states and 7499 transitions. [2020-12-22 08:51:47,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:51:47,358 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-12-22 08:51:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:47,364 INFO L225 Difference]: With dead ends: 5208 [2020-12-22 08:51:47,364 INFO L226 Difference]: Without dead ends: 4622 [2020-12-22 08:51:47,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:51:47,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2020-12-22 08:51:47,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 1510. [2020-12-22 08:51:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:51:47,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2112 transitions. [2020-12-22 08:51:47,645 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2112 transitions. Word has length 96 [2020-12-22 08:51:47,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:47,645 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2112 transitions. [2020-12-22 08:51:47,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:51:47,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2112 transitions. [2020-12-22 08:51:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:51:47,647 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:47,647 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:47,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:51:47,648 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:47,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1839313585, now seen corresponding path program 1 times [2020-12-22 08:51:47,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:47,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541456432] [2020-12-22 08:51:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:47,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541456432] [2020-12-22 08:51:47,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:47,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:51:47,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914445506] [2020-12-22 08:51:47,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:51:47,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:47,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:51:47,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:51:47,869 INFO L87 Difference]: Start difference. First operand 1510 states and 2112 transitions. Second operand 9 states. [2020-12-22 08:51:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:51,575 INFO L93 Difference]: Finished difference Result 4480 states and 6507 transitions. [2020-12-22 08:51:51,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:51:51,576 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:51:51,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:51,580 INFO L225 Difference]: With dead ends: 4480 [2020-12-22 08:51:51,580 INFO L226 Difference]: Without dead ends: 3898 [2020-12-22 08:51:51,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:51:51,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3898 states. [2020-12-22 08:51:51,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3898 to 1510. [2020-12-22 08:51:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:51:51,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2111 transitions. [2020-12-22 08:51:51,877 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2111 transitions. Word has length 96 [2020-12-22 08:51:51,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:51,877 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2111 transitions. [2020-12-22 08:51:51,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:51:51,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2111 transitions. [2020-12-22 08:51:51,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:51:51,879 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:51,879 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:51:51,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:51:51,879 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:51:51,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:51,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1859604465, now seen corresponding path program 1 times [2020-12-22 08:51:51,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:51,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881891232] [2020-12-22 08:51:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:51:52,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881891232] [2020-12-22 08:51:52,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:52,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:51:52,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804496054] [2020-12-22 08:51:52,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:51:52,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:52,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:51:52,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:51:52,121 INFO L87 Difference]: Start difference. First operand 1510 states and 2111 transitions. Second operand 11 states. [2020-12-22 08:51:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:59,930 INFO L93 Difference]: Finished difference Result 8473 states and 12358 transitions. [2020-12-22 08:51:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:51:59,931 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2020-12-22 08:51:59,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:59,938 INFO L225 Difference]: With dead ends: 8473 [2020-12-22 08:51:59,939 INFO L226 Difference]: Without dead ends: 7865 [2020-12-22 08:51:59,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:51:59,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7865 states. [2020-12-22 08:52:00,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7865 to 1514. [2020-12-22 08:52:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2020-12-22 08:52:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2115 transitions. [2020-12-22 08:52:00,310 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2115 transitions. Word has length 96 [2020-12-22 08:52:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:00,310 INFO L481 AbstractCegarLoop]: Abstraction has 1514 states and 2115 transitions. [2020-12-22 08:52:00,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:52:00,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2115 transitions. [2020-12-22 08:52:00,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:00,312 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:00,312 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:00,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:52:00,312 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:00,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:00,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1450759237, now seen corresponding path program 1 times [2020-12-22 08:52:00,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:00,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472079724] [2020-12-22 08:52:00,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:00,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:00,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472079724] [2020-12-22 08:52:00,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:00,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:00,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834262369] [2020-12-22 08:52:00,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:00,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:00,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:00,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:00,498 INFO L87 Difference]: Start difference. First operand 1514 states and 2115 transitions. Second operand 9 states. [2020-12-22 08:52:04,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:04,292 INFO L93 Difference]: Finished difference Result 4488 states and 6513 transitions. [2020-12-22 08:52:04,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:52:04,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:52:04,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:04,296 INFO L225 Difference]: With dead ends: 4488 [2020-12-22 08:52:04,301 INFO L226 Difference]: Without dead ends: 3902 [2020-12-22 08:52:04,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:52:04,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2020-12-22 08:52:04,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 1514. [2020-12-22 08:52:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2020-12-22 08:52:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2114 transitions. [2020-12-22 08:52:04,643 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2114 transitions. Word has length 96 [2020-12-22 08:52:04,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:04,643 INFO L481 AbstractCegarLoop]: Abstraction has 1514 states and 2114 transitions. [2020-12-22 08:52:04,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:04,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2114 transitions. [2020-12-22 08:52:04,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:04,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:04,645 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:04,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:52:04,645 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:04,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:04,645 INFO L82 PathProgramCache]: Analyzing trace with hash 627769446, now seen corresponding path program 1 times [2020-12-22 08:52:04,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:04,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382492063] [2020-12-22 08:52:04,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:04,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:04,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382492063] [2020-12-22 08:52:04,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:04,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:52:04,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643672439] [2020-12-22 08:52:04,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:52:04,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:04,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:52:04,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:52:04,905 INFO L87 Difference]: Start difference. First operand 1514 states and 2114 transitions. Second operand 11 states. [2020-12-22 08:52:12,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:12,608 INFO L93 Difference]: Finished difference Result 8489 states and 12383 transitions. [2020-12-22 08:52:12,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:52:12,608 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2020-12-22 08:52:12,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:12,616 INFO L225 Difference]: With dead ends: 8489 [2020-12-22 08:52:12,616 INFO L226 Difference]: Without dead ends: 7873 [2020-12-22 08:52:12,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:52:12,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7873 states. [2020-12-22 08:52:13,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7873 to 1518. [2020-12-22 08:52:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-12-22 08:52:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2118 transitions. [2020-12-22 08:52:13,030 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2118 transitions. Word has length 96 [2020-12-22 08:52:13,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:13,031 INFO L481 AbstractCegarLoop]: Abstraction has 1518 states and 2118 transitions. [2020-12-22 08:52:13,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:52:13,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2118 transitions. [2020-12-22 08:52:13,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:13,032 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:13,032 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:13,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:52:13,033 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:13,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:13,033 INFO L82 PathProgramCache]: Analyzing trace with hash 218924218, now seen corresponding path program 1 times [2020-12-22 08:52:13,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:13,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986546301] [2020-12-22 08:52:13,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:13,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:13,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986546301] [2020-12-22 08:52:13,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:13,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:13,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870259183] [2020-12-22 08:52:13,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:13,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:13,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:13,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:13,235 INFO L87 Difference]: Start difference. First operand 1518 states and 2118 transitions. Second operand 9 states. [2020-12-22 08:52:17,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:17,608 INFO L93 Difference]: Finished difference Result 4492 states and 6517 transitions. [2020-12-22 08:52:17,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:52:17,608 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:52:17,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:17,614 INFO L225 Difference]: With dead ends: 4492 [2020-12-22 08:52:17,614 INFO L226 Difference]: Without dead ends: 3906 [2020-12-22 08:52:17,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:52:17,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2020-12-22 08:52:17,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 1518. [2020-12-22 08:52:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-12-22 08:52:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2117 transitions. [2020-12-22 08:52:17,962 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2117 transitions. Word has length 96 [2020-12-22 08:52:17,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:17,962 INFO L481 AbstractCegarLoop]: Abstraction has 1518 states and 2117 transitions. [2020-12-22 08:52:17,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2117 transitions. [2020-12-22 08:52:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:17,964 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:17,964 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:17,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:52:17,965 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:17,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:17,965 INFO L82 PathProgramCache]: Analyzing trace with hash 587026393, now seen corresponding path program 1 times [2020-12-22 08:52:17,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:17,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91716289] [2020-12-22 08:52:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:18,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91716289] [2020-12-22 08:52:18,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:18,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:52:18,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400363897] [2020-12-22 08:52:18,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:52:18,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:18,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:52:18,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:52:18,272 INFO L87 Difference]: Start difference. First operand 1518 states and 2117 transitions. Second operand 12 states. [2020-12-22 08:52:25,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:25,373 INFO L93 Difference]: Finished difference Result 5216 states and 7505 transitions. [2020-12-22 08:52:25,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:52:25,373 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-12-22 08:52:25,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:25,378 INFO L225 Difference]: With dead ends: 5216 [2020-12-22 08:52:25,378 INFO L226 Difference]: Without dead ends: 4630 [2020-12-22 08:52:25,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:52:25,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2020-12-22 08:52:25,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 1518. [2020-12-22 08:52:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-12-22 08:52:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2116 transitions. [2020-12-22 08:52:25,754 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2116 transitions. Word has length 96 [2020-12-22 08:52:25,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:25,754 INFO L481 AbstractCegarLoop]: Abstraction has 1518 states and 2116 transitions. [2020-12-22 08:52:25,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:52:25,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2116 transitions. [2020-12-22 08:52:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:25,756 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:25,756 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:25,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:52:25,756 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:25,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:25,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1223338080, now seen corresponding path program 1 times [2020-12-22 08:52:25,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:25,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211289626] [2020-12-22 08:52:25,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:25,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211289626] [2020-12-22 08:52:25,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:25,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:25,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736089334] [2020-12-22 08:52:25,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:25,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:25,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:25,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:25,944 INFO L87 Difference]: Start difference. First operand 1518 states and 2116 transitions. Second operand 9 states. [2020-12-22 08:52:30,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:30,215 INFO L93 Difference]: Finished difference Result 4488 states and 6511 transitions. [2020-12-22 08:52:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:52:30,215 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:52:30,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:30,219 INFO L225 Difference]: With dead ends: 4488 [2020-12-22 08:52:30,219 INFO L226 Difference]: Without dead ends: 3906 [2020-12-22 08:52:30,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:52:30,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2020-12-22 08:52:30,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 1518. [2020-12-22 08:52:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-12-22 08:52:30,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2115 transitions. [2020-12-22 08:52:30,587 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2115 transitions. Word has length 96 [2020-12-22 08:52:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:30,587 INFO L481 AbstractCegarLoop]: Abstraction has 1518 states and 2115 transitions. [2020-12-22 08:52:30,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:30,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2115 transitions. [2020-12-22 08:52:30,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:30,589 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:30,589 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:30,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:52:30,589 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:30,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:30,589 INFO L82 PathProgramCache]: Analyzing trace with hash -236760265, now seen corresponding path program 1 times [2020-12-22 08:52:30,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:30,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065235206] [2020-12-22 08:52:30,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:30,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065235206] [2020-12-22 08:52:30,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:30,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:30,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013349022] [2020-12-22 08:52:30,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:30,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:30,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:30,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:30,768 INFO L87 Difference]: Start difference. First operand 1518 states and 2115 transitions. Second operand 9 states. [2020-12-22 08:52:34,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:34,997 INFO L93 Difference]: Finished difference Result 4488 states and 6510 transitions. [2020-12-22 08:52:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:52:34,998 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:52:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:35,001 INFO L225 Difference]: With dead ends: 4488 [2020-12-22 08:52:35,002 INFO L226 Difference]: Without dead ends: 3906 [2020-12-22 08:52:35,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:52:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2020-12-22 08:52:35,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 1518. [2020-12-22 08:52:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-12-22 08:52:35,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2114 transitions. [2020-12-22 08:52:35,337 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2114 transitions. Word has length 96 [2020-12-22 08:52:35,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:35,337 INFO L481 AbstractCegarLoop]: Abstraction has 1518 states and 2114 transitions. [2020-12-22 08:52:35,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:35,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2114 transitions. [2020-12-22 08:52:35,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:35,338 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:35,338 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:35,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:52:35,339 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:35,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:35,339 INFO L82 PathProgramCache]: Analyzing trace with hash -872854485, now seen corresponding path program 1 times [2020-12-22 08:52:35,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:35,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796306857] [2020-12-22 08:52:35,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:35,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796306857] [2020-12-22 08:52:35,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:35,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:52:35,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223707670] [2020-12-22 08:52:35,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:52:35,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:35,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:52:35,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:52:35,632 INFO L87 Difference]: Start difference. First operand 1518 states and 2114 transitions. Second operand 12 states. [2020-12-22 08:52:42,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:42,953 INFO L93 Difference]: Finished difference Result 5216 states and 7500 transitions. [2020-12-22 08:52:42,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:52:42,953 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-12-22 08:52:42,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:42,958 INFO L225 Difference]: With dead ends: 5216 [2020-12-22 08:52:42,958 INFO L226 Difference]: Without dead ends: 4630 [2020-12-22 08:52:42,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:52:42,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2020-12-22 08:52:43,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 1518. [2020-12-22 08:52:43,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-12-22 08:52:43,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2113 transitions. [2020-12-22 08:52:43,346 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2113 transitions. Word has length 96 [2020-12-22 08:52:43,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:43,346 INFO L481 AbstractCegarLoop]: Abstraction has 1518 states and 2113 transitions. [2020-12-22 08:52:43,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:52:43,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2113 transitions. [2020-12-22 08:52:43,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:43,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:43,348 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:43,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:52:43,348 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:43,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:43,349 INFO L82 PathProgramCache]: Analyzing trace with hash -35876805, now seen corresponding path program 1 times [2020-12-22 08:52:43,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:43,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938033783] [2020-12-22 08:52:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:43,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938033783] [2020-12-22 08:52:43,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:43,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:52:43,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678689274] [2020-12-22 08:52:43,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:52:43,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:43,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:52:43,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:52:43,658 INFO L87 Difference]: Start difference. First operand 1518 states and 2113 transitions. Second operand 12 states. [2020-12-22 08:52:50,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:50,829 INFO L93 Difference]: Finished difference Result 5208 states and 7493 transitions. [2020-12-22 08:52:50,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:52:50,830 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-12-22 08:52:50,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:50,835 INFO L225 Difference]: With dead ends: 5208 [2020-12-22 08:52:50,836 INFO L226 Difference]: Without dead ends: 4626 [2020-12-22 08:52:50,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:52:50,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4626 states. [2020-12-22 08:52:51,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4626 to 1518. [2020-12-22 08:52:51,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-12-22 08:52:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2112 transitions. [2020-12-22 08:52:51,307 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2112 transitions. Word has length 96 [2020-12-22 08:52:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:51,307 INFO L481 AbstractCegarLoop]: Abstraction has 1518 states and 2112 transitions. [2020-12-22 08:52:51,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:52:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2112 transitions. [2020-12-22 08:52:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:51,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:51,309 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:51,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:52:51,309 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:51,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:51,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1688520017, now seen corresponding path program 1 times [2020-12-22 08:52:51,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:51,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517647257] [2020-12-22 08:52:51,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:51,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517647257] [2020-12-22 08:52:51,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:51,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:51,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439413938] [2020-12-22 08:52:51,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:51,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:51,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:51,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:51,533 INFO L87 Difference]: Start difference. First operand 1518 states and 2112 transitions. Second operand 9 states. [2020-12-22 08:52:55,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:55,575 INFO L93 Difference]: Finished difference Result 4487 states and 6506 transitions. [2020-12-22 08:52:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:52:55,576 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:52:55,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:55,579 INFO L225 Difference]: With dead ends: 4487 [2020-12-22 08:52:55,580 INFO L226 Difference]: Without dead ends: 3906 [2020-12-22 08:52:55,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:52:55,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2020-12-22 08:52:55,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 1518. [2020-12-22 08:52:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-12-22 08:52:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2111 transitions. [2020-12-22 08:52:55,953 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2111 transitions. Word has length 96 [2020-12-22 08:52:55,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:55,953 INFO L481 AbstractCegarLoop]: Abstraction has 1518 states and 2111 transitions. [2020-12-22 08:52:55,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:55,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2111 transitions. [2020-12-22 08:52:55,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:52:55,955 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:55,955 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:55,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:52:55,955 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:55,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:55,956 INFO L82 PathProgramCache]: Analyzing trace with hash -509190882, now seen corresponding path program 1 times [2020-12-22 08:52:55,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:55,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669851129] [2020-12-22 08:52:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:56,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:56,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669851129] [2020-12-22 08:52:56,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:56,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:56,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266597581] [2020-12-22 08:52:56,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:56,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:56,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:56,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:56,159 INFO L87 Difference]: Start difference. First operand 1518 states and 2111 transitions. Second operand 9 states. [2020-12-22 08:53:00,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:00,406 INFO L93 Difference]: Finished difference Result 4467 states and 6410 transitions. [2020-12-22 08:53:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:00,407 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:53:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:00,410 INFO L225 Difference]: With dead ends: 4467 [2020-12-22 08:53:00,410 INFO L226 Difference]: Without dead ends: 3755 [2020-12-22 08:53:00,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2020-12-22 08:53:00,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 1514. [2020-12-22 08:53:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2020-12-22 08:53:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2106 transitions. [2020-12-22 08:53:00,788 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2106 transitions. Word has length 97 [2020-12-22 08:53:00,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:00,788 INFO L481 AbstractCegarLoop]: Abstraction has 1514 states and 2106 transitions. [2020-12-22 08:53:00,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:00,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2106 transitions. [2020-12-22 08:53:00,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:53:00,790 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:00,790 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:00,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:53:00,791 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:00,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:00,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1446549018, now seen corresponding path program 1 times [2020-12-22 08:53:00,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:00,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914951462] [2020-12-22 08:53:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:00,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914951462] [2020-12-22 08:53:00,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:00,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:00,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114385156] [2020-12-22 08:53:00,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:00,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:00,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:00,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:00,978 INFO L87 Difference]: Start difference. First operand 1514 states and 2106 transitions. Second operand 9 states. [2020-12-22 08:53:04,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:04,560 INFO L93 Difference]: Finished difference Result 3348 states and 4790 transitions. [2020-12-22 08:53:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:04,560 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:53:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:04,564 INFO L225 Difference]: With dead ends: 3348 [2020-12-22 08:53:04,564 INFO L226 Difference]: Without dead ends: 2762 [2020-12-22 08:53:04,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:04,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2020-12-22 08:53:04,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1514. [2020-12-22 08:53:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2020-12-22 08:53:04,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2105 transitions. [2020-12-22 08:53:04,943 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2105 transitions. Word has length 97 [2020-12-22 08:53:04,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:04,943 INFO L481 AbstractCegarLoop]: Abstraction has 1514 states and 2105 transitions. [2020-12-22 08:53:04,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:04,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2105 transitions. [2020-12-22 08:53:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:53:04,944 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:04,944 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:04,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:53:04,945 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:04,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:04,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1869892186, now seen corresponding path program 1 times [2020-12-22 08:53:04,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:04,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389376841] [2020-12-22 08:53:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:05,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:05,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389376841] [2020-12-22 08:53:05,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:05,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:05,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337496250] [2020-12-22 08:53:05,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:05,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:05,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:05,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:05,111 INFO L87 Difference]: Start difference. First operand 1514 states and 2105 transitions. Second operand 9 states. [2020-12-22 08:53:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:09,334 INFO L93 Difference]: Finished difference Result 4299 states and 6182 transitions. [2020-12-22 08:53:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:09,334 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:53:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:09,337 INFO L225 Difference]: With dead ends: 4299 [2020-12-22 08:53:09,338 INFO L226 Difference]: Without dead ends: 3691 [2020-12-22 08:53:09,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:53:09,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2020-12-22 08:53:09,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 1510. [2020-12-22 08:53:09,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:53:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2100 transitions. [2020-12-22 08:53:09,742 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2100 transitions. Word has length 97 [2020-12-22 08:53:09,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:09,742 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2100 transitions. [2020-12-22 08:53:09,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:09,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2100 transitions. [2020-12-22 08:53:09,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:53:09,743 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:09,744 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:09,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 08:53:09,744 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:09,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:09,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1957254551, now seen corresponding path program 1 times [2020-12-22 08:53:09,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:09,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716997434] [2020-12-22 08:53:09,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:09,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:09,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716997434] [2020-12-22 08:53:09,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:09,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:09,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983132013] [2020-12-22 08:53:09,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:09,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:09,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:09,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:09,912 INFO L87 Difference]: Start difference. First operand 1510 states and 2100 transitions. Second operand 9 states. [2020-12-22 08:53:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:14,016 INFO L93 Difference]: Finished difference Result 4307 states and 6195 transitions. [2020-12-22 08:53:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:14,017 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:53:14,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:14,020 INFO L225 Difference]: With dead ends: 4307 [2020-12-22 08:53:14,020 INFO L226 Difference]: Without dead ends: 3691 [2020-12-22 08:53:14,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:53:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2020-12-22 08:53:14,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 1506. [2020-12-22 08:53:14,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:53:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2095 transitions. [2020-12-22 08:53:14,448 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2095 transitions. Word has length 97 [2020-12-22 08:53:14,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:14,448 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2095 transitions. [2020-12-22 08:53:14,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:14,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2095 transitions. [2020-12-22 08:53:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:53:14,450 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:14,450 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:14,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 08:53:14,450 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:14,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:14,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1914369577, now seen corresponding path program 1 times [2020-12-22 08:53:14,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:14,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401580924] [2020-12-22 08:53:14,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:14,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401580924] [2020-12-22 08:53:14,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:14,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:14,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061146528] [2020-12-22 08:53:14,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:14,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:14,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:14,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:14,623 INFO L87 Difference]: Start difference. First operand 1506 states and 2095 transitions. Second operand 9 states. [2020-12-22 08:53:18,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:18,532 INFO L93 Difference]: Finished difference Result 3340 states and 4780 transitions. [2020-12-22 08:53:18,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:18,533 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:53:18,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:18,536 INFO L225 Difference]: With dead ends: 3340 [2020-12-22 08:53:18,536 INFO L226 Difference]: Without dead ends: 2754 [2020-12-22 08:53:18,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2020-12-22 08:53:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1506. [2020-12-22 08:53:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:53:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2094 transitions. [2020-12-22 08:53:18,956 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2094 transitions. Word has length 97 [2020-12-22 08:53:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:18,956 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2094 transitions. [2020-12-22 08:53:18,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2094 transitions. [2020-12-22 08:53:18,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:53:18,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:18,957 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:18,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 08:53:18,958 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:18,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:18,958 INFO L82 PathProgramCache]: Analyzing trace with hash -392264462, now seen corresponding path program 1 times [2020-12-22 08:53:18,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:18,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381180767] [2020-12-22 08:53:18,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:19,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381180767] [2020-12-22 08:53:19,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:19,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:19,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241349894] [2020-12-22 08:53:19,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:19,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:19,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:19,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:19,139 INFO L87 Difference]: Start difference. First operand 1506 states and 2094 transitions. Second operand 9 states. [2020-12-22 08:53:22,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:22,933 INFO L93 Difference]: Finished difference Result 3340 states and 4778 transitions. [2020-12-22 08:53:22,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:22,934 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:53:22,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:22,936 INFO L225 Difference]: With dead ends: 3340 [2020-12-22 08:53:22,936 INFO L226 Difference]: Without dead ends: 2754 [2020-12-22 08:53:22,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:22,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2020-12-22 08:53:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1506. [2020-12-22 08:53:23,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:53:23,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2093 transitions. [2020-12-22 08:53:23,346 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2093 transitions. Word has length 97 [2020-12-22 08:53:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:23,346 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2093 transitions. [2020-12-22 08:53:23,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2093 transitions. [2020-12-22 08:53:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:53:23,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:23,348 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:23,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 08:53:23,348 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:23,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:23,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1542766093, now seen corresponding path program 1 times [2020-12-22 08:53:23,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:23,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265435485] [2020-12-22 08:53:23,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:23,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265435485] [2020-12-22 08:53:23,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:23,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:23,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194315887] [2020-12-22 08:53:23,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:23,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:23,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:23,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:23,527 INFO L87 Difference]: Start difference. First operand 1506 states and 2093 transitions. Second operand 9 states. [2020-12-22 08:53:27,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:27,499 INFO L93 Difference]: Finished difference Result 3336 states and 4774 transitions. [2020-12-22 08:53:27,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:27,501 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:53:27,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:27,504 INFO L225 Difference]: With dead ends: 3336 [2020-12-22 08:53:27,504 INFO L226 Difference]: Without dead ends: 2754 [2020-12-22 08:53:27,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:27,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2020-12-22 08:53:27,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1506. [2020-12-22 08:53:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:53:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2092 transitions. [2020-12-22 08:53:27,939 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2092 transitions. Word has length 97 [2020-12-22 08:53:27,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:27,940 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2092 transitions. [2020-12-22 08:53:27,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:27,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2092 transitions. [2020-12-22 08:53:27,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:53:27,942 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:27,942 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:27,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-22 08:53:27,942 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:27,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:27,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1799558176, now seen corresponding path program 1 times [2020-12-22 08:53:27,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:27,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783278237] [2020-12-22 08:53:27,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:28,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:28,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783278237] [2020-12-22 08:53:28,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:28,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:28,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895160431] [2020-12-22 08:53:28,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:28,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:28,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:28,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:28,153 INFO L87 Difference]: Start difference. First operand 1506 states and 2092 transitions. Second operand 9 states. [2020-12-22 08:53:32,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:32,597 INFO L93 Difference]: Finished difference Result 4476 states and 6485 transitions. [2020-12-22 08:53:32,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:53:32,598 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:53:32,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:32,602 INFO L225 Difference]: With dead ends: 4476 [2020-12-22 08:53:32,602 INFO L226 Difference]: Without dead ends: 3894 [2020-12-22 08:53:32,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:53:32,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2020-12-22 08:53:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 1506. [2020-12-22 08:53:33,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:53:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2090 transitions. [2020-12-22 08:53:33,049 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2090 transitions. Word has length 98 [2020-12-22 08:53:33,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:33,049 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2090 transitions. [2020-12-22 08:53:33,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:33,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2090 transitions. [2020-12-22 08:53:33,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:53:33,050 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:33,050 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:33,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 08:53:33,051 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:33,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:33,051 INFO L82 PathProgramCache]: Analyzing trace with hash 112638926, now seen corresponding path program 1 times [2020-12-22 08:53:33,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:33,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541034519] [2020-12-22 08:53:33,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:33,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541034519] [2020-12-22 08:53:33,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:33,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:53:33,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797761652] [2020-12-22 08:53:33,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:53:33,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:33,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:53:33,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:53:33,337 INFO L87 Difference]: Start difference. First operand 1506 states and 2090 transitions. Second operand 12 states. [2020-12-22 08:53:41,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:41,834 INFO L93 Difference]: Finished difference Result 5214 states and 7486 transitions. [2020-12-22 08:53:41,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:41,835 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2020-12-22 08:53:41,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:41,839 INFO L225 Difference]: With dead ends: 5214 [2020-12-22 08:53:41,839 INFO L226 Difference]: Without dead ends: 4623 [2020-12-22 08:53:41,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:53:41,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4623 states. [2020-12-22 08:53:42,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4623 to 1506. [2020-12-22 08:53:42,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:53:42,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2089 transitions. [2020-12-22 08:53:42,299 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2089 transitions. Word has length 98 [2020-12-22 08:53:42,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:42,299 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2089 transitions. [2020-12-22 08:53:42,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:53:42,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2089 transitions. [2020-12-22 08:53:42,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:53:42,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:42,301 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:42,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-22 08:53:42,301 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:42,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:42,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1288712520, now seen corresponding path program 1 times [2020-12-22 08:53:42,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:42,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750615341] [2020-12-22 08:53:42,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:42,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:42,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750615341] [2020-12-22 08:53:42,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:42,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:42,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122765772] [2020-12-22 08:53:42,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:42,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:42,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:42,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:42,481 INFO L87 Difference]: Start difference. First operand 1506 states and 2089 transitions. Second operand 9 states. [2020-12-22 08:53:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:47,084 INFO L93 Difference]: Finished difference Result 4470 states and 6475 transitions. [2020-12-22 08:53:47,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:53:47,085 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:53:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:47,090 INFO L225 Difference]: With dead ends: 4470 [2020-12-22 08:53:47,090 INFO L226 Difference]: Without dead ends: 3894 [2020-12-22 08:53:47,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:53:47,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2020-12-22 08:53:47,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 1506. [2020-12-22 08:53:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:53:47,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2088 transitions. [2020-12-22 08:53:47,543 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2088 transitions. Word has length 98 [2020-12-22 08:53:47,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:47,543 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2088 transitions. [2020-12-22 08:53:47,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:47,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2088 transitions. [2020-12-22 08:53:47,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:53:47,545 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:47,546 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:47,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-22 08:53:47,546 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:47,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1740272545, now seen corresponding path program 1 times [2020-12-22 08:53:47,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:47,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705250596] [2020-12-22 08:53:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:47,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705250596] [2020-12-22 08:53:47,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:47,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:53:47,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067615733] [2020-12-22 08:53:47,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:53:47,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:47,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:53:47,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:53:47,847 INFO L87 Difference]: Start difference. First operand 1506 states and 2088 transitions. Second operand 12 states. [2020-12-22 08:53:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:55,862 INFO L93 Difference]: Finished difference Result 4802 states and 6868 transitions. [2020-12-22 08:53:55,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:55,868 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2020-12-22 08:53:55,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:55,873 INFO L225 Difference]: With dead ends: 4802 [2020-12-22 08:53:55,873 INFO L226 Difference]: Without dead ends: 4223 [2020-12-22 08:53:55,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:53:55,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2020-12-22 08:53:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 1506. [2020-12-22 08:53:56,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-12-22 08:53:56,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2087 transitions. [2020-12-22 08:53:56,350 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2087 transitions. Word has length 98 [2020-12-22 08:53:56,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:56,350 INFO L481 AbstractCegarLoop]: Abstraction has 1506 states and 2087 transitions. [2020-12-22 08:53:56,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:53:56,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2087 transitions. [2020-12-22 08:53:56,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:53:56,352 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:56,352 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:56,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-22 08:53:56,352 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:56,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:56,353 INFO L82 PathProgramCache]: Analyzing trace with hash -285632464, now seen corresponding path program 1 times [2020-12-22 08:53:56,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:56,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542899218] [2020-12-22 08:53:56,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:56,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542899218] [2020-12-22 08:53:56,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:56,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:56,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389574762] [2020-12-22 08:53:56,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:56,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:56,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:56,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:56,584 INFO L87 Difference]: Start difference. First operand 1506 states and 2087 transitions. Second operand 11 states. [2020-12-22 08:54:06,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:06,846 INFO L93 Difference]: Finished difference Result 8507 states and 12373 transitions. [2020-12-22 08:54:06,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:06,847 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-12-22 08:54:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:06,857 INFO L225 Difference]: With dead ends: 8507 [2020-12-22 08:54:06,857 INFO L226 Difference]: Without dead ends: 7880 [2020-12-22 08:54:06,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:54:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7880 states. [2020-12-22 08:54:07,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7880 to 1510. [2020-12-22 08:54:07,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:54:07,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2091 transitions. [2020-12-22 08:54:07,412 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2091 transitions. Word has length 98 [2020-12-22 08:54:07,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:07,412 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2091 transitions. [2020-12-22 08:54:07,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:54:07,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2091 transitions. [2020-12-22 08:54:07,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:54:07,413 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:07,414 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:07,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-12-22 08:54:07,414 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:07,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:07,414 INFO L82 PathProgramCache]: Analyzing trace with hash 131410264, now seen corresponding path program 1 times [2020-12-22 08:54:07,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:07,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726938380] [2020-12-22 08:54:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:07,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:07,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726938380] [2020-12-22 08:54:07,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:07,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:07,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924473977] [2020-12-22 08:54:07,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:07,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:07,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:07,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:07,618 INFO L87 Difference]: Start difference. First operand 1510 states and 2091 transitions. Second operand 9 states. [2020-12-22 08:54:12,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:12,791 INFO L93 Difference]: Finished difference Result 4477 states and 6480 transitions. [2020-12-22 08:54:12,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:12,792 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:54:12,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:12,795 INFO L225 Difference]: With dead ends: 4477 [2020-12-22 08:54:12,795 INFO L226 Difference]: Without dead ends: 3898 [2020-12-22 08:54:12,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:54:12,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3898 states. [2020-12-22 08:54:13,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3898 to 1510. [2020-12-22 08:54:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:54:13,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2090 transitions. [2020-12-22 08:54:13,283 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2090 transitions. Word has length 98 [2020-12-22 08:54:13,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:13,284 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2090 transitions. [2020-12-22 08:54:13,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2090 transitions. [2020-12-22 08:54:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:54:13,285 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:13,285 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:13,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-12-22 08:54:13,285 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:13,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:13,286 INFO L82 PathProgramCache]: Analyzing trace with hash 2043607366, now seen corresponding path program 1 times [2020-12-22 08:54:13,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:13,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393371557] [2020-12-22 08:54:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:13,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:13,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393371557] [2020-12-22 08:54:13,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:13,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:13,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683737493] [2020-12-22 08:54:13,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:13,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:13,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:13,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:13,489 INFO L87 Difference]: Start difference. First operand 1510 states and 2090 transitions. Second operand 9 states. [2020-12-22 08:54:19,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:19,234 INFO L93 Difference]: Finished difference Result 4489 states and 6493 transitions. [2020-12-22 08:54:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:19,235 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:54:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:19,239 INFO L225 Difference]: With dead ends: 4489 [2020-12-22 08:54:19,239 INFO L226 Difference]: Without dead ends: 3898 [2020-12-22 08:54:19,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:54:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3898 states. [2020-12-22 08:54:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3898 to 1510. [2020-12-22 08:54:19,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1510 states. [2020-12-22 08:54:19,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2089 transitions. [2020-12-22 08:54:19,763 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2089 transitions. Word has length 98 [2020-12-22 08:54:19,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:19,763 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 2089 transitions. [2020-12-22 08:54:19,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:19,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2089 transitions. [2020-12-22 08:54:19,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:54:19,765 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:19,765 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:19,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-22 08:54:19,765 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:19,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:19,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1144212400, now seen corresponding path program 1 times [2020-12-22 08:54:19,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:19,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898945375] [2020-12-22 08:54:19,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:19,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898945375] [2020-12-22 08:54:19,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:19,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:19,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754336737] [2020-12-22 08:54:19,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:19,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:19,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:19,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:19,974 INFO L87 Difference]: Start difference. First operand 1510 states and 2089 transitions. Second operand 9 states.