/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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:57:16,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:57:16,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:57:16,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:57:16,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:57:16,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:57:16,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:57:16,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:57:16,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:57:16,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:57:16,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:57:16,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:57:16,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:57:16,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:57:16,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:57:16,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:57:16,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:57:16,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:57:16,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:57:16,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:57:16,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:57:16,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:57:16,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:57:16,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:57:16,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:57:16,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:57:16,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:57:16,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:57:16,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:57:16,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:57:16,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:57:16,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:57:16,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:57:16,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:57:16,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:57:16,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:57:16,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:57:16,330 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:57:16,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:57:16,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:57:16,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:57:16,333 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:57:16,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:57:16,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:57:16,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:57:16,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:57:16,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:57:16,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:57:16,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:57:16,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:57:16,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:57:16,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:57:16,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:57:16,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:57:16,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:57:16,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:57:16,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:57:16,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:57:16,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:57:16,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:57:16,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:57:16,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:57:16,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:57:16,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:57:16,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:57:16,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:57:16,846 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:57:16,847 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:57:16,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:57:16,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0cbc9dc/08dd6d25d867447383f1fec81e164602/FLAGa780e782d [2020-12-22 08:57:18,397 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:57:18,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:57:18,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0cbc9dc/08dd6d25d867447383f1fec81e164602/FLAGa780e782d [2020-12-22 08:57:18,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0cbc9dc/08dd6d25d867447383f1fec81e164602 [2020-12-22 08:57:18,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:57:18,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:57:18,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:57:18,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:57:18,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:57:18,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:57:18" (1/1) ... [2020-12-22 08:57:18,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee542b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:18, skipping insertion in model container [2020-12-22 08:57:18,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:57:18" (1/1) ... [2020-12-22 08:57:18,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:57:19,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:57:20,725 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[146972,146985] [2020-12-22 08:57:21,034 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[216236,216249] [2020-12-22 08:57:21,181 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250865,250878] [2020-12-22 08:57:21,261 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[268214,268227] [2020-12-22 08:57:21,301 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[276889,276902] [2020-12-22 08:57:21,325 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[281198,281211] [2020-12-22 08:57:21,345 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[285338,285351] [2020-12-22 08:57:21,593 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[353429,353442] [2020-12-22 08:57:21,711 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[387290,387303] [2020-12-22 08:57:21,773 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[404398,404411] [2020-12-22 08:57:21,807 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[413077,413090] [2020-12-22 08:57:21,824 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[417387,417400] [2020-12-22 08:57:21,841 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[421528,421541] [2020-12-22 08:57:21,981 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[455610,455623] [2020-12-22 08:57:22,045 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[472721,472734] [2020-12-22 08:57:22,081 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[481388,481401] [2020-12-22 08:57:22,100 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[485682,485695] [2020-12-22 08:57:22,119 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[489807,489820] [2020-12-22 08:57:22,193 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[508105,508118] [2020-12-22 08:57:22,226 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[516748,516761] [2020-12-22 08:57:22,243 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[521042,521055] [2020-12-22 08:57:22,261 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[525167,525180] [2020-12-22 08:57:22,281 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[530040,530053] [2020-12-22 08:57:22,299 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[534201,534214] [2020-12-22 08:57:22,320 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[538495,538508] [2020-12-22 08:57:22,339 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[542620,542633] [2020-12-22 08:57:22,401 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[547114,547127] [2020-12-22 08:57:22,419 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[551255,551268] [2020-12-22 08:57:22,440 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[555560,555573] [2020-12-22 08:57:22,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:57:22,543 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:57:23,088 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[146972,146985] [2020-12-22 08:57:23,317 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[216236,216249] [2020-12-22 08:57:23,445 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250865,250878] [2020-12-22 08:57:23,510 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[268214,268227] [2020-12-22 08:57:23,542 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[276889,276902] [2020-12-22 08:57:23,560 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[281198,281211] [2020-12-22 08:57:23,579 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[285338,285351] [2020-12-22 08:57:23,848 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[353429,353442] [2020-12-22 08:57:23,958 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[387290,387303] [2020-12-22 08:57:24,020 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[404398,404411] [2020-12-22 08:57:24,051 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[413077,413090] [2020-12-22 08:57:24,067 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[417387,417400] [2020-12-22 08:57:24,084 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[421528,421541] [2020-12-22 08:57:24,198 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[455610,455623] [2020-12-22 08:57:24,255 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[472721,472734] [2020-12-22 08:57:24,282 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[481388,481401] [2020-12-22 08:57:24,296 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[485682,485695] [2020-12-22 08:57:24,310 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[489807,489820] [2020-12-22 08:57:24,363 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[508105,508118] [2020-12-22 08:57:24,390 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[516748,516761] [2020-12-22 08:57:24,404 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[521042,521055] [2020-12-22 08:57:24,418 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[525167,525180] [2020-12-22 08:57:24,434 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[530040,530053] [2020-12-22 08:57:24,449 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[534201,534214] [2020-12-22 08:57:24,463 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[538495,538508] [2020-12-22 08:57:24,476 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[542620,542633] [2020-12-22 08:57:24,491 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[547114,547127] [2020-12-22 08:57:24,504 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[551255,551268] [2020-12-22 08:57:24,518 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[555560,555573] [2020-12-22 08:57:24,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:57:24,626 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:57:24,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24 WrapperNode [2020-12-22 08:57:24,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:57:24,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:57:24,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:57:24,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:57:24,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (1/1) ... [2020-12-22 08:57:24,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (1/1) ... [2020-12-22 08:57:25,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:57:25,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:57:25,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:57:25,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:57:25,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (1/1) ... [2020-12-22 08:57:25,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (1/1) ... [2020-12-22 08:57:25,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (1/1) ... [2020-12-22 08:57:25,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (1/1) ... [2020-12-22 08:57:25,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (1/1) ... [2020-12-22 08:57:25,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (1/1) ... [2020-12-22 08:57:25,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (1/1) ... [2020-12-22 08:57:25,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:57:25,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:57:25,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:57:25,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:57:25,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (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 08:57:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:57:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:57:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:57:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:57:48,383 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:57:48,384 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:57:48,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:57:48 BoogieIcfgContainer [2020-12-22 08:57:48,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:57:48,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:57:48,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:57:48,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:57:48,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:57:18" (1/3) ... [2020-12-22 08:57:48,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298e1700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:57:48, skipping insertion in model container [2020-12-22 08:57:48,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:57:24" (2/3) ... [2020-12-22 08:57:48,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298e1700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:57:48, skipping insertion in model container [2020-12-22 08:57:48,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:57:48" (3/3) ... [2020-12-22 08:57:48,402 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:57:48,408 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:57:48,416 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-12-22 08:57:48,437 INFO L253 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-12-22 08:57:48,482 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:57:48,483 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:57:48,483 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:57:48,483 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:57:48,483 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:57:48,483 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:57:48,483 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:57:48,484 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:57:48,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5023 states. [2020-12-22 08:57:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 08:57:48,634 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:48,635 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, 1, 1, 1] [2020-12-22 08:57:48,636 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:48,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:48,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1176206024, now seen corresponding path program 1 times [2020-12-22 08:57:48,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:48,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805487974] [2020-12-22 08:57:48,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:49,404 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 08:57:49,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805487974] [2020-12-22 08:57:49,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:49,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:57:49,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89099905] [2020-12-22 08:57:49,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:57:49,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:49,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:57:49,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:57:49,429 INFO L87 Difference]: Start difference. First operand 5023 states. Second operand 6 states. [2020-12-22 08:57:57,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:57,320 INFO L93 Difference]: Finished difference Result 6269 states and 11075 transitions. [2020-12-22 08:57:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:57,322 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-12-22 08:57:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:57,366 INFO L225 Difference]: With dead ends: 6269 [2020-12-22 08:57:57,366 INFO L226 Difference]: Without dead ends: 3798 [2020-12-22 08:57:57,378 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 08:57:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2020-12-22 08:57:57,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 3658. [2020-12-22 08:57:57,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3658 states. [2020-12-22 08:57:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 4863 transitions. [2020-12-22 08:57:57,634 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 4863 transitions. Word has length 101 [2020-12-22 08:57:57,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:57,636 INFO L481 AbstractCegarLoop]: Abstraction has 3658 states and 4863 transitions. [2020-12-22 08:57:57,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:57:57,636 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 4863 transitions. [2020-12-22 08:57:57,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 08:57:57,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:57,649 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, 1, 1, 1] [2020-12-22 08:57:57,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:57:57,650 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:57,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:57,651 INFO L82 PathProgramCache]: Analyzing trace with hash 2063346064, now seen corresponding path program 1 times [2020-12-22 08:57:57,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:57,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059556604] [2020-12-22 08:57:57,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:57,989 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 08:57:57,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059556604] [2020-12-22 08:57:57,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:57,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:57:57,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920410422] [2020-12-22 08:57:57,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:57:57,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:57,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:57:57,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:57:57,994 INFO L87 Difference]: Start difference. First operand 3658 states and 4863 transitions. Second operand 6 states. [2020-12-22 08:58:03,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:03,447 INFO L93 Difference]: Finished difference Result 5513 states and 7412 transitions. [2020-12-22 08:58:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:58:03,448 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-12-22 08:58:03,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:03,470 INFO L225 Difference]: With dead ends: 5513 [2020-12-22 08:58:03,470 INFO L226 Difference]: Without dead ends: 3885 [2020-12-22 08:58:03,475 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 08:58:03,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2020-12-22 08:58:03,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3745. [2020-12-22 08:58:03,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3745 states. [2020-12-22 08:58:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3745 states to 3745 states and 5158 transitions. [2020-12-22 08:58:03,615 INFO L78 Accepts]: Start accepts. Automaton has 3745 states and 5158 transitions. Word has length 101 [2020-12-22 08:58:03,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:03,616 INFO L481 AbstractCegarLoop]: Abstraction has 3745 states and 5158 transitions. [2020-12-22 08:58:03,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:58:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3745 states and 5158 transitions. [2020-12-22 08:58:03,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 08:58:03,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:03,625 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, 1, 1, 1] [2020-12-22 08:58:03,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:58:03,625 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:03,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:03,626 INFO L82 PathProgramCache]: Analyzing trace with hash 794421895, now seen corresponding path program 1 times [2020-12-22 08:58:03,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:03,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806870480] [2020-12-22 08:58:03,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:03,783 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 08:58:03,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806870480] [2020-12-22 08:58:03,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:03,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:58:03,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454757624] [2020-12-22 08:58:03,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:58:03,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:03,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:58:03,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:58:03,786 INFO L87 Difference]: Start difference. First operand 3745 states and 5158 transitions. Second operand 5 states. [2020-12-22 08:58:06,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:06,513 INFO L93 Difference]: Finished difference Result 4364 states and 5968 transitions. [2020-12-22 08:58:06,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:58:06,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-12-22 08:58:06,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:06,527 INFO L225 Difference]: With dead ends: 4364 [2020-12-22 08:58:06,527 INFO L226 Difference]: Without dead ends: 2546 [2020-12-22 08:58:06,531 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 08:58:06,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2020-12-22 08:58:06,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 2546. [2020-12-22 08:58:06,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2546 states. [2020-12-22 08:58:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3561 transitions. [2020-12-22 08:58:06,631 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3561 transitions. Word has length 101 [2020-12-22 08:58:06,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:06,631 INFO L481 AbstractCegarLoop]: Abstraction has 2546 states and 3561 transitions. [2020-12-22 08:58:06,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:58:06,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3561 transitions. [2020-12-22 08:58:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 08:58:06,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:06,637 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, 1, 1, 1, 1] [2020-12-22 08:58:06,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:58:06,638 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:06,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:06,639 INFO L82 PathProgramCache]: Analyzing trace with hash 761873889, now seen corresponding path program 1 times [2020-12-22 08:58:06,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:06,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901498329] [2020-12-22 08:58:06,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:06,801 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 08:58:06,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901498329] [2020-12-22 08:58:06,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:06,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:58:06,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628325488] [2020-12-22 08:58:06,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:58:06,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:06,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:58:06,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:58:06,804 INFO L87 Difference]: Start difference. First operand 2546 states and 3561 transitions. Second operand 6 states. [2020-12-22 08:58:10,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:10,107 INFO L93 Difference]: Finished difference Result 5176 states and 7348 transitions. [2020-12-22 08:58:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:58:10,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-12-22 08:58:10,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:10,128 INFO L225 Difference]: With dead ends: 5176 [2020-12-22 08:58:10,129 INFO L226 Difference]: Without dead ends: 3691 [2020-12-22 08:58:10,134 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 08:58:10,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2020-12-22 08:58:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 3589. [2020-12-22 08:58:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3589 states. [2020-12-22 08:58:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 5169 transitions. [2020-12-22 08:58:10,291 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 5169 transitions. Word has length 102 [2020-12-22 08:58:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:10,292 INFO L481 AbstractCegarLoop]: Abstraction has 3589 states and 5169 transitions. [2020-12-22 08:58:10,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:58:10,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 5169 transitions. [2020-12-22 08:58:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 08:58:10,298 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:10,298 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, 1, 1, 1, 1, 1] [2020-12-22 08:58:10,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:58:10,299 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:10,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:10,299 INFO L82 PathProgramCache]: Analyzing trace with hash -186891861, now seen corresponding path program 1 times [2020-12-22 08:58:10,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:10,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764239431] [2020-12-22 08:58:10,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:10,479 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 08:58:10,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764239431] [2020-12-22 08:58:10,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:10,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:58:10,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038629934] [2020-12-22 08:58:10,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:58:10,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:10,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:58:10,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:58:10,482 INFO L87 Difference]: Start difference. First operand 3589 states and 5169 transitions. Second operand 6 states. [2020-12-22 08:58:13,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:13,339 INFO L93 Difference]: Finished difference Result 6386 states and 9084 transitions. [2020-12-22 08:58:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:58:13,340 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2020-12-22 08:58:13,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:13,358 INFO L225 Difference]: With dead ends: 6386 [2020-12-22 08:58:13,359 INFO L226 Difference]: Without dead ends: 4732 [2020-12-22 08:58:13,364 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 08:58:13,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4732 states. [2020-12-22 08:58:13,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4632. [2020-12-22 08:58:13,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-12-22 08:58:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 6590 transitions. [2020-12-22 08:58:13,594 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 6590 transitions. Word has length 103 [2020-12-22 08:58:13,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:13,594 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 6590 transitions. [2020-12-22 08:58:13,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:58:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 6590 transitions. [2020-12-22 08:58:13,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-22 08:58:13,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:13,601 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, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:13,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:58:13,602 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:13,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:13,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1202667165, now seen corresponding path program 1 times [2020-12-22 08:58:13,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:13,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907233297] [2020-12-22 08:58:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:13,738 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 08:58:13,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907233297] [2020-12-22 08:58:13,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:13,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:58:13,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11822678] [2020-12-22 08:58:13,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:58:13,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:13,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:58:13,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:58:13,741 INFO L87 Difference]: Start difference. First operand 4632 states and 6590 transitions. Second operand 5 states. [2020-12-22 08:58:15,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:15,799 INFO L93 Difference]: Finished difference Result 6947 states and 9976 transitions. [2020-12-22 08:58:15,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:58:15,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-12-22 08:58:15,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:15,816 INFO L225 Difference]: With dead ends: 6947 [2020-12-22 08:58:15,816 INFO L226 Difference]: Without dead ends: 4474 [2020-12-22 08:58:15,821 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 08:58:15,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2020-12-22 08:58:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 4474. [2020-12-22 08:58:16,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4474 states. [2020-12-22 08:58:16,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4474 states to 4474 states and 6372 transitions. [2020-12-22 08:58:16,053 INFO L78 Accepts]: Start accepts. Automaton has 4474 states and 6372 transitions. Word has length 104 [2020-12-22 08:58:16,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:16,054 INFO L481 AbstractCegarLoop]: Abstraction has 4474 states and 6372 transitions. [2020-12-22 08:58:16,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:58:16,054 INFO L276 IsEmpty]: Start isEmpty. Operand 4474 states and 6372 transitions. [2020-12-22 08:58:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-22 08:58:16,063 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:16,063 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:16,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:58:16,064 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:16,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:16,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1054098752, now seen corresponding path program 1 times [2020-12-22 08:58:16,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:16,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262854915] [2020-12-22 08:58:16,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:16,254 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 08:58:16,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262854915] [2020-12-22 08:58:16,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:16,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:58:16,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728904121] [2020-12-22 08:58:16,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:58:16,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:16,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:58:16,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:58:16,267 INFO L87 Difference]: Start difference. First operand 4474 states and 6372 transitions. Second operand 5 states. [2020-12-22 08:58:18,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:18,303 INFO L93 Difference]: Finished difference Result 7271 states and 10428 transitions. [2020-12-22 08:58:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:58:18,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-12-22 08:58:18,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:18,332 INFO L225 Difference]: With dead ends: 7271 [2020-12-22 08:58:18,332 INFO L226 Difference]: Without dead ends: 4416 [2020-12-22 08:58:18,337 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 08:58:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4416 states. [2020-12-22 08:58:18,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4416 to 4416. [2020-12-22 08:58:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4416 states. [2020-12-22 08:58:18,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4416 states to 4416 states and 6285 transitions. [2020-12-22 08:58:18,579 INFO L78 Accepts]: Start accepts. Automaton has 4416 states and 6285 transitions. Word has length 105 [2020-12-22 08:58:18,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:18,579 INFO L481 AbstractCegarLoop]: Abstraction has 4416 states and 6285 transitions. [2020-12-22 08:58:18,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:58:18,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4416 states and 6285 transitions. [2020-12-22 08:58:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-22 08:58:18,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:18,587 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:18,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:58:18,588 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:18,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:18,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1784080565, now seen corresponding path program 1 times [2020-12-22 08:58:18,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:18,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741750887] [2020-12-22 08:58:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:18,967 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 08:58:18,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741750887] [2020-12-22 08:58:18,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:18,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:18,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813814155] [2020-12-22 08:58:18,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:18,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:18,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:18,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:18,971 INFO L87 Difference]: Start difference. First operand 4416 states and 6285 transitions. Second operand 9 states. [2020-12-22 08:58:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:25,824 INFO L93 Difference]: Finished difference Result 11209 states and 16363 transitions. [2020-12-22 08:58:25,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:25,825 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2020-12-22 08:58:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:25,854 INFO L225 Difference]: With dead ends: 11209 [2020-12-22 08:58:25,855 INFO L226 Difference]: Without dead ends: 9847 [2020-12-22 08:58:25,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:58:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9847 states. [2020-12-22 08:58:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9847 to 4416. [2020-12-22 08:58:26,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4416 states. [2020-12-22 08:58:26,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4416 states to 4416 states and 6284 transitions. [2020-12-22 08:58:26,257 INFO L78 Accepts]: Start accepts. Automaton has 4416 states and 6284 transitions. Word has length 106 [2020-12-22 08:58:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:26,257 INFO L481 AbstractCegarLoop]: Abstraction has 4416 states and 6284 transitions. [2020-12-22 08:58:26,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:26,257 INFO L276 IsEmpty]: Start isEmpty. Operand 4416 states and 6284 transitions. [2020-12-22 08:58:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-22 08:58:26,263 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:26,264 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:26,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:58:26,268 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:26,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:26,269 INFO L82 PathProgramCache]: Analyzing trace with hash -93884374, now seen corresponding path program 1 times [2020-12-22 08:58:26,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:26,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390595923] [2020-12-22 08:58:26,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:26,574 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 08:58:26,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390595923] [2020-12-22 08:58:26,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:26,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:26,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265400009] [2020-12-22 08:58:26,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:26,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:26,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:26,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:26,577 INFO L87 Difference]: Start difference. First operand 4416 states and 6284 transitions. Second operand 9 states. [2020-12-22 08:58:32,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:32,765 INFO L93 Difference]: Finished difference Result 11220 states and 16376 transitions. [2020-12-22 08:58:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:32,766 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2020-12-22 08:58:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:32,789 INFO L225 Difference]: With dead ends: 11220 [2020-12-22 08:58:32,790 INFO L226 Difference]: Without dead ends: 9847 [2020-12-22 08:58:32,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:58:32,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9847 states. [2020-12-22 08:58:33,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9847 to 4416. [2020-12-22 08:58:33,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4416 states. [2020-12-22 08:58:33,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4416 states to 4416 states and 6283 transitions. [2020-12-22 08:58:33,386 INFO L78 Accepts]: Start accepts. Automaton has 4416 states and 6283 transitions. Word has length 106 [2020-12-22 08:58:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:33,387 INFO L481 AbstractCegarLoop]: Abstraction has 4416 states and 6283 transitions. [2020-12-22 08:58:33,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:33,387 INFO L276 IsEmpty]: Start isEmpty. Operand 4416 states and 6283 transitions. [2020-12-22 08:58:33,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-22 08:58:33,394 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:33,395 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:33,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:58:33,395 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:33,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:33,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1475113997, now seen corresponding path program 1 times [2020-12-22 08:58:33,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:33,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274543620] [2020-12-22 08:58:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:33,722 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 08:58:33,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274543620] [2020-12-22 08:58:33,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:33,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:33,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428631059] [2020-12-22 08:58:33,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:33,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:33,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:33,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:33,724 INFO L87 Difference]: Start difference. First operand 4416 states and 6283 transitions. Second operand 9 states. [2020-12-22 08:58:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:40,128 INFO L93 Difference]: Finished difference Result 8953 states and 13024 transitions. [2020-12-22 08:58:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:40,129 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2020-12-22 08:58:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:40,146 INFO L225 Difference]: With dead ends: 8953 [2020-12-22 08:58:40,146 INFO L226 Difference]: Without dead ends: 7122 [2020-12-22 08:58:40,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:58:40,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7122 states. [2020-12-22 08:58:40,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7122 to 4416. [2020-12-22 08:58:40,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4416 states. [2020-12-22 08:58:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4416 states to 4416 states and 6282 transitions. [2020-12-22 08:58:40,577 INFO L78 Accepts]: Start accepts. Automaton has 4416 states and 6282 transitions. Word has length 106 [2020-12-22 08:58:40,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:40,577 INFO L481 AbstractCegarLoop]: Abstraction has 4416 states and 6282 transitions. [2020-12-22 08:58:40,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:40,578 INFO L276 IsEmpty]: Start isEmpty. Operand 4416 states and 6282 transitions. [2020-12-22 08:58:40,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-22 08:58:40,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:40,583 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:40,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:58:40,584 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:40,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:40,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1447789183, now seen corresponding path program 1 times [2020-12-22 08:58:40,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:40,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603741390] [2020-12-22 08:58:40,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:40,871 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 08:58:40,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603741390] [2020-12-22 08:58:40,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:40,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:58:40,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625771421] [2020-12-22 08:58:40,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:58:40,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:40,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:58:40,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:58:40,873 INFO L87 Difference]: Start difference. First operand 4416 states and 6282 transitions. Second operand 8 states. [2020-12-22 08:58:44,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:44,783 INFO L93 Difference]: Finished difference Result 6542 states and 9375 transitions. [2020-12-22 08:58:44,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:58:44,784 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2020-12-22 08:58:44,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:44,796 INFO L225 Difference]: With dead ends: 6542 [2020-12-22 08:58:44,796 INFO L226 Difference]: Without dead ends: 4188 [2020-12-22 08:58:44,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:58:44,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4188 states. [2020-12-22 08:58:45,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4188 to 3444. [2020-12-22 08:58:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3444 states. [2020-12-22 08:58:45,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4902 transitions. [2020-12-22 08:58:45,137 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4902 transitions. Word has length 106 [2020-12-22 08:58:45,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:45,137 INFO L481 AbstractCegarLoop]: Abstraction has 3444 states and 4902 transitions. [2020-12-22 08:58:45,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:58:45,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4902 transitions. [2020-12-22 08:58:45,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-22 08:58:45,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:45,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:45,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:58:45,143 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:45,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:45,144 INFO L82 PathProgramCache]: Analyzing trace with hash 166479194, now seen corresponding path program 1 times [2020-12-22 08:58:45,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:45,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923680921] [2020-12-22 08:58:45,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:45,390 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 08:58:45,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923680921] [2020-12-22 08:58:45,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:45,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:45,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232869782] [2020-12-22 08:58:45,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:45,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:45,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:45,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:45,394 INFO L87 Difference]: Start difference. First operand 3444 states and 4902 transitions. Second operand 9 states. [2020-12-22 08:58:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:52,884 INFO L93 Difference]: Finished difference Result 10015 states and 14658 transitions. [2020-12-22 08:58:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:52,886 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-12-22 08:58:52,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:52,900 INFO L225 Difference]: With dead ends: 10015 [2020-12-22 08:58:52,900 INFO L226 Difference]: Without dead ends: 8521 [2020-12-22 08:58:52,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:58:52,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8521 states. [2020-12-22 08:58:53,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8521 to 3444. [2020-12-22 08:58:53,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3444 states. [2020-12-22 08:58:53,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4901 transitions. [2020-12-22 08:58:53,399 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4901 transitions. Word has length 108 [2020-12-22 08:58:53,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:53,400 INFO L481 AbstractCegarLoop]: Abstraction has 3444 states and 4901 transitions. [2020-12-22 08:58:53,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:53,400 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4901 transitions. [2020-12-22 08:58:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-22 08:58:53,404 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:53,404 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:53,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:58:53,405 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:53,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:53,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1568327130, now seen corresponding path program 1 times [2020-12-22 08:58:53,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:53,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71266480] [2020-12-22 08:58:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:53,653 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 08:58:53,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71266480] [2020-12-22 08:58:53,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:53,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:53,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203897113] [2020-12-22 08:58:53,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:53,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:53,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:53,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:53,656 INFO L87 Difference]: Start difference. First operand 3444 states and 4901 transitions. Second operand 9 states. [2020-12-22 08:59:01,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:01,065 INFO L93 Difference]: Finished difference Result 9777 states and 14326 transitions. [2020-12-22 08:59:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:59:01,066 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-12-22 08:59:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:01,081 INFO L225 Difference]: With dead ends: 9777 [2020-12-22 08:59:01,081 INFO L226 Difference]: Without dead ends: 8415 [2020-12-22 08:59:01,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:59:01,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8415 states. [2020-12-22 08:59:01,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8415 to 3444. [2020-12-22 08:59:01,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3444 states. [2020-12-22 08:59:01,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4900 transitions. [2020-12-22 08:59:01,623 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4900 transitions. Word has length 108 [2020-12-22 08:59:01,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:01,623 INFO L481 AbstractCegarLoop]: Abstraction has 3444 states and 4900 transitions. [2020-12-22 08:59:01,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4900 transitions. [2020-12-22 08:59:01,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-22 08:59:01,627 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:01,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:01,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:59:01,628 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:01,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:01,628 INFO L82 PathProgramCache]: Analyzing trace with hash 2048480592, now seen corresponding path program 1 times [2020-12-22 08:59:01,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:01,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155808879] [2020-12-22 08:59:01,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:01,990 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 08:59:01,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155808879] [2020-12-22 08:59:01,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:01,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:59:01,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029378470] [2020-12-22 08:59:01,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:59:01,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:01,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:59:01,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:59:01,995 INFO L87 Difference]: Start difference. First operand 3444 states and 4900 transitions. Second operand 11 states. [2020-12-22 08:59:11,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:11,200 INFO L93 Difference]: Finished difference Result 8810 states and 12800 transitions. [2020-12-22 08:59:11,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:59:11,201 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-12-22 08:59:11,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:11,209 INFO L225 Difference]: With dead ends: 8810 [2020-12-22 08:59:11,209 INFO L226 Difference]: Without dead ends: 6912 [2020-12-22 08:59:11,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-12-22 08:59:11,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6912 states. [2020-12-22 08:59:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6912 to 3448. [2020-12-22 08:59:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3448 states. [2020-12-22 08:59:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4904 transitions. [2020-12-22 08:59:11,531 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4904 transitions. Word has length 108 [2020-12-22 08:59:11,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:11,531 INFO L481 AbstractCegarLoop]: Abstraction has 3448 states and 4904 transitions. [2020-12-22 08:59:11,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:59:11,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4904 transitions. [2020-12-22 08:59:11,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-22 08:59:11,534 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:11,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:11,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:59:11,535 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:11,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1013800078, now seen corresponding path program 1 times [2020-12-22 08:59:11,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:11,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517162189] [2020-12-22 08:59:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:11,965 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 08:59:11,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517162189] [2020-12-22 08:59:11,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:11,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:59:11,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722870885] [2020-12-22 08:59:11,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:59:11,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:11,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:59:11,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:59:11,967 INFO L87 Difference]: Start difference. First operand 3448 states and 4904 transitions. Second operand 11 states. [2020-12-22 08:59:12,334 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2020-12-22 08:59:12,705 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-22 08:59:20,057 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-12-22 08:59:28,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:28,791 INFO L93 Difference]: Finished difference Result 21525 states and 31931 transitions. [2020-12-22 08:59:28,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:59:28,792 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-12-22 08:59:28,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:28,815 INFO L225 Difference]: With dead ends: 21525 [2020-12-22 08:59:28,815 INFO L226 Difference]: Without dead ends: 19956 [2020-12-22 08:59:28,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:59:28,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19956 states. [2020-12-22 08:59:29,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19956 to 3452. [2020-12-22 08:59:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3452 states. [2020-12-22 08:59:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 4908 transitions. [2020-12-22 08:59:29,406 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 4908 transitions. Word has length 108 [2020-12-22 08:59:29,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:29,406 INFO L481 AbstractCegarLoop]: Abstraction has 3452 states and 4908 transitions. [2020-12-22 08:59:29,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:59:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 4908 transitions. [2020-12-22 08:59:29,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-22 08:59:29,410 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:29,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:29,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:59:29,411 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:29,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:29,411 INFO L82 PathProgramCache]: Analyzing trace with hash 599824408, now seen corresponding path program 1 times [2020-12-22 08:59:29,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:29,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64436796] [2020-12-22 08:59:29,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:29,688 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 08:59:29,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64436796] [2020-12-22 08:59:29,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:29,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:29,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872537174] [2020-12-22 08:59:29,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:29,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:29,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:29,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:29,690 INFO L87 Difference]: Start difference. First operand 3452 states and 4908 transitions. Second operand 9 states. [2020-12-22 08:59:37,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:37,081 INFO L93 Difference]: Finished difference Result 9779 states and 14328 transitions. [2020-12-22 08:59:37,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:59:37,082 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-12-22 08:59:37,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:37,090 INFO L225 Difference]: With dead ends: 9779 [2020-12-22 08:59:37,090 INFO L226 Difference]: Without dead ends: 8423 [2020-12-22 08:59:37,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:59:37,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8423 states. [2020-12-22 08:59:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8423 to 3452. [2020-12-22 08:59:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3452 states. [2020-12-22 08:59:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 4907 transitions. [2020-12-22 08:59:37,589 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 4907 transitions. Word has length 108 [2020-12-22 08:59:37,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:37,590 INFO L481 AbstractCegarLoop]: Abstraction has 3452 states and 4907 transitions. [2020-12-22 08:59:37,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 4907 transitions. [2020-12-22 08:59:37,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-22 08:59:37,594 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:37,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:37,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:59:37,595 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:37,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:37,595 INFO L82 PathProgramCache]: Analyzing trace with hash -187390256, now seen corresponding path program 1 times [2020-12-22 08:59:37,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:37,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759867648] [2020-12-22 08:59:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:37,844 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 08:59:37,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759867648] [2020-12-22 08:59:37,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:37,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:37,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047060212] [2020-12-22 08:59:37,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:37,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:37,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:37,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:37,847 INFO L87 Difference]: Start difference. First operand 3452 states and 4907 transitions. Second operand 9 states. [2020-12-22 08:59:45,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:45,477 INFO L93 Difference]: Finished difference Result 10041 states and 14692 transitions. [2020-12-22 08:59:45,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:59:45,478 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-12-22 08:59:45,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:45,486 INFO L225 Difference]: With dead ends: 10041 [2020-12-22 08:59:45,486 INFO L226 Difference]: Without dead ends: 8525 [2020-12-22 08:59:45,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:59:45,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8525 states. [2020-12-22 08:59:45,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8525 to 3452. [2020-12-22 08:59:45,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3452 states. [2020-12-22 08:59:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 4906 transitions. [2020-12-22 08:59:45,935 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 4906 transitions. Word has length 108 [2020-12-22 08:59:45,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:45,936 INFO L481 AbstractCegarLoop]: Abstraction has 3452 states and 4906 transitions. [2020-12-22 08:59:45,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:45,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 4906 transitions. [2020-12-22 08:59:45,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 08:59:45,938 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:45,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:45,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:59:45,939 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:45,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:45,940 INFO L82 PathProgramCache]: Analyzing trace with hash 162896375, now seen corresponding path program 1 times [2020-12-22 08:59:45,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:45,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511740929] [2020-12-22 08:59:45,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:46,204 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 08:59:46,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511740929] [2020-12-22 08:59:46,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:46,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:46,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298318722] [2020-12-22 08:59:46,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:46,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:46,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:46,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:46,207 INFO L87 Difference]: Start difference. First operand 3452 states and 4906 transitions. Second operand 9 states. [2020-12-22 08:59:52,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:52,252 INFO L93 Difference]: Finished difference Result 7302 states and 10645 transitions. [2020-12-22 08:59:52,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:59:52,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-12-22 08:59:52,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:52,258 INFO L225 Difference]: With dead ends: 7302 [2020-12-22 08:59:52,258 INFO L226 Difference]: Without dead ends: 5404 [2020-12-22 08:59:52,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:59:52,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2020-12-22 08:59:52,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 3448. [2020-12-22 08:59:52,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3448 states. [2020-12-22 08:59:52,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4901 transitions. [2020-12-22 08:59:52,689 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4901 transitions. Word has length 109 [2020-12-22 08:59:52,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:52,690 INFO L481 AbstractCegarLoop]: Abstraction has 3448 states and 4901 transitions. [2020-12-22 08:59:52,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:52,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4901 transitions. [2020-12-22 08:59:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 08:59:52,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:52,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:52,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:59:52,694 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:52,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:52,694 INFO L82 PathProgramCache]: Analyzing trace with hash -381109458, now seen corresponding path program 1 times [2020-12-22 08:59:52,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:52,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070715256] [2020-12-22 08:59:52,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:52,954 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 08:59:52,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070715256] [2020-12-22 08:59:52,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:52,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:52,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977462396] [2020-12-22 08:59:52,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:52,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:52,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:52,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:52,959 INFO L87 Difference]: Start difference. First operand 3448 states and 4901 transitions. Second operand 9 states. [2020-12-22 09:00:01,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:01,600 INFO L93 Difference]: Finished difference Result 10090 states and 14756 transitions. [2020-12-22 09:00:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 09:00:01,601 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-12-22 09:00:01,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:01,609 INFO L225 Difference]: With dead ends: 10090 [2020-12-22 09:00:01,609 INFO L226 Difference]: Without dead ends: 8521 [2020-12-22 09:00:01,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 09:00:01,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8521 states. [2020-12-22 09:00:02,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8521 to 3444. [2020-12-22 09:00:02,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3444 states. [2020-12-22 09:00:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4896 transitions. [2020-12-22 09:00:02,095 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4896 transitions. Word has length 109 [2020-12-22 09:00:02,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:02,095 INFO L481 AbstractCegarLoop]: Abstraction has 3444 states and 4896 transitions. [2020-12-22 09:00:02,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 09:00:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4896 transitions. [2020-12-22 09:00:02,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 09:00:02,098 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:02,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:02,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 09:00:02,099 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:02,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:02,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1007860577, now seen corresponding path program 1 times [2020-12-22 09:00:02,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:02,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798852141] [2020-12-22 09:00:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:02,381 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 09:00:02,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798852141] [2020-12-22 09:00:02,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:02,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:02,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941390572] [2020-12-22 09:00:02,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:02,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:02,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:02,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:02,384 INFO L87 Difference]: Start difference. First operand 3444 states and 4896 transitions. Second operand 9 states. [2020-12-22 09:00:10,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:10,429 INFO L93 Difference]: Finished difference Result 7460 states and 10914 transitions. [2020-12-22 09:00:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 09:00:10,430 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-12-22 09:00:10,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:10,435 INFO L225 Difference]: With dead ends: 7460 [2020-12-22 09:00:10,435 INFO L226 Difference]: Without dead ends: 6150 [2020-12-22 09:00:10,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 09:00:10,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2020-12-22 09:00:10,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 3444. [2020-12-22 09:00:10,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3444 states. [2020-12-22 09:00:10,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4895 transitions. [2020-12-22 09:00:10,913 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4895 transitions. Word has length 110 [2020-12-22 09:00:10,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:10,913 INFO L481 AbstractCegarLoop]: Abstraction has 3444 states and 4895 transitions. [2020-12-22 09:00:10,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 09:00:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4895 transitions. [2020-12-22 09:00:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 09:00:10,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:10,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:10,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 09:00:10,951 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:10,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:10,951 INFO L82 PathProgramCache]: Analyzing trace with hash 440183832, now seen corresponding path program 1 times [2020-12-22 09:00:10,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:10,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373613042] [2020-12-22 09:00:10,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:11,291 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 09:00:11,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373613042] [2020-12-22 09:00:11,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:11,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 09:00:11,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760884093] [2020-12-22 09:00:11,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 09:00:11,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:11,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 09:00:11,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 09:00:11,293 INFO L87 Difference]: Start difference. First operand 3444 states and 4895 transitions. Second operand 11 states. [2020-12-22 09:00:11,421 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-22 09:00:11,736 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-12-22 09:00:12,183 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-12-22 09:00:13,130 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-22 09:00:16,958 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 31 [2020-12-22 09:00:18,595 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2020-12-22 09:00:19,821 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-12-22 09:00:21,522 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-22 09:00:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:29,664 INFO L93 Difference]: Finished difference Result 24533 states and 36384 transitions. [2020-12-22 09:00:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 09:00:29,665 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2020-12-22 09:00:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:29,684 INFO L225 Difference]: With dead ends: 24533 [2020-12-22 09:00:29,685 INFO L226 Difference]: Without dead ends: 23173 [2020-12-22 09:00:29,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 09:00:29,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23173 states. [2020-12-22 09:00:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23173 to 3448. [2020-12-22 09:00:30,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3448 states. [2020-12-22 09:00:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4899 transitions. [2020-12-22 09:00:30,344 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4899 transitions. Word has length 110 [2020-12-22 09:00:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:30,344 INFO L481 AbstractCegarLoop]: Abstraction has 3448 states and 4899 transitions. [2020-12-22 09:00:30,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 09:00:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4899 transitions. [2020-12-22 09:00:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 09:00:30,346 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:30,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:30,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 09:00:30,347 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:30,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:30,347 INFO L82 PathProgramCache]: Analyzing trace with hash 710747051, now seen corresponding path program 1 times [2020-12-22 09:00:30,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:30,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421730251] [2020-12-22 09:00:30,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:30,611 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 09:00:30,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421730251] [2020-12-22 09:00:30,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:30,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:30,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388931324] [2020-12-22 09:00:30,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:30,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:30,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:30,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:30,614 INFO L87 Difference]: Start difference. First operand 3448 states and 4899 transitions. Second operand 9 states. [2020-12-22 09:00:39,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:39,662 INFO L93 Difference]: Finished difference Result 7486 states and 10948 transitions. [2020-12-22 09:00:39,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 09:00:39,663 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-12-22 09:00:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:39,671 INFO L225 Difference]: With dead ends: 7486 [2020-12-22 09:00:39,671 INFO L226 Difference]: Without dead ends: 6154 [2020-12-22 09:00:39,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 09:00:39,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2020-12-22 09:00:40,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 3448. [2020-12-22 09:00:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3448 states. [2020-12-22 09:00:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4897 transitions. [2020-12-22 09:00:40,329 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4897 transitions. Word has length 110 [2020-12-22 09:00:40,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:40,329 INFO L481 AbstractCegarLoop]: Abstraction has 3448 states and 4897 transitions. [2020-12-22 09:00:40,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 09:00:40,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4897 transitions. [2020-12-22 09:00:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 09:00:40,332 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:40,333 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:40,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 09:00:40,333 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:40,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:40,333 INFO L82 PathProgramCache]: Analyzing trace with hash -742843731, now seen corresponding path program 1 times [2020-12-22 09:00:40,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:40,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431354807] [2020-12-22 09:00:40,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:40,675 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 09:00:40,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431354807] [2020-12-22 09:00:40,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:40,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:40,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701695211] [2020-12-22 09:00:40,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:40,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:40,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:40,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:40,678 INFO L87 Difference]: Start difference. First operand 3448 states and 4897 transitions. Second operand 9 states. [2020-12-22 09:00:49,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:49,483 INFO L93 Difference]: Finished difference Result 7460 states and 10912 transitions. [2020-12-22 09:00:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 09:00:49,484 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-12-22 09:00:49,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:49,492 INFO L225 Difference]: With dead ends: 7460 [2020-12-22 09:00:49,493 INFO L226 Difference]: Without dead ends: 6154 [2020-12-22 09:00:49,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 09:00:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2020-12-22 09:00:50,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 3448. [2020-12-22 09:00:50,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3448 states. [2020-12-22 09:00:50,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4896 transitions. [2020-12-22 09:00:50,203 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4896 transitions. Word has length 110 [2020-12-22 09:00:50,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:50,204 INFO L481 AbstractCegarLoop]: Abstraction has 3448 states and 4896 transitions. [2020-12-22 09:00:50,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 09:00:50,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4896 transitions. [2020-12-22 09:00:50,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 09:00:50,207 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:50,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:50,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 09:00:50,207 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:50,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:50,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1547864661, now seen corresponding path program 1 times [2020-12-22 09:00:50,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:50,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312827307] [2020-12-22 09:00:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:50,504 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 09:00:50,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312827307] [2020-12-22 09:00:50,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:50,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:50,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432028120] [2020-12-22 09:00:50,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:50,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:50,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:50,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:50,510 INFO L87 Difference]: Start difference. First operand 3448 states and 4896 transitions. Second operand 9 states. [2020-12-22 09:00:58,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:58,993 INFO L93 Difference]: Finished difference Result 7468 states and 10920 transitions. [2020-12-22 09:00:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 09:00:58,994 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-12-22 09:00:58,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:59,000 INFO L225 Difference]: With dead ends: 7468 [2020-12-22 09:00:59,001 INFO L226 Difference]: Without dead ends: 6154 [2020-12-22 09:00:59,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 09:00:59,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2020-12-22 09:00:59,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 3448. [2020-12-22 09:00:59,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3448 states. [2020-12-22 09:00:59,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4895 transitions. [2020-12-22 09:00:59,644 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4895 transitions. Word has length 110 [2020-12-22 09:00:59,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:59,645 INFO L481 AbstractCegarLoop]: Abstraction has 3448 states and 4895 transitions. [2020-12-22 09:00:59,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 09:00:59,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4895 transitions. [2020-12-22 09:00:59,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 09:00:59,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:59,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:59,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 09:00:59,648 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:59,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:59,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1996058189, now seen corresponding path program 1 times [2020-12-22 09:00:59,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:59,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345555665] [2020-12-22 09:00:59,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:59,908 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 09:00:59,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345555665] [2020-12-22 09:00:59,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:59,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:59,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127256892] [2020-12-22 09:00:59,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:59,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:59,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:59,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:59,910 INFO L87 Difference]: Start difference. First operand 3448 states and 4895 transitions. Second operand 9 states.