/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.BOUNDED-14.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:56:29,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:56:29,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:56:30,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:56:30,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:56:30,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:56:30,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:56:30,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:56:30,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:56:30,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:56:30,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:56:30,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:56:30,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:56:30,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:56:30,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:56:30,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:56:30,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:56:30,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:56:30,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:56:30,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:56:30,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:56:30,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:56:30,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:56:30,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:56:30,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:56:30,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:56:30,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:56:30,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:56:30,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:56:30,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:56:30,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:56:30,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:56:30,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:56:30,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:56:30,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:56:30,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:56:30,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:56:30,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:56:30,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:56:30,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:56:30,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:56:30,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:56:30,111 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:56:30,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:56:30,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:56:30,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:56:30,114 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:56:30,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:56:30,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:56:30,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:56:30,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:56:30,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:56:30,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:56:30,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:56:30,116 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:56:30,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:56:30,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:56:30,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:56:30,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:56:30,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:56:30,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:56:30,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:56:30,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:56:30,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:56:30,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:56:30,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:56:30,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:56:30,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:56:30,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:56:30,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:56:30,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:56:30,595 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:56:30,596 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:56:30,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c [2020-12-22 08:56:30,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70b03061a/5f9c536c241e4d7cae3ab2484eb1a0a9/FLAG4382b02e0 [2020-12-22 08:56:32,178 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:56:32,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c [2020-12-22 08:56:32,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70b03061a/5f9c536c241e4d7cae3ab2484eb1a0a9/FLAG4382b02e0 [2020-12-22 08:56:32,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70b03061a/5f9c536c241e4d7cae3ab2484eb1a0a9 [2020-12-22 08:56:32,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:56:32,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:56:32,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:56:32,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:56:32,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:56:32,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:56:32" (1/1) ... [2020-12-22 08:56:32,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f18ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:32, skipping insertion in model container [2020-12-22 08:56:32,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:56:32" (1/1) ... [2020-12-22 08:56:32,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:56:33,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:56:34,678 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.BOUNDED-14.pals.c.v+sep-reducer.c[171756,171769] [2020-12-22 08:56:34,984 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.BOUNDED-14.pals.c.v+sep-reducer.c[249795,249808] [2020-12-22 08:56:35,126 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.BOUNDED-14.pals.c.v+sep-reducer.c[289018,289031] [2020-12-22 08:56:35,194 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.BOUNDED-14.pals.c.v+sep-reducer.c[308729,308742] [2020-12-22 08:56:35,229 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.BOUNDED-14.pals.c.v+sep-reducer.c[318607,318620] [2020-12-22 08:56:35,247 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.BOUNDED-14.pals.c.v+sep-reducer.c[323518,323531] [2020-12-22 08:56:35,265 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.BOUNDED-14.pals.c.v+sep-reducer.c[328346,328359] [2020-12-22 08:56:35,534 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.BOUNDED-14.pals.c.v+sep-reducer.c[404781,404794] [2020-12-22 08:56:35,667 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.BOUNDED-14.pals.c.v+sep-reducer.c[443149,443162] [2020-12-22 08:56:35,736 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.BOUNDED-14.pals.c.v+sep-reducer.c[462661,462674] [2020-12-22 08:56:35,773 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.BOUNDED-14.pals.c.v+sep-reducer.c[472585,472598] [2020-12-22 08:56:35,792 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.BOUNDED-14.pals.c.v+sep-reducer.c[477539,477552] [2020-12-22 08:56:35,816 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.BOUNDED-14.pals.c.v+sep-reducer.c[482410,482423] [2020-12-22 08:56:35,973 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.BOUNDED-14.pals.c.v+sep-reducer.c[520916,520929] [2020-12-22 08:56:36,048 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.BOUNDED-14.pals.c.v+sep-reducer.c[540434,540447] [2020-12-22 08:56:36,088 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.BOUNDED-14.pals.c.v+sep-reducer.c[550358,550371] [2020-12-22 08:56:36,107 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.BOUNDED-14.pals.c.v+sep-reducer.c[555312,555325] [2020-12-22 08:56:36,128 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.BOUNDED-14.pals.c.v+sep-reducer.c[560171,560184] [2020-12-22 08:56:36,224 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.BOUNDED-14.pals.c.v+sep-reducer.c[580917,580930] [2020-12-22 08:56:36,338 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.BOUNDED-14.pals.c.v+sep-reducer.c[590784,590797] [2020-12-22 08:56:36,357 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.BOUNDED-14.pals.c.v+sep-reducer.c[595711,595724] [2020-12-22 08:56:36,377 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.BOUNDED-14.pals.c.v+sep-reducer.c[600553,600566] [2020-12-22 08:56:36,399 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.BOUNDED-14.pals.c.v+sep-reducer.c[605975,605988] [2020-12-22 08:56:36,418 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.BOUNDED-14.pals.c.v+sep-reducer.c[610811,610824] [2020-12-22 08:56:36,438 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.BOUNDED-14.pals.c.v+sep-reducer.c[615738,615751] [2020-12-22 08:56:36,455 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.BOUNDED-14.pals.c.v+sep-reducer.c[620580,620593] [2020-12-22 08:56:36,474 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.BOUNDED-14.pals.c.v+sep-reducer.c[625623,625636] [2020-12-22 08:56:36,495 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[630632,630645] [2020-12-22 08:56:36,514 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.BOUNDED-14.pals.c.v+sep-reducer.c[635570,635583] [2020-12-22 08:56:36,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:56:36,634 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:56:37,293 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.BOUNDED-14.pals.c.v+sep-reducer.c[171756,171769] [2020-12-22 08:56:37,506 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.BOUNDED-14.pals.c.v+sep-reducer.c[249795,249808] [2020-12-22 08:56:37,621 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.BOUNDED-14.pals.c.v+sep-reducer.c[289018,289031] [2020-12-22 08:56:37,679 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.BOUNDED-14.pals.c.v+sep-reducer.c[308729,308742] [2020-12-22 08:56:37,710 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.BOUNDED-14.pals.c.v+sep-reducer.c[318607,318620] [2020-12-22 08:56:37,725 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.BOUNDED-14.pals.c.v+sep-reducer.c[323518,323531] [2020-12-22 08:56:37,740 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.BOUNDED-14.pals.c.v+sep-reducer.c[328346,328359] [2020-12-22 08:56:38,056 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.BOUNDED-14.pals.c.v+sep-reducer.c[404781,404794] [2020-12-22 08:56:38,166 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.BOUNDED-14.pals.c.v+sep-reducer.c[443149,443162] [2020-12-22 08:56:38,223 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.BOUNDED-14.pals.c.v+sep-reducer.c[462661,462674] [2020-12-22 08:56:38,255 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.BOUNDED-14.pals.c.v+sep-reducer.c[472585,472598] [2020-12-22 08:56:38,272 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.BOUNDED-14.pals.c.v+sep-reducer.c[477539,477552] [2020-12-22 08:56:38,289 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.BOUNDED-14.pals.c.v+sep-reducer.c[482410,482423] [2020-12-22 08:56:38,404 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.BOUNDED-14.pals.c.v+sep-reducer.c[520916,520929] [2020-12-22 08:56:38,464 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.BOUNDED-14.pals.c.v+sep-reducer.c[540434,540447] [2020-12-22 08:56:38,497 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.BOUNDED-14.pals.c.v+sep-reducer.c[550358,550371] [2020-12-22 08:56:38,515 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.BOUNDED-14.pals.c.v+sep-reducer.c[555312,555325] [2020-12-22 08:56:38,532 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.BOUNDED-14.pals.c.v+sep-reducer.c[560171,560184] [2020-12-22 08:56:38,603 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.BOUNDED-14.pals.c.v+sep-reducer.c[580917,580930] [2020-12-22 08:56:38,640 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.BOUNDED-14.pals.c.v+sep-reducer.c[590784,590797] [2020-12-22 08:56:38,658 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.BOUNDED-14.pals.c.v+sep-reducer.c[595711,595724] [2020-12-22 08:56:38,677 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.BOUNDED-14.pals.c.v+sep-reducer.c[600553,600566] [2020-12-22 08:56:38,698 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.BOUNDED-14.pals.c.v+sep-reducer.c[605975,605988] [2020-12-22 08:56:38,717 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.BOUNDED-14.pals.c.v+sep-reducer.c[610811,610824] [2020-12-22 08:56:38,734 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.BOUNDED-14.pals.c.v+sep-reducer.c[615738,615751] [2020-12-22 08:56:38,750 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.BOUNDED-14.pals.c.v+sep-reducer.c[620580,620593] [2020-12-22 08:56:38,767 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.BOUNDED-14.pals.c.v+sep-reducer.c[625623,625636] [2020-12-22 08:56:38,785 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.BOUNDED-14.pals.c.v+sep-reducer.c[630632,630645] [2020-12-22 08:56:38,803 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.BOUNDED-14.pals.c.v+sep-reducer.c[635570,635583] [2020-12-22 08:56:38,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:56:38,915 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:56:38,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38 WrapperNode [2020-12-22 08:56:38,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:56:38,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:56:38,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:56:38,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:56:38,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (1/1) ... [2020-12-22 08:56:39,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (1/1) ... [2020-12-22 08:56:39,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:56:39,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:56:39,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:56:39,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:56:39,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (1/1) ... [2020-12-22 08:56:39,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (1/1) ... [2020-12-22 08:56:39,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (1/1) ... [2020-12-22 08:56:39,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (1/1) ... [2020-12-22 08:56:39,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (1/1) ... [2020-12-22 08:56:40,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (1/1) ... [2020-12-22 08:56:40,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (1/1) ... [2020-12-22 08:56:40,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:56:40,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:56:40,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:56:40,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:56:40,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (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 08:56:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:56:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:56:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:56:40,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:56:55,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:56:55,482 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:56:55,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:56:55 BoogieIcfgContainer [2020-12-22 08:56:55,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:56:55,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:56:55,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:56:55,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:56:55,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:56:32" (1/3) ... [2020-12-22 08:56:55,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5460c13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:56:55, skipping insertion in model container [2020-12-22 08:56:55,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:38" (2/3) ... [2020-12-22 08:56:55,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5460c13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:56:55, skipping insertion in model container [2020-12-22 08:56:55,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:56:55" (3/3) ... [2020-12-22 08:56:55,507 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c [2020-12-22 08:56:55,515 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:56:55,534 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-12-22 08:56:55,558 INFO L253 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-12-22 08:56:55,628 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:56:55,629 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:56:55,629 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:56:55,629 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:56:55,630 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:56:55,630 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:56:55,630 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:56:55,630 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:56:55,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states. [2020-12-22 08:56:55,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 08:56:55,783 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:55,785 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 08:56:55,785 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 08:56:55,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:55,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1092592849, now seen corresponding path program 1 times [2020-12-22 08:56:55,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:55,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404199571] [2020-12-22 08:56:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:56,829 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 08:56:56,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404199571] [2020-12-22 08:56:56,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:56,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:56:56,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948614262] [2020-12-22 08:56:56,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:56:56,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:56,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:56:56,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:56:56,872 INFO L87 Difference]: Start difference. First operand 5467 states. Second operand 6 states. [2020-12-22 08:57:02,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:02,445 INFO L93 Difference]: Finished difference Result 6843 states and 11650 transitions. [2020-12-22 08:57:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:02,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-12-22 08:57:02,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:02,494 INFO L225 Difference]: With dead ends: 6843 [2020-12-22 08:57:02,495 INFO L226 Difference]: Without dead ends: 4179 [2020-12-22 08:57:02,508 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 08:57:02,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4179 states. [2020-12-22 08:57:02,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4179 to 4021. [2020-12-22 08:57:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4021 states. [2020-12-22 08:57:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 5224 transitions. [2020-12-22 08:57:02,758 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 5224 transitions. Word has length 102 [2020-12-22 08:57:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:02,759 INFO L481 AbstractCegarLoop]: Abstraction has 4021 states and 5224 transitions. [2020-12-22 08:57:02,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:57:02,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 5224 transitions. [2020-12-22 08:57:02,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 08:57:02,771 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:02,772 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 08:57:02,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:57:02,772 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 08:57:02,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:02,774 INFO L82 PathProgramCache]: Analyzing trace with hash 2083341886, now seen corresponding path program 1 times [2020-12-22 08:57:02,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:02,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094638448] [2020-12-22 08:57:02,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:03,108 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 08:57:03,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094638448] [2020-12-22 08:57:03,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:03,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:57:03,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438792889] [2020-12-22 08:57:03,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:57:03,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:03,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:57:03,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:57:03,125 INFO L87 Difference]: Start difference. First operand 4021 states and 5224 transitions. Second operand 6 states. [2020-12-22 08:57:06,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:06,519 INFO L93 Difference]: Finished difference Result 6076 states and 7969 transitions. [2020-12-22 08:57:06,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:06,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-12-22 08:57:06,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:06,544 INFO L225 Difference]: With dead ends: 6076 [2020-12-22 08:57:06,544 INFO L226 Difference]: Without dead ends: 4317 [2020-12-22 08:57:06,550 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 08:57:06,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2020-12-22 08:57:06,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 4159. [2020-12-22 08:57:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4159 states. [2020-12-22 08:57:06,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4159 states to 4159 states and 5568 transitions. [2020-12-22 08:57:06,734 INFO L78 Accepts]: Start accepts. Automaton has 4159 states and 5568 transitions. Word has length 102 [2020-12-22 08:57:06,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:06,735 INFO L481 AbstractCegarLoop]: Abstraction has 4159 states and 5568 transitions. [2020-12-22 08:57:06,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:57:06,735 INFO L276 IsEmpty]: Start isEmpty. Operand 4159 states and 5568 transitions. [2020-12-22 08:57:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 08:57:06,744 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:06,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:06,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:57:06,745 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 08:57:06,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:06,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1724364913, now seen corresponding path program 1 times [2020-12-22 08:57:06,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:06,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561505350] [2020-12-22 08:57:06,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:06,963 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 08:57:06,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561505350] [2020-12-22 08:57:06,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:06,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:57:06,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454380591] [2020-12-22 08:57:06,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:57:06,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:06,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:57:06,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:57:06,966 INFO L87 Difference]: Start difference. First operand 4159 states and 5568 transitions. Second operand 5 states. [2020-12-22 08:57:08,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:08,716 INFO L93 Difference]: Finished difference Result 4786 states and 6382 transitions. [2020-12-22 08:57:08,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:08,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-12-22 08:57:08,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:08,732 INFO L225 Difference]: With dead ends: 4786 [2020-12-22 08:57:08,733 INFO L226 Difference]: Without dead ends: 2822 [2020-12-22 08:57:08,738 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 08:57:08,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2020-12-22 08:57:08,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2822. [2020-12-22 08:57:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2822 states. [2020-12-22 08:57:08,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 3833 transitions. [2020-12-22 08:57:08,870 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 3833 transitions. Word has length 102 [2020-12-22 08:57:08,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:08,870 INFO L481 AbstractCegarLoop]: Abstraction has 2822 states and 3833 transitions. [2020-12-22 08:57:08,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:57:08,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 3833 transitions. [2020-12-22 08:57:08,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-22 08:57:08,876 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:08,877 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 08:57:08,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:57:08,877 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 08:57:08,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:08,878 INFO L82 PathProgramCache]: Analyzing trace with hash 522079838, now seen corresponding path program 1 times [2020-12-22 08:57:08,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:08,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557931394] [2020-12-22 08:57:08,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:09,084 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 08:57:09,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557931394] [2020-12-22 08:57:09,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:09,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:57:09,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075167093] [2020-12-22 08:57:09,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:57:09,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:09,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:57:09,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:57:09,089 INFO L87 Difference]: Start difference. First operand 2822 states and 3833 transitions. Second operand 6 states. [2020-12-22 08:57:11,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:11,268 INFO L93 Difference]: Finished difference Result 5729 states and 7889 transitions. [2020-12-22 08:57:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:11,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2020-12-22 08:57:11,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:11,291 INFO L225 Difference]: With dead ends: 5729 [2020-12-22 08:57:11,292 INFO L226 Difference]: Without dead ends: 4100 [2020-12-22 08:57:11,297 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 08:57:11,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2020-12-22 08:57:11,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 3988. [2020-12-22 08:57:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3988 states. [2020-12-22 08:57:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3988 states to 3988 states and 5560 transitions. [2020-12-22 08:57:11,541 INFO L78 Accepts]: Start accepts. Automaton has 3988 states and 5560 transitions. Word has length 104 [2020-12-22 08:57:11,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:11,541 INFO L481 AbstractCegarLoop]: Abstraction has 3988 states and 5560 transitions. [2020-12-22 08:57:11,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:57:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3988 states and 5560 transitions. [2020-12-22 08:57:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-22 08:57:11,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:11,550 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 08:57:11,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:57:11,550 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 08:57:11,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:11,551 INFO L82 PathProgramCache]: Analyzing trace with hash -405760317, now seen corresponding path program 1 times [2020-12-22 08:57:11,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:11,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060449285] [2020-12-22 08:57:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:11,796 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 08:57:11,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060449285] [2020-12-22 08:57:11,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:11,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:57:11,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360904567] [2020-12-22 08:57:11,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:57:11,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:11,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:57:11,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:57:11,799 INFO L87 Difference]: Start difference. First operand 3988 states and 5560 transitions. Second operand 6 states. [2020-12-22 08:57:13,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:13,744 INFO L93 Difference]: Finished difference Result 7095 states and 9769 transitions. [2020-12-22 08:57:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:13,745 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2020-12-22 08:57:13,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:13,773 INFO L225 Difference]: With dead ends: 7095 [2020-12-22 08:57:13,774 INFO L226 Difference]: Without dead ends: 5300 [2020-12-22 08:57:13,780 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 08:57:13,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5300 states. [2020-12-22 08:57:14,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5300 to 5189. [2020-12-22 08:57:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5189 states. [2020-12-22 08:57:14,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 7131 transitions. [2020-12-22 08:57:14,240 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 7131 transitions. Word has length 106 [2020-12-22 08:57:14,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:14,240 INFO L481 AbstractCegarLoop]: Abstraction has 5189 states and 7131 transitions. [2020-12-22 08:57:14,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:57:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 7131 transitions. [2020-12-22 08:57:14,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-22 08:57:14,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:14,249 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 08:57:14,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:57:14,249 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 08:57:14,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:14,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1895550542, now seen corresponding path program 1 times [2020-12-22 08:57:14,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:14,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602247347] [2020-12-22 08:57:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:14,438 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 08:57:14,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602247347] [2020-12-22 08:57:14,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:14,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:57:14,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638800659] [2020-12-22 08:57:14,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:57:14,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:14,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:57:14,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:57:14,440 INFO L87 Difference]: Start difference. First operand 5189 states and 7131 transitions. Second operand 5 states. [2020-12-22 08:57:15,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:15,823 INFO L93 Difference]: Finished difference Result 7688 states and 10685 transitions. [2020-12-22 08:57:15,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:15,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-12-22 08:57:15,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:15,853 INFO L225 Difference]: With dead ends: 7688 [2020-12-22 08:57:15,853 INFO L226 Difference]: Without dead ends: 5015 [2020-12-22 08:57:15,860 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 08:57:15,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5015 states. [2020-12-22 08:57:16,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5015 to 5015. [2020-12-22 08:57:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5015 states. [2020-12-22 08:57:16,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5015 states to 5015 states and 6897 transitions. [2020-12-22 08:57:16,164 INFO L78 Accepts]: Start accepts. Automaton has 5015 states and 6897 transitions. Word has length 108 [2020-12-22 08:57:16,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:16,164 INFO L481 AbstractCegarLoop]: Abstraction has 5015 states and 6897 transitions. [2020-12-22 08:57:16,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:57:16,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5015 states and 6897 transitions. [2020-12-22 08:57:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 08:57:16,172 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:16,173 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 08:57:16,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:57:16,173 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 08:57:16,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:16,174 INFO L82 PathProgramCache]: Analyzing trace with hash -2128812211, now seen corresponding path program 1 times [2020-12-22 08:57:16,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:16,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623432652] [2020-12-22 08:57:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:16,387 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 08:57:16,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623432652] [2020-12-22 08:57:16,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:16,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:57:16,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095972670] [2020-12-22 08:57:16,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:57:16,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:16,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:57:16,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:57:16,393 INFO L87 Difference]: Start difference. First operand 5015 states and 6897 transitions. Second operand 5 states. [2020-12-22 08:57:17,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:17,865 INFO L93 Difference]: Finished difference Result 8066 states and 11191 transitions. [2020-12-22 08:57:17,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:17,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-12-22 08:57:17,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:17,880 INFO L225 Difference]: With dead ends: 8066 [2020-12-22 08:57:17,881 INFO L226 Difference]: Without dead ends: 4952 [2020-12-22 08:57:17,887 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 08:57:17,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4952 states. [2020-12-22 08:57:18,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4952 to 4952. [2020-12-22 08:57:18,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4952 states. [2020-12-22 08:57:18,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4952 states to 4952 states and 6805 transitions. [2020-12-22 08:57:18,141 INFO L78 Accepts]: Start accepts. Automaton has 4952 states and 6805 transitions. Word has length 110 [2020-12-22 08:57:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:18,141 INFO L481 AbstractCegarLoop]: Abstraction has 4952 states and 6805 transitions. [2020-12-22 08:57:18,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:57:18,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4952 states and 6805 transitions. [2020-12-22 08:57:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-22 08:57:18,149 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:18,149 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, 1, 1] [2020-12-22 08:57:18,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:57:18,150 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 08:57:18,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:18,150 INFO L82 PathProgramCache]: Analyzing trace with hash 521947695, now seen corresponding path program 1 times [2020-12-22 08:57:18,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:18,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052502811] [2020-12-22 08:57:18,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:18,442 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 08:57:18,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052502811] [2020-12-22 08:57:18,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:18,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:18,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926074846] [2020-12-22 08:57:18,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:18,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:18,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:18,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:18,445 INFO L87 Difference]: Start difference. First operand 4952 states and 6805 transitions. Second operand 9 states. [2020-12-22 08:57:22,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:22,858 INFO L93 Difference]: Finished difference Result 11727 states and 16541 transitions. [2020-12-22 08:57:22,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:22,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2020-12-22 08:57:22,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:22,882 INFO L225 Difference]: With dead ends: 11727 [2020-12-22 08:57:22,883 INFO L226 Difference]: Without dead ends: 10403 [2020-12-22 08:57:22,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:57:22,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10403 states. [2020-12-22 08:57:23,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10403 to 4952. [2020-12-22 08:57:23,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4952 states. [2020-12-22 08:57:23,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4952 states to 4952 states and 6803 transitions. [2020-12-22 08:57:23,399 INFO L78 Accepts]: Start accepts. Automaton has 4952 states and 6803 transitions. Word has length 112 [2020-12-22 08:57:23,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:23,399 INFO L481 AbstractCegarLoop]: Abstraction has 4952 states and 6803 transitions. [2020-12-22 08:57:23,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:23,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4952 states and 6803 transitions. [2020-12-22 08:57:23,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-22 08:57:23,406 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:23,406 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, 1, 1] [2020-12-22 08:57:23,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:57:23,407 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 08:57:23,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:23,408 INFO L82 PathProgramCache]: Analyzing trace with hash -2141698705, now seen corresponding path program 1 times [2020-12-22 08:57:23,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:23,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706551345] [2020-12-22 08:57:23,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:23,713 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 08:57:23,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706551345] [2020-12-22 08:57:23,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:23,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:23,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491564472] [2020-12-22 08:57:23,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:23,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:23,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:23,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:23,715 INFO L87 Difference]: Start difference. First operand 4952 states and 6803 transitions. Second operand 9 states. [2020-12-22 08:57:27,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:27,803 INFO L93 Difference]: Finished difference Result 9694 states and 13700 transitions. [2020-12-22 08:57:27,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:27,804 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2020-12-22 08:57:27,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:27,823 INFO L225 Difference]: With dead ends: 9694 [2020-12-22 08:57:27,823 INFO L226 Difference]: Without dead ends: 7732 [2020-12-22 08:57:27,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states. [2020-12-22 08:57:28,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 4952. [2020-12-22 08:57:28,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4952 states. [2020-12-22 08:57:28,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4952 states to 4952 states and 6802 transitions. [2020-12-22 08:57:28,302 INFO L78 Accepts]: Start accepts. Automaton has 4952 states and 6802 transitions. Word has length 112 [2020-12-22 08:57:28,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:28,302 INFO L481 AbstractCegarLoop]: Abstraction has 4952 states and 6802 transitions. [2020-12-22 08:57:28,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand 4952 states and 6802 transitions. [2020-12-22 08:57:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-22 08:57:28,310 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:28,311 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, 1, 1] [2020-12-22 08:57:28,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:57:28,311 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 08:57:28,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:28,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1864219921, now seen corresponding path program 1 times [2020-12-22 08:57:28,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:28,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795485121] [2020-12-22 08:57:28,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:28,591 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 08:57:28,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795485121] [2020-12-22 08:57:28,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:28,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:28,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177920193] [2020-12-22 08:57:28,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:28,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:28,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:28,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:28,594 INFO L87 Difference]: Start difference. First operand 4952 states and 6802 transitions. Second operand 9 states. [2020-12-22 08:57:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:33,279 INFO L93 Difference]: Finished difference Result 12548 states and 17758 transitions. [2020-12-22 08:57:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:33,280 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2020-12-22 08:57:33,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:33,301 INFO L225 Difference]: With dead ends: 12548 [2020-12-22 08:57:33,301 INFO L226 Difference]: Without dead ends: 10955 [2020-12-22 08:57:33,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:33,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10955 states. [2020-12-22 08:57:33,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10955 to 4952. [2020-12-22 08:57:33,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4952 states. [2020-12-22 08:57:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4952 states to 4952 states and 6801 transitions. [2020-12-22 08:57:33,821 INFO L78 Accepts]: Start accepts. Automaton has 4952 states and 6801 transitions. Word has length 112 [2020-12-22 08:57:33,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:33,822 INFO L481 AbstractCegarLoop]: Abstraction has 4952 states and 6801 transitions. [2020-12-22 08:57:33,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:33,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4952 states and 6801 transitions. [2020-12-22 08:57:33,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-22 08:57:33,826 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:33,827 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, 1, 1] [2020-12-22 08:57:33,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:57:33,827 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 08:57:33,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:33,828 INFO L82 PathProgramCache]: Analyzing trace with hash -326667601, now seen corresponding path program 1 times [2020-12-22 08:57:33,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:33,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332324925] [2020-12-22 08:57:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:34,117 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 08:57:34,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332324925] [2020-12-22 08:57:34,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:34,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:34,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903447585] [2020-12-22 08:57:34,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:34,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:34,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:34,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:34,122 INFO L87 Difference]: Start difference. First operand 4952 states and 6801 transitions. Second operand 9 states. [2020-12-22 08:57:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:38,766 INFO L93 Difference]: Finished difference Result 10409 states and 14560 transitions. [2020-12-22 08:57:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:38,767 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2020-12-22 08:57:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:38,782 INFO L225 Difference]: With dead ends: 10409 [2020-12-22 08:57:38,782 INFO L226 Difference]: Without dead ends: 10403 [2020-12-22 08:57:38,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:57:38,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10403 states. [2020-12-22 08:57:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10403 to 4952. [2020-12-22 08:57:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4952 states. [2020-12-22 08:57:39,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4952 states to 4952 states and 6793 transitions. [2020-12-22 08:57:39,372 INFO L78 Accepts]: Start accepts. Automaton has 4952 states and 6793 transitions. Word has length 112 [2020-12-22 08:57:39,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:39,373 INFO L481 AbstractCegarLoop]: Abstraction has 4952 states and 6793 transitions. [2020-12-22 08:57:39,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:39,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4952 states and 6793 transitions. [2020-12-22 08:57:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-22 08:57:39,378 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:39,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:39,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:57:39,379 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 08:57:39,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:39,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1796458449, now seen corresponding path program 1 times [2020-12-22 08:57:39,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:39,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586217156] [2020-12-22 08:57:39,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:39,675 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 08:57:39,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586217156] [2020-12-22 08:57:39,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:39,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:57:39,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583989885] [2020-12-22 08:57:39,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:57:39,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:39,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:57:39,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:57:39,678 INFO L87 Difference]: Start difference. First operand 4952 states and 6793 transitions. Second operand 8 states. [2020-12-22 08:57:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:42,200 INFO L93 Difference]: Finished difference Result 7147 states and 9931 transitions. [2020-12-22 08:57:42,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:57:42,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 112 [2020-12-22 08:57:42,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:42,206 INFO L225 Difference]: With dead ends: 7147 [2020-12-22 08:57:42,207 INFO L226 Difference]: Without dead ends: 4597 [2020-12-22 08:57:42,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:57:42,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4597 states. [2020-12-22 08:57:42,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4597 to 3826. [2020-12-22 08:57:42,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3826 states. [2020-12-22 08:57:42,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5263 transitions. [2020-12-22 08:57:42,695 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5263 transitions. Word has length 112 [2020-12-22 08:57:42,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:42,696 INFO L481 AbstractCegarLoop]: Abstraction has 3826 states and 5263 transitions. [2020-12-22 08:57:42,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:57:42,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5263 transitions. [2020-12-22 08:57:42,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-22 08:57:42,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:42,701 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, 1, 1, 1] [2020-12-22 08:57:42,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:57:42,702 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 08:57:42,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:42,702 INFO L82 PathProgramCache]: Analyzing trace with hash 551994640, now seen corresponding path program 1 times [2020-12-22 08:57:42,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:42,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825090469] [2020-12-22 08:57:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:42,971 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 08:57:42,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825090469] [2020-12-22 08:57:42,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:42,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:42,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839261379] [2020-12-22 08:57:42,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:42,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:42,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:42,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:42,974 INFO L87 Difference]: Start difference. First operand 3826 states and 5263 transitions. Second operand 9 states. [2020-12-22 08:57:47,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:47,661 INFO L93 Difference]: Finished difference Result 10461 states and 14926 transitions. [2020-12-22 08:57:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:47,662 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-12-22 08:57:47,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:47,674 INFO L225 Difference]: With dead ends: 10461 [2020-12-22 08:57:47,674 INFO L226 Difference]: Without dead ends: 9057 [2020-12-22 08:57:47,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:57:47,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9057 states. [2020-12-22 08:57:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9057 to 3826. [2020-12-22 08:57:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3826 states. [2020-12-22 08:57:48,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5262 transitions. [2020-12-22 08:57:48,161 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5262 transitions. Word has length 113 [2020-12-22 08:57:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:48,161 INFO L481 AbstractCegarLoop]: Abstraction has 3826 states and 5262 transitions. [2020-12-22 08:57:48,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5262 transitions. [2020-12-22 08:57:48,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-22 08:57:48,165 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:48,165 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, 1, 1, 1, 1] [2020-12-22 08:57:48,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:57:48,165 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 08:57:48,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:48,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1400819156, now seen corresponding path program 1 times [2020-12-22 08:57:48,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:48,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127674167] [2020-12-22 08:57:48,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:48,419 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 08:57:48,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127674167] [2020-12-22 08:57:48,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:48,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:48,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442542943] [2020-12-22 08:57:48,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:48,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:48,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:48,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:48,422 INFO L87 Difference]: Start difference. First operand 3826 states and 5262 transitions. Second operand 9 states. [2020-12-22 08:57:53,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:53,414 INFO L93 Difference]: Finished difference Result 10743 states and 15299 transitions. [2020-12-22 08:57:53,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:53,415 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 114 [2020-12-22 08:57:53,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:53,424 INFO L225 Difference]: With dead ends: 10743 [2020-12-22 08:57:53,424 INFO L226 Difference]: Without dead ends: 9186 [2020-12-22 08:57:53,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:53,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9186 states. [2020-12-22 08:57:53,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9186 to 3826. [2020-12-22 08:57:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3826 states. [2020-12-22 08:57:53,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5261 transitions. [2020-12-22 08:57:53,872 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5261 transitions. Word has length 114 [2020-12-22 08:57:53,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:53,873 INFO L481 AbstractCegarLoop]: Abstraction has 3826 states and 5261 transitions. [2020-12-22 08:57:53,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:53,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5261 transitions. [2020-12-22 08:57:53,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-22 08:57:53,876 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:53,876 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, 1, 1, 1, 1] [2020-12-22 08:57:53,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:57:53,877 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 08:57:53,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:53,877 INFO L82 PathProgramCache]: Analyzing trace with hash 265165076, now seen corresponding path program 1 times [2020-12-22 08:57:53,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:53,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098177066] [2020-12-22 08:57:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:54,197 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 08:57:54,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098177066] [2020-12-22 08:57:54,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:54,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:54,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097175359] [2020-12-22 08:57:54,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:54,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:54,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:54,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:54,199 INFO L87 Difference]: Start difference. First operand 3826 states and 5261 transitions. Second operand 9 states. [2020-12-22 08:57:57,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:57,911 INFO L93 Difference]: Finished difference Result 7844 states and 11128 transitions. [2020-12-22 08:57:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:57:57,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 114 [2020-12-22 08:57:57,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:57,917 INFO L225 Difference]: With dead ends: 7844 [2020-12-22 08:57:57,918 INFO L226 Difference]: Without dead ends: 5826 [2020-12-22 08:57:57,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:57:57,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5826 states. [2020-12-22 08:57:58,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5826 to 3826. [2020-12-22 08:57:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3826 states. [2020-12-22 08:57:58,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5260 transitions. [2020-12-22 08:57:58,378 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5260 transitions. Word has length 114 [2020-12-22 08:57:58,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:58,378 INFO L481 AbstractCegarLoop]: Abstraction has 3826 states and 5260 transitions. [2020-12-22 08:57:58,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5260 transitions. [2020-12-22 08:57:58,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-22 08:57:58,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:58,382 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, 1, 1, 1, 1] [2020-12-22 08:57:58,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:57:58,382 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 08:57:58,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:58,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1618240852, now seen corresponding path program 1 times [2020-12-22 08:57:58,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:58,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81709035] [2020-12-22 08:57:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:58,737 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 08:57:58,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81709035] [2020-12-22 08:57:58,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:58,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:57:58,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480245897] [2020-12-22 08:57:58,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:57:58,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:58,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:57:58,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:57:58,739 INFO L87 Difference]: Start difference. First operand 3826 states and 5260 transitions. Second operand 11 states. [2020-12-22 08:58:11,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:11,147 INFO L93 Difference]: Finished difference Result 29000 states and 42195 transitions. [2020-12-22 08:58:11,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:58:11,148 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 114 [2020-12-22 08:58:11,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:11,175 INFO L225 Difference]: With dead ends: 29000 [2020-12-22 08:58:11,175 INFO L226 Difference]: Without dead ends: 27352 [2020-12-22 08:58:11,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:58:11,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27352 states. [2020-12-22 08:58:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27352 to 3831. [2020-12-22 08:58:11,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:58:11,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5265 transitions. [2020-12-22 08:58:11,830 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5265 transitions. Word has length 114 [2020-12-22 08:58:11,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:11,830 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5265 transitions. [2020-12-22 08:58:11,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:58:11,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5265 transitions. [2020-12-22 08:58:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-22 08:58:11,834 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:11,834 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, 1, 1, 1, 1] [2020-12-22 08:58:11,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:58:11,835 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 08:58:11,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:11,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1189391956, now seen corresponding path program 1 times [2020-12-22 08:58:11,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:11,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13690714] [2020-12-22 08:58:11,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:12,112 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 08:58:12,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13690714] [2020-12-22 08:58:12,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:12,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:12,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096103534] [2020-12-22 08:58:12,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:12,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:12,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:12,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:12,114 INFO L87 Difference]: Start difference. First operand 3831 states and 5265 transitions. Second operand 9 states. [2020-12-22 08:58:17,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:17,565 INFO L93 Difference]: Finished difference Result 10485 states and 14950 transitions. [2020-12-22 08:58:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:17,566 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 114 [2020-12-22 08:58:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:17,574 INFO L225 Difference]: With dead ends: 10485 [2020-12-22 08:58:17,574 INFO L226 Difference]: Without dead ends: 9062 [2020-12-22 08:58:17,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:58:17,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9062 states. [2020-12-22 08:58:18,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9062 to 3831. [2020-12-22 08:58:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:58:18,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5264 transitions. [2020-12-22 08:58:18,146 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5264 transitions. Word has length 114 [2020-12-22 08:58:18,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:18,147 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5264 transitions. [2020-12-22 08:58:18,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:18,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5264 transitions. [2020-12-22 08:58:18,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-22 08:58:18,151 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:18,151 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, 1, 1, 1, 1] [2020-12-22 08:58:18,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:58:18,151 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 08:58:18,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:18,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1486418668, now seen corresponding path program 1 times [2020-12-22 08:58:18,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:18,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512089039] [2020-12-22 08:58:18,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:18,401 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 08:58:18,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512089039] [2020-12-22 08:58:18,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:18,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:18,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488980679] [2020-12-22 08:58:18,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:18,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:18,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:18,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:18,403 INFO L87 Difference]: Start difference. First operand 3831 states and 5264 transitions. Second operand 9 states. [2020-12-22 08:58:23,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:23,644 INFO L93 Difference]: Finished difference Result 8868 states and 12485 transitions. [2020-12-22 08:58:23,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:23,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 114 [2020-12-22 08:58:23,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:23,652 INFO L225 Difference]: With dead ends: 8868 [2020-12-22 08:58:23,652 INFO L226 Difference]: Without dead ends: 8862 [2020-12-22 08:58:23,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:58:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8862 states. [2020-12-22 08:58:24,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8862 to 3831. [2020-12-22 08:58:24,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:58:24,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5260 transitions. [2020-12-22 08:58:24,214 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5260 transitions. Word has length 114 [2020-12-22 08:58:24,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:24,214 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5260 transitions. [2020-12-22 08:58:24,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:24,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5260 transitions. [2020-12-22 08:58:24,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-22 08:58:24,218 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:24,218 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, 1, 1, 1, 1] [2020-12-22 08:58:24,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:58:24,219 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 08:58:24,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:24,219 INFO L82 PathProgramCache]: Analyzing trace with hash -404323814, now seen corresponding path program 1 times [2020-12-22 08:58:24,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:24,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59104172] [2020-12-22 08:58:24,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:24,465 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 08:58:24,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59104172] [2020-12-22 08:58:24,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:24,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:24,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317721092] [2020-12-22 08:58:24,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:24,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:24,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:24,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:24,467 INFO L87 Difference]: Start difference. First operand 3831 states and 5260 transitions. Second operand 9 states. [2020-12-22 08:58:30,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:30,652 INFO L93 Difference]: Finished difference Result 10561 states and 15255 transitions. [2020-12-22 08:58:30,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:58:30,652 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 114 [2020-12-22 08:58:30,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:30,661 INFO L225 Difference]: With dead ends: 10561 [2020-12-22 08:58:30,662 INFO L226 Difference]: Without dead ends: 9223 [2020-12-22 08:58:30,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:58:30,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9223 states. [2020-12-22 08:58:31,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9223 to 3831. [2020-12-22 08:58:31,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:58:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5259 transitions. [2020-12-22 08:58:31,262 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5259 transitions. Word has length 114 [2020-12-22 08:58:31,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:31,263 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5259 transitions. [2020-12-22 08:58:31,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5259 transitions. [2020-12-22 08:58:31,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 08:58:31,266 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:31,266 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, 1, 1, 1, 1, 1] [2020-12-22 08:58:31,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:58:31,266 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 08:58:31,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:31,267 INFO L82 PathProgramCache]: Analyzing trace with hash 25653547, now seen corresponding path program 1 times [2020-12-22 08:58:31,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:31,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332429777] [2020-12-22 08:58:31,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:31,490 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 08:58:31,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332429777] [2020-12-22 08:58:31,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:31,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:31,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316495088] [2020-12-22 08:58:31,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:31,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:31,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:31,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:31,492 INFO L87 Difference]: Start difference. First operand 3831 states and 5259 transitions. Second operand 9 states. [2020-12-22 08:58:37,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:37,109 INFO L93 Difference]: Finished difference Result 10471 states and 14920 transitions. [2020-12-22 08:58:37,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:37,119 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 115 [2020-12-22 08:58:37,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:37,129 INFO L225 Difference]: With dead ends: 10471 [2020-12-22 08:58:37,130 INFO L226 Difference]: Without dead ends: 9062 [2020-12-22 08:58:37,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:58:37,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9062 states. [2020-12-22 08:58:37,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9062 to 3831. [2020-12-22 08:58:37,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:58:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5258 transitions. [2020-12-22 08:58:37,745 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5258 transitions. Word has length 115 [2020-12-22 08:58:37,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:37,745 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5258 transitions. [2020-12-22 08:58:37,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5258 transitions. [2020-12-22 08:58:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 08:58:37,749 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:37,749 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, 1, 1, 1, 1, 1] [2020-12-22 08:58:37,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:58:37,749 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 08:58:37,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:37,750 INFO L82 PathProgramCache]: Analyzing trace with hash 519576363, now seen corresponding path program 1 times [2020-12-22 08:58:37,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:37,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652757858] [2020-12-22 08:58:37,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:38,011 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 08:58:38,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652757858] [2020-12-22 08:58:38,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:38,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:38,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086858493] [2020-12-22 08:58:38,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:38,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:38,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:38,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:38,015 INFO L87 Difference]: Start difference. First operand 3831 states and 5258 transitions. Second operand 9 states. [2020-12-22 08:58:44,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:44,392 INFO L93 Difference]: Finished difference Result 10567 states and 15259 transitions. [2020-12-22 08:58:44,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:58:44,392 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 115 [2020-12-22 08:58:44,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:44,403 INFO L225 Difference]: With dead ends: 10567 [2020-12-22 08:58:44,403 INFO L226 Difference]: Without dead ends: 9223 [2020-12-22 08:58:44,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:58:44,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9223 states. [2020-12-22 08:58:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9223 to 3831. [2020-12-22 08:58:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:58:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5257 transitions. [2020-12-22 08:58:45,093 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5257 transitions. Word has length 115 [2020-12-22 08:58:45,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:45,094 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5257 transitions. [2020-12-22 08:58:45,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5257 transitions. [2020-12-22 08:58:45,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 08:58:45,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:45,097 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, 1, 1, 1, 1, 1] [2020-12-22 08:58:45,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:58:45,098 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 08:58:45,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:45,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1088967413, now seen corresponding path program 1 times [2020-12-22 08:58:45,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:45,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023505847] [2020-12-22 08:58:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:45,329 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 08:58:45,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023505847] [2020-12-22 08:58:45,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:45,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:45,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611158743] [2020-12-22 08:58:45,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:45,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:45,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:45,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:45,331 INFO L87 Difference]: Start difference. First operand 3831 states and 5257 transitions. Second operand 9 states. [2020-12-22 08:58:51,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:51,231 INFO L93 Difference]: Finished difference Result 10182 states and 14444 transitions. [2020-12-22 08:58:51,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:51,234 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 115 [2020-12-22 08:58:51,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:51,245 INFO L225 Difference]: With dead ends: 10182 [2020-12-22 08:58:51,245 INFO L226 Difference]: Without dead ends: 8862 [2020-12-22 08:58:51,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:58:51,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8862 states. [2020-12-22 08:58:51,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8862 to 3831. [2020-12-22 08:58:51,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:58:51,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5255 transitions. [2020-12-22 08:58:51,933 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5255 transitions. Word has length 115 [2020-12-22 08:58:51,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:51,933 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5255 transitions. [2020-12-22 08:58:51,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:51,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5255 transitions. [2020-12-22 08:58:51,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 08:58:51,937 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:51,938 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, 1, 1, 1, 1, 1] [2020-12-22 08:58:51,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:58:51,938 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 08:58:51,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:51,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1614159349, now seen corresponding path program 1 times [2020-12-22 08:58:51,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:51,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970989755] [2020-12-22 08:58:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:52,196 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 08:58:52,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970989755] [2020-12-22 08:58:52,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:52,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:52,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264798023] [2020-12-22 08:58:52,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:52,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:52,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:52,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:52,198 INFO L87 Difference]: Start difference. First operand 3831 states and 5255 transitions. Second operand 9 states. [2020-12-22 08:58:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:58,737 INFO L93 Difference]: Finished difference Result 10567 states and 15256 transitions. [2020-12-22 08:58:58,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:58:58,737 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 115 [2020-12-22 08:58:58,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:58,746 INFO L225 Difference]: With dead ends: 10567 [2020-12-22 08:58:58,747 INFO L226 Difference]: Without dead ends: 9223 [2020-12-22 08:58:58,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:58:58,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9223 states. [2020-12-22 08:58:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9223 to 3831. [2020-12-22 08:58:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:58:59,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5254 transitions. [2020-12-22 08:58:59,421 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5254 transitions. Word has length 115 [2020-12-22 08:58:59,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:59,421 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5254 transitions. [2020-12-22 08:58:59,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:59,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5254 transitions. [2020-12-22 08:58:59,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 08:58:59,425 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:59,425 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, 1, 1, 1, 1, 1] [2020-12-22 08:58:59,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:58:59,425 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 08:58:59,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:59,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1405947179, now seen corresponding path program 1 times [2020-12-22 08:58:59,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:59,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842488902] [2020-12-22 08:58:59,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:59,736 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 08:58:59,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842488902] [2020-12-22 08:58:59,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:59,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:58:59,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479856053] [2020-12-22 08:58:59,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:58:59,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:59,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:58:59,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:58:59,743 INFO L87 Difference]: Start difference. First operand 3831 states and 5254 transitions. Second operand 11 states. [2020-12-22 08:59:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:15,807 INFO L93 Difference]: Finished difference Result 25886 states and 37584 transitions. [2020-12-22 08:59:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:59:15,808 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 115 [2020-12-22 08:59:15,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:15,831 INFO L225 Difference]: With dead ends: 25886 [2020-12-22 08:59:15,831 INFO L226 Difference]: Without dead ends: 24477 [2020-12-22 08:59:15,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:59:15,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24477 states. [2020-12-22 08:59:16,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24477 to 3836. [2020-12-22 08:59:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3836 states. [2020-12-22 08:59:16,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 5259 transitions. [2020-12-22 08:59:16,817 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 5259 transitions. Word has length 115 [2020-12-22 08:59:16,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:16,817 INFO L481 AbstractCegarLoop]: Abstraction has 3836 states and 5259 transitions. [2020-12-22 08:59:16,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:59:16,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 5259 transitions. [2020-12-22 08:59:16,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 08:59:16,820 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:16,820 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, 1, 1, 1, 1, 1] [2020-12-22 08:59:16,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:59:16,821 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 08:59:16,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:16,821 INFO L82 PathProgramCache]: Analyzing trace with hash -31670965, now seen corresponding path program 1 times [2020-12-22 08:59:16,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:16,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518253071] [2020-12-22 08:59:16,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:17,239 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 08:59:17,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518253071] [2020-12-22 08:59:17,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:17,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:59:17,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906404573] [2020-12-22 08:59:17,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:59:17,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:17,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:59:17,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:59:17,242 INFO L87 Difference]: Start difference. First operand 3836 states and 5259 transitions. Second operand 12 states. [2020-12-22 08:59:29,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:29,550 INFO L93 Difference]: Finished difference Result 12862 states and 18485 transitions. [2020-12-22 08:59:29,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:59:29,551 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-12-22 08:59:29,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:29,560 INFO L225 Difference]: With dead ends: 12862 [2020-12-22 08:59:29,560 INFO L226 Difference]: Without dead ends: 11518 [2020-12-22 08:59:29,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:59:29,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11518 states. [2020-12-22 08:59:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11518 to 3836. [2020-12-22 08:59:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3836 states. [2020-12-22 08:59:30,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 5258 transitions. [2020-12-22 08:59:30,449 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 5258 transitions. Word has length 115 [2020-12-22 08:59:30,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:30,449 INFO L481 AbstractCegarLoop]: Abstraction has 3836 states and 5258 transitions. [2020-12-22 08:59:30,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:59:30,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 5258 transitions. [2020-12-22 08:59:30,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 08:59:30,452 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:30,452 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, 1, 1, 1, 1, 1] [2020-12-22 08:59:30,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:59:30,452 INFO L429 AbstractCegarLoop]: === Iteration 26 === [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 08:59:30,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:30,452 INFO L82 PathProgramCache]: Analyzing trace with hash 664895691, now seen corresponding path program 1 times [2020-12-22 08:59:30,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:30,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178151605] [2020-12-22 08:59:30,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:30,700 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 08:59:30,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178151605] [2020-12-22 08:59:30,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:30,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:30,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109483800] [2020-12-22 08:59:30,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:30,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:30,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:30,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:30,702 INFO L87 Difference]: Start difference. First operand 3836 states and 5258 transitions. Second operand 9 states. [2020-12-22 08:59:36,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:36,670 INFO L93 Difference]: Finished difference Result 7938 states and 11309 transitions. [2020-12-22 08:59:36,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:59:36,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 115 [2020-12-22 08:59:36,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:36,677 INFO L225 Difference]: With dead ends: 7938 [2020-12-22 08:59:36,677 INFO L226 Difference]: Without dead ends: 6616 [2020-12-22 08:59:36,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:59:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6616 states. [2020-12-22 08:59:37,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6616 to 3836. [2020-12-22 08:59:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3836 states. [2020-12-22 08:59:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 5257 transitions. [2020-12-22 08:59:37,585 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 5257 transitions. Word has length 115 [2020-12-22 08:59:37,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:37,585 INFO L481 AbstractCegarLoop]: Abstraction has 3836 states and 5257 transitions. [2020-12-22 08:59:37,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 5257 transitions. [2020-12-22 08:59:37,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 08:59:37,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:37,588 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, 1, 1, 1, 1, 1] [2020-12-22 08:59:37,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:59:37,588 INFO L429 AbstractCegarLoop]: === Iteration 27 === [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 08:59:37,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:37,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1369536693, now seen corresponding path program 1 times [2020-12-22 08:59:37,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:37,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2356606] [2020-12-22 08:59:37,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:37,811 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 08:59:37,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2356606] [2020-12-22 08:59:37,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:37,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:37,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935614255] [2020-12-22 08:59:37,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:37,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:37,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:37,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:37,814 INFO L87 Difference]: Start difference. First operand 3836 states and 5257 transitions. Second operand 9 states. [2020-12-22 08:59:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:45,460 INFO L93 Difference]: Finished difference Result 10839 states and 15403 transitions. [2020-12-22 08:59:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:59:45,461 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 115 [2020-12-22 08:59:45,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:45,468 INFO L225 Difference]: With dead ends: 10839 [2020-12-22 08:59:45,468 INFO L226 Difference]: Without dead ends: 9191 [2020-12-22 08:59:45,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:59:45,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9191 states. [2020-12-22 08:59:46,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9191 to 3831. [2020-12-22 08:59:46,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:59:46,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5251 transitions. [2020-12-22 08:59:46,412 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5251 transitions. Word has length 115 [2020-12-22 08:59:46,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:46,412 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5251 transitions. [2020-12-22 08:59:46,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:46,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5251 transitions. [2020-12-22 08:59:46,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-22 08:59:46,415 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:46,415 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, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:46,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:59:46,415 INFO L429 AbstractCegarLoop]: === Iteration 28 === [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 08:59:46,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:46,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1654555079, now seen corresponding path program 1 times [2020-12-22 08:59:46,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:46,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307521941] [2020-12-22 08:59:46,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:46,628 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 08:59:46,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307521941] [2020-12-22 08:59:46,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:46,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:46,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165742834] [2020-12-22 08:59:46,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:46,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:46,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:46,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:46,630 INFO L87 Difference]: Start difference. First operand 3831 states and 5251 transitions. Second operand 9 states. [2020-12-22 08:59:53,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:53,472 INFO L93 Difference]: Finished difference Result 10186 states and 14441 transitions. [2020-12-22 08:59:53,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:59:53,473 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 116 [2020-12-22 08:59:53,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:53,481 INFO L225 Difference]: With dead ends: 10186 [2020-12-22 08:59:53,482 INFO L226 Difference]: Without dead ends: 8862 [2020-12-22 08:59:53,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:59:53,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8862 states. [2020-12-22 08:59:54,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8862 to 3831. [2020-12-22 08:59:54,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2020-12-22 08:59:54,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5249 transitions. [2020-12-22 08:59:54,493 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5249 transitions. Word has length 116 [2020-12-22 08:59:54,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:54,493 INFO L481 AbstractCegarLoop]: Abstraction has 3831 states and 5249 transitions. [2020-12-22 08:59:54,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:54,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5249 transitions. [2020-12-22 08:59:54,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-22 08:59:54,496 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:54,496 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, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:54,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:59:54,496 INFO L429 AbstractCegarLoop]: === Iteration 29 === [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 08:59:54,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:54,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1818504057, now seen corresponding path program 1 times [2020-12-22 08:59:54,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:54,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930611154] [2020-12-22 08:59:54,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:54,793 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 08:59:54,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930611154] [2020-12-22 08:59:54,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:54,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:59:54,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679228403] [2020-12-22 08:59:54,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:59:54,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:54,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:59:54,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:59:54,795 INFO L87 Difference]: Start difference. First operand 3831 states and 5249 transitions. Second operand 11 states. [2020-12-22 09:00:11,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:11,161 INFO L93 Difference]: Finished difference Result 22763 states and 32978 transitions. [2020-12-22 09:00:11,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 09:00:11,162 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 116 [2020-12-22 09:00:11,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:11,183 INFO L225 Difference]: With dead ends: 22763 [2020-12-22 09:00:11,183 INFO L226 Difference]: Without dead ends: 21084 [2020-12-22 09:00:11,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 09:00:11,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21084 states. [2020-12-22 09:00:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21084 to 3836. [2020-12-22 09:00:12,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3836 states. [2020-12-22 09:00:12,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 5254 transitions. [2020-12-22 09:00:12,276 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 5254 transitions. Word has length 116 [2020-12-22 09:00:12,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:12,277 INFO L481 AbstractCegarLoop]: Abstraction has 3836 states and 5254 transitions. [2020-12-22 09:00:12,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 09:00:12,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 5254 transitions. [2020-12-22 09:00:12,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-22 09:00:12,280 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:12,281 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, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:12,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 09:00:12,281 INFO L429 AbstractCegarLoop]: === Iteration 30 === [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 09:00:12,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:12,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1624407687, now seen corresponding path program 1 times [2020-12-22 09:00:12,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:12,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879222917] [2020-12-22 09:00:12,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:12,522 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 09:00:12,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879222917] [2020-12-22 09:00:12,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:12,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:12,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882668760] [2020-12-22 09:00:12,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:12,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:12,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:12,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:12,525 INFO L87 Difference]: Start difference. First operand 3836 states and 5254 transitions. Second operand 9 states.