/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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:25:42,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:25:42,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:25:42,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:25:42,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:25:42,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:25:42,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:25:42,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:25:42,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:25:42,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:25:42,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:25:42,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:25:42,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:25:42,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:25:42,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:25:42,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:25:42,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:25:42,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:25:42,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:25:42,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:25:42,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:25:42,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:25:42,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:25:42,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:25:42,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:25:42,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:25:42,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:25:42,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:25:42,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:25:42,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:25:42,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:25:42,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:25:42,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:25:42,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:25:42,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:25:42,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:25:42,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:25:42,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:25:42,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:25:42,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:25:42,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:25:42,748 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:25:42,775 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:25:42,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:25:42,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:25:42,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:25:42,777 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:25:42,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:25:42,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:25:42,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:25:42,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:25:42,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:25:42,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:25:42,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:25:42,779 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:25:42,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:25:42,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:25:42,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:25:42,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:25:42,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:25:42,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:25:42,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:25:42,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:25:42,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:25:42,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:25:42,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:25:42,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:25:42,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:25:43,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:25:43,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:25:43,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:25:43,188 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:25:43,189 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:25:43,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2020-12-22 08:25:43,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd026c88/71a3c2e36563447c91c409775eb62260/FLAG50418647b [2020-12-22 08:25:44,533 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:25:44,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2020-12-22 08:25:44,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd026c88/71a3c2e36563447c91c409775eb62260/FLAG50418647b [2020-12-22 08:25:44,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd026c88/71a3c2e36563447c91c409775eb62260 [2020-12-22 08:25:44,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:25:44,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:25:44,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:25:44,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:25:44,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:25:44,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:25:44" (1/1) ... [2020-12-22 08:25:44,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1298d545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:44, skipping insertion in model container [2020-12-22 08:25:44,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:25:44" (1/1) ... [2020-12-22 08:25:44,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:25:45,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:25:45,888 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32203,32216] [2020-12-22 08:25:45,924 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39261,39274] [2020-12-22 08:25:46,110 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66362,66375] [2020-12-22 08:25:46,146 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75425,75438] [2020-12-22 08:25:46,169 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82116,82129] [2020-12-22 08:25:46,205 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94020,94033] [2020-12-22 08:25:46,231 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[102973,102986] [2020-12-22 08:25:46,256 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[110998,111011] [2020-12-22 08:25:46,354 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149510,149523] [2020-12-22 08:25:46,363 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153040,153053] [2020-12-22 08:25:46,385 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162047,162060] [2020-12-22 08:25:46,403 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[168700,168713] [2020-12-22 08:25:46,463 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194394,194407] [2020-12-22 08:25:46,535 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226290,226303] [2020-12-22 08:25:46,633 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256498,256511] [2020-12-22 08:25:46,714 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[286810,286823] [2020-12-22 08:25:46,805 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320142,320155] [2020-12-22 08:25:47,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:25:47,123 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:25:47,261 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32203,32216] [2020-12-22 08:25:47,276 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39261,39274] [2020-12-22 08:25:47,364 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66362,66375] [2020-12-22 08:25:47,384 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75425,75438] [2020-12-22 08:25:47,398 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82116,82129] [2020-12-22 08:25:47,423 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94020,94033] [2020-12-22 08:25:47,443 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[102973,102986] [2020-12-22 08:25:47,460 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[110998,111011] [2020-12-22 08:25:47,533 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149510,149523] [2020-12-22 08:25:47,542 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153040,153053] [2020-12-22 08:25:47,563 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162047,162060] [2020-12-22 08:25:47,578 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[168700,168713] [2020-12-22 08:25:47,637 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194394,194407] [2020-12-22 08:25:47,712 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226290,226303] [2020-12-22 08:25:47,779 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256498,256511] [2020-12-22 08:25:47,904 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[286810,286823] [2020-12-22 08:25:47,978 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320142,320155] [2020-12-22 08:25:48,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:25:48,253 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:25:48,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48 WrapperNode [2020-12-22 08:25:48,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:25:48,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:25:48,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:25:48,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:25:48,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (1/1) ... [2020-12-22 08:25:48,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (1/1) ... [2020-12-22 08:25:48,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:25:48,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:25:48,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:25:48,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:25:48,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (1/1) ... [2020-12-22 08:25:48,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (1/1) ... [2020-12-22 08:25:48,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (1/1) ... [2020-12-22 08:25:48,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (1/1) ... [2020-12-22 08:25:49,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (1/1) ... [2020-12-22 08:25:49,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (1/1) ... [2020-12-22 08:25:49,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (1/1) ... [2020-12-22 08:25:49,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:25:49,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:25:49,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:25:49,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:25:49,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (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 08:25:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:25:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:25:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:25:49,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:25:59,363 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:25:59,364 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:25:59,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:59 BoogieIcfgContainer [2020-12-22 08:25:59,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:25:59,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:25:59,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:25:59,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:25:59,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:25:44" (1/3) ... [2020-12-22 08:25:59,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c593731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:25:59, skipping insertion in model container [2020-12-22 08:25:59,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:48" (2/3) ... [2020-12-22 08:25:59,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c593731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:25:59, skipping insertion in model container [2020-12-22 08:25:59,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:59" (3/3) ... [2020-12-22 08:25:59,379 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2020-12-22 08:25:59,386 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:25:59,394 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-12-22 08:25:59,413 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-12-22 08:25:59,454 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:25:59,454 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:25:59,455 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:25:59,455 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:25:59,455 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:25:59,455 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:25:59,455 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:25:59,455 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:25:59,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states. [2020-12-22 08:25:59,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 08:25:59,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:25:59,563 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] [2020-12-22 08:25:59,564 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:25:59,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:25:59,570 INFO L82 PathProgramCache]: Analyzing trace with hash -100733711, now seen corresponding path program 1 times [2020-12-22 08:25:59,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:25:59,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292774222] [2020-12-22 08:25:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:00,269 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 08:26:00,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292774222] [2020-12-22 08:26:00,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:00,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:26:00,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86684079] [2020-12-22 08:26:00,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:26:00,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:00,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:26:00,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:26:00,296 INFO L87 Difference]: Start difference. First operand 3732 states. Second operand 5 states. [2020-12-22 08:26:06,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:06,201 INFO L93 Difference]: Finished difference Result 7023 states and 12201 transitions. [2020-12-22 08:26:06,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:26:06,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-12-22 08:26:06,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:06,272 INFO L225 Difference]: With dead ends: 7023 [2020-12-22 08:26:06,273 INFO L226 Difference]: Without dead ends: 4502 [2020-12-22 08:26:06,288 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 08:26:06,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2020-12-22 08:26:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4477. [2020-12-22 08:26:06,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4477 states. [2020-12-22 08:26:06,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5806 transitions. [2020-12-22 08:26:06,603 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5806 transitions. Word has length 65 [2020-12-22 08:26:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:06,604 INFO L481 AbstractCegarLoop]: Abstraction has 4477 states and 5806 transitions. [2020-12-22 08:26:06,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:26:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5806 transitions. [2020-12-22 08:26:06,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:26:06,618 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:06,618 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] [2020-12-22 08:26:06,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:26:06,619 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:06,621 INFO L82 PathProgramCache]: Analyzing trace with hash 100373679, now seen corresponding path program 1 times [2020-12-22 08:26:06,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:06,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555461045] [2020-12-22 08:26:06,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:06,958 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 08:26:06,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555461045] [2020-12-22 08:26:06,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:06,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:26:06,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047535944] [2020-12-22 08:26:06,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:26:06,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:06,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:26:06,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:26:06,966 INFO L87 Difference]: Start difference. First operand 4477 states and 5806 transitions. Second operand 6 states. [2020-12-22 08:26:10,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:10,720 INFO L93 Difference]: Finished difference Result 9159 states and 11918 transitions. [2020-12-22 08:26:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:26:10,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-22 08:26:10,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:10,755 INFO L225 Difference]: With dead ends: 9159 [2020-12-22 08:26:10,755 INFO L226 Difference]: Without dead ends: 6392 [2020-12-22 08:26:10,763 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 08:26:10,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6392 states. [2020-12-22 08:26:11,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6392 to 6347. [2020-12-22 08:26:11,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6347 states. [2020-12-22 08:26:11,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6347 states to 6347 states and 8296 transitions. [2020-12-22 08:26:11,038 INFO L78 Accepts]: Start accepts. Automaton has 6347 states and 8296 transitions. Word has length 66 [2020-12-22 08:26:11,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:11,039 INFO L481 AbstractCegarLoop]: Abstraction has 6347 states and 8296 transitions. [2020-12-22 08:26:11,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:26:11,039 INFO L276 IsEmpty]: Start isEmpty. Operand 6347 states and 8296 transitions. [2020-12-22 08:26:11,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:26:11,049 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:11,049 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] [2020-12-22 08:26:11,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:26:11,050 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:11,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:11,050 INFO L82 PathProgramCache]: Analyzing trace with hash 2043501231, now seen corresponding path program 1 times [2020-12-22 08:26:11,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:11,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980550] [2020-12-22 08:26:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:11,193 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 08:26:11,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980550] [2020-12-22 08:26:11,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:11,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:26:11,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497394928] [2020-12-22 08:26:11,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:26:11,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:11,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:26:11,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:26:11,196 INFO L87 Difference]: Start difference. First operand 6347 states and 8296 transitions. Second operand 6 states. [2020-12-22 08:26:15,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:15,127 INFO L93 Difference]: Finished difference Result 14605 states and 19151 transitions. [2020-12-22 08:26:15,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:26:15,127 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-22 08:26:15,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:15,178 INFO L225 Difference]: With dead ends: 14605 [2020-12-22 08:26:15,179 INFO L226 Difference]: Without dead ends: 9739 [2020-12-22 08:26:15,190 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 08:26:15,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9739 states. [2020-12-22 08:26:15,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9739 to 9707. [2020-12-22 08:26:15,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9707 states. [2020-12-22 08:26:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9707 states to 9707 states and 12737 transitions. [2020-12-22 08:26:15,788 INFO L78 Accepts]: Start accepts. Automaton has 9707 states and 12737 transitions. Word has length 66 [2020-12-22 08:26:15,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:15,789 INFO L481 AbstractCegarLoop]: Abstraction has 9707 states and 12737 transitions. [2020-12-22 08:26:15,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:26:15,789 INFO L276 IsEmpty]: Start isEmpty. Operand 9707 states and 12737 transitions. [2020-12-22 08:26:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:26:15,798 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:15,799 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] [2020-12-22 08:26:15,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:26:15,799 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:15,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:15,800 INFO L82 PathProgramCache]: Analyzing trace with hash 280890183, now seen corresponding path program 1 times [2020-12-22 08:26:15,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:15,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493366661] [2020-12-22 08:26:15,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:15,953 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 08:26:15,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493366661] [2020-12-22 08:26:15,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:15,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:26:15,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981432968] [2020-12-22 08:26:15,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:26:15,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:15,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:26:15,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:26:15,956 INFO L87 Difference]: Start difference. First operand 9707 states and 12737 transitions. Second operand 6 states. [2020-12-22 08:26:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:19,100 INFO L93 Difference]: Finished difference Result 22486 states and 30017 transitions. [2020-12-22 08:26:19,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:26:19,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-22 08:26:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:19,256 INFO L225 Difference]: With dead ends: 22486 [2020-12-22 08:26:19,257 INFO L226 Difference]: Without dead ends: 16106 [2020-12-22 08:26:19,266 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 08:26:19,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16106 states. [2020-12-22 08:26:19,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16106 to 16056. [2020-12-22 08:26:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16056 states. [2020-12-22 08:26:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16056 states to 16056 states and 21461 transitions. [2020-12-22 08:26:19,896 INFO L78 Accepts]: Start accepts. Automaton has 16056 states and 21461 transitions. Word has length 67 [2020-12-22 08:26:19,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:19,896 INFO L481 AbstractCegarLoop]: Abstraction has 16056 states and 21461 transitions. [2020-12-22 08:26:19,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:26:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand 16056 states and 21461 transitions. [2020-12-22 08:26:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:26:19,907 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:19,907 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] [2020-12-22 08:26:19,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:26:19,908 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:19,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:19,909 INFO L82 PathProgramCache]: Analyzing trace with hash 533009189, now seen corresponding path program 1 times [2020-12-22 08:26:19,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:19,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085664886] [2020-12-22 08:26:19,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:20,207 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 08:26:20,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085664886] [2020-12-22 08:26:20,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:20,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:26:20,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100016263] [2020-12-22 08:26:20,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:26:20,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:20,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:26:20,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:26:20,211 INFO L87 Difference]: Start difference. First operand 16056 states and 21461 transitions. Second operand 8 states. [2020-12-22 08:26:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:26,565 INFO L93 Difference]: Finished difference Result 35356 states and 50760 transitions. [2020-12-22 08:26:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:26:26,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-12-22 08:26:26,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:26,638 INFO L225 Difference]: With dead ends: 35356 [2020-12-22 08:26:26,638 INFO L226 Difference]: Without dead ends: 30880 [2020-12-22 08:26:26,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:26:26,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30880 states. [2020-12-22 08:26:27,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30880 to 15783. [2020-12-22 08:26:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15783 states. [2020-12-22 08:26:27,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15783 states to 15783 states and 21104 transitions. [2020-12-22 08:26:27,587 INFO L78 Accepts]: Start accepts. Automaton has 15783 states and 21104 transitions. Word has length 68 [2020-12-22 08:26:27,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:27,588 INFO L481 AbstractCegarLoop]: Abstraction has 15783 states and 21104 transitions. [2020-12-22 08:26:27,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:26:27,588 INFO L276 IsEmpty]: Start isEmpty. Operand 15783 states and 21104 transitions. [2020-12-22 08:26:27,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:26:27,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:27,598 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] [2020-12-22 08:26:27,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:26:27,599 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:27,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:27,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1802238869, now seen corresponding path program 1 times [2020-12-22 08:26:27,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:27,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410827411] [2020-12-22 08:26:27,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:27,874 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 08:26:27,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410827411] [2020-12-22 08:26:27,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:27,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:26:27,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439546996] [2020-12-22 08:26:27,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:26:27,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:27,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:26:27,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:26:27,889 INFO L87 Difference]: Start difference. First operand 15783 states and 21104 transitions. Second operand 9 states. [2020-12-22 08:26:37,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:37,296 INFO L93 Difference]: Finished difference Result 47828 states and 67562 transitions. [2020-12-22 08:26:37,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:26:37,297 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-12-22 08:26:37,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:37,403 INFO L225 Difference]: With dead ends: 47828 [2020-12-22 08:26:37,403 INFO L226 Difference]: Without dead ends: 43575 [2020-12-22 08:26:37,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:26:37,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43575 states. [2020-12-22 08:26:38,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43575 to 15694. [2020-12-22 08:26:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15694 states. [2020-12-22 08:26:38,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15694 states to 15694 states and 20983 transitions. [2020-12-22 08:26:38,553 INFO L78 Accepts]: Start accepts. Automaton has 15694 states and 20983 transitions. Word has length 68 [2020-12-22 08:26:38,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:38,554 INFO L481 AbstractCegarLoop]: Abstraction has 15694 states and 20983 transitions. [2020-12-22 08:26:38,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:26:38,554 INFO L276 IsEmpty]: Start isEmpty. Operand 15694 states and 20983 transitions. [2020-12-22 08:26:38,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:26:38,564 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:38,565 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] [2020-12-22 08:26:38,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:26:38,565 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:38,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:38,566 INFO L82 PathProgramCache]: Analyzing trace with hash 2141707383, now seen corresponding path program 1 times [2020-12-22 08:26:38,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:38,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137397017] [2020-12-22 08:26:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:39,130 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 08:26:39,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137397017] [2020-12-22 08:26:39,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:39,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:26:39,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741921363] [2020-12-22 08:26:39,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:26:39,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:39,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:26:39,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:26:39,133 INFO L87 Difference]: Start difference. First operand 15694 states and 20983 transitions. Second operand 12 states. [2020-12-22 08:26:39,674 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-12-22 08:26:39,951 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-12-22 08:26:45,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:45,228 INFO L93 Difference]: Finished difference Result 36741 states and 52819 transitions. [2020-12-22 08:26:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:26:45,229 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-12-22 08:26:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:45,288 INFO L225 Difference]: With dead ends: 36741 [2020-12-22 08:26:45,288 INFO L226 Difference]: Without dead ends: 36737 [2020-12-22 08:26:45,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:26:45,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36737 states. [2020-12-22 08:26:46,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36737 to 15690. [2020-12-22 08:26:46,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15690 states. [2020-12-22 08:26:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15690 states to 15690 states and 20979 transitions. [2020-12-22 08:26:46,481 INFO L78 Accepts]: Start accepts. Automaton has 15690 states and 20979 transitions. Word has length 69 [2020-12-22 08:26:46,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:46,482 INFO L481 AbstractCegarLoop]: Abstraction has 15690 states and 20979 transitions. [2020-12-22 08:26:46,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:26:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 15690 states and 20979 transitions. [2020-12-22 08:26:46,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:26:46,491 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:46,491 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] [2020-12-22 08:26:46,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:26:46,492 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:46,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:46,492 INFO L82 PathProgramCache]: Analyzing trace with hash -50233035, now seen corresponding path program 1 times [2020-12-22 08:26:46,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:46,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29013167] [2020-12-22 08:26:46,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:46,713 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 08:26:46,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29013167] [2020-12-22 08:26:46,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:46,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:26:46,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527668356] [2020-12-22 08:26:46,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:26:46,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:46,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:26:46,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:26:46,715 INFO L87 Difference]: Start difference. First operand 15690 states and 20979 transitions. Second operand 9 states. [2020-12-22 08:26:53,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:53,810 INFO L93 Difference]: Finished difference Result 21298 states and 29422 transitions. [2020-12-22 08:26:53,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:26:53,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-12-22 08:26:53,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:53,841 INFO L225 Difference]: With dead ends: 21298 [2020-12-22 08:26:53,841 INFO L226 Difference]: Without dead ends: 21292 [2020-12-22 08:26:53,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:26:53,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21292 states. [2020-12-22 08:26:54,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21292 to 15690. [2020-12-22 08:26:54,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15690 states. [2020-12-22 08:26:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15690 states to 15690 states and 20978 transitions. [2020-12-22 08:26:54,991 INFO L78 Accepts]: Start accepts. Automaton has 15690 states and 20978 transitions. Word has length 69 [2020-12-22 08:26:54,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:54,991 INFO L481 AbstractCegarLoop]: Abstraction has 15690 states and 20978 transitions. [2020-12-22 08:26:54,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:26:54,992 INFO L276 IsEmpty]: Start isEmpty. Operand 15690 states and 20978 transitions. [2020-12-22 08:26:55,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:26:55,001 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:55,001 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] [2020-12-22 08:26:55,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:26:55,002 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:55,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:55,002 INFO L82 PathProgramCache]: Analyzing trace with hash 487125926, now seen corresponding path program 1 times [2020-12-22 08:26:55,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:55,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013302921] [2020-12-22 08:26:55,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:55,220 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 08:26:55,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013302921] [2020-12-22 08:26:55,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:55,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:26:55,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415350931] [2020-12-22 08:26:55,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:26:55,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:55,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:26:55,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:26:55,223 INFO L87 Difference]: Start difference. First operand 15690 states and 20978 transitions. Second operand 9 states. [2020-12-22 08:27:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:27:03,717 INFO L93 Difference]: Finished difference Result 21592 states and 29752 transitions. [2020-12-22 08:27:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:27:03,718 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-12-22 08:27:03,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:27:03,748 INFO L225 Difference]: With dead ends: 21592 [2020-12-22 08:27:03,748 INFO L226 Difference]: Without dead ends: 21583 [2020-12-22 08:27:03,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:27:03,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21583 states. [2020-12-22 08:27:04,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21583 to 15690. [2020-12-22 08:27:04,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15690 states. [2020-12-22 08:27:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15690 states to 15690 states and 20977 transitions. [2020-12-22 08:27:04,983 INFO L78 Accepts]: Start accepts. Automaton has 15690 states and 20977 transitions. Word has length 69 [2020-12-22 08:27:04,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:27:04,983 INFO L481 AbstractCegarLoop]: Abstraction has 15690 states and 20977 transitions. [2020-12-22 08:27:04,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:27:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 15690 states and 20977 transitions. [2020-12-22 08:27:04,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:27:04,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:27:04,993 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] [2020-12-22 08:27:04,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:27:04,993 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:27:04,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:27:04,994 INFO L82 PathProgramCache]: Analyzing trace with hash -465119641, now seen corresponding path program 1 times [2020-12-22 08:27:04,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:27:04,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366773783] [2020-12-22 08:27:04,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:27:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:27:06,138 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 08:27:06,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366773783] [2020-12-22 08:27:06,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:27:06,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-22 08:27:06,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269462754] [2020-12-22 08:27:06,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-22 08:27:06,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:27:06,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-22 08:27:06,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-12-22 08:27:06,141 INFO L87 Difference]: Start difference. First operand 15690 states and 20977 transitions. Second operand 17 states. [2020-12-22 08:27:06,360 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-22 08:27:06,809 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2020-12-22 08:27:07,018 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-22 08:27:07,244 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-22 08:27:07,639 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-12-22 08:27:08,078 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-12-22 08:27:08,794 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-12-22 08:27:09,862 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-22 08:27:10,214 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-12-22 08:27:10,712 WARN L197 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2020-12-22 08:27:11,129 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-12-22 08:27:11,944 WARN L197 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-12-22 08:27:13,786 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-12-22 08:27:14,776 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-12-22 08:27:15,549 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-12-22 08:27:16,127 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-12-22 08:27:20,782 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-12-22 08:27:21,961 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-12-22 08:27:23,387 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2020-12-22 08:27:23,685 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-12-22 08:27:24,922 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-12-22 08:27:25,691 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-12-22 08:27:27,274 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-22 08:27:28,900 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2020-12-22 08:27:29,260 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-12-22 08:27:30,278 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-22 08:27:30,550 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-12-22 08:27:30,833 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-22 08:27:31,370 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-22 08:27:31,878 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-22 08:27:32,412 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-22 08:27:32,676 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-12-22 08:27:33,723 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-12-22 08:27:34,232 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-22 08:27:35,021 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-22 08:27:35,503 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-12-22 08:27:35,882 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-22 08:27:36,349 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-22 08:27:36,756 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-12-22 08:27:36,957 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-12-22 08:27:37,233 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-12-22 08:27:37,776 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-22 08:27:38,109 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-22 08:27:38,486 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-12-22 08:27:39,074 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-22 08:27:39,611 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-12-22 08:27:39,900 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-12-22 08:27:40,456 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:27:42,082 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-12-22 08:27:43,763 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-12-22 08:27:45,323 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-12-22 08:27:46,040 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-22 08:27:46,618 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:27:47,443 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-22 08:27:47,989 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-12-22 08:27:48,360 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-22 08:27:48,958 WARN L197 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-22 08:27:49,781 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-12-22 08:27:50,373 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-22 08:27:50,880 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-22 08:27:51,399 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-22 08:27:51,850 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-12-22 08:27:52,171 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-22 08:27:52,723 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:27:53,101 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-22 08:27:53,806 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-22 08:27:54,409 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-12-22 08:27:55,238 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-12-22 08:27:56,973 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-12-22 08:27:59,483 WARN L197 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-12-22 08:28:00,531 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-12-22 08:28:00,926 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-12-22 08:28:01,507 WARN L197 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-22 08:28:02,242 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-22 08:28:02,646 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-22 08:28:03,240 WARN L197 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-12-22 08:28:06,007 WARN L197 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-12-22 08:28:06,685 WARN L197 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-12-22 08:28:07,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:28:07,285 INFO L93 Difference]: Finished difference Result 122789 states and 183578 transitions. [2020-12-22 08:28:07,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2020-12-22 08:28:07,286 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 69 [2020-12-22 08:28:07,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:28:07,469 INFO L225 Difference]: With dead ends: 122789 [2020-12-22 08:28:07,469 INFO L226 Difference]: Without dead ends: 122785 [2020-12-22 08:28:07,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3598 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=2005, Invalid=8095, Unknown=0, NotChecked=0, Total=10100 [2020-12-22 08:28:07,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122785 states. [2020-12-22 08:28:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122785 to 15686. [2020-12-22 08:28:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15686 states. [2020-12-22 08:28:09,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15686 states to 15686 states and 20973 transitions. [2020-12-22 08:28:09,996 INFO L78 Accepts]: Start accepts. Automaton has 15686 states and 20973 transitions. Word has length 69 [2020-12-22 08:28:09,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:28:09,997 INFO L481 AbstractCegarLoop]: Abstraction has 15686 states and 20973 transitions. [2020-12-22 08:28:09,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-22 08:28:09,997 INFO L276 IsEmpty]: Start isEmpty. Operand 15686 states and 20973 transitions. [2020-12-22 08:28:10,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 08:28:10,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:28:10,006 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] [2020-12-22 08:28:10,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:28:10,007 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:28:10,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:28:10,007 INFO L82 PathProgramCache]: Analyzing trace with hash 215127807, now seen corresponding path program 1 times [2020-12-22 08:28:10,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:28:10,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540254730] [2020-12-22 08:28:10,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:28:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:28:10,534 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 08:28:10,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540254730] [2020-12-22 08:28:10,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:28:10,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:28:10,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907144776] [2020-12-22 08:28:10,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:28:10,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:28:10,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:28:10,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:28:10,537 INFO L87 Difference]: Start difference. First operand 15686 states and 20973 transitions. Second operand 11 states. [2020-12-22 08:28:10,929 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2020-12-22 08:28:11,535 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2020-12-22 08:28:14,695 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-12-22 08:28:17,095 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-12-22 08:28:20,787 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-12-22 08:28:21,683 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-12-22 08:28:27,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:28:27,263 INFO L93 Difference]: Finished difference Result 55015 states and 78754 transitions. [2020-12-22 08:28:27,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:28:27,264 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-12-22 08:28:27,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:28:27,318 INFO L225 Difference]: With dead ends: 55015 [2020-12-22 08:28:27,318 INFO L226 Difference]: Without dead ends: 50514 [2020-12-22 08:28:27,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:28:27,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50514 states. [2020-12-22 08:28:29,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50514 to 15345. [2020-12-22 08:28:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15345 states. [2020-12-22 08:28:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15345 states to 15345 states and 20497 transitions. [2020-12-22 08:28:29,784 INFO L78 Accepts]: Start accepts. Automaton has 15345 states and 20497 transitions. Word has length 70 [2020-12-22 08:28:29,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:28:29,784 INFO L481 AbstractCegarLoop]: Abstraction has 15345 states and 20497 transitions. [2020-12-22 08:28:29,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:28:29,784 INFO L276 IsEmpty]: Start isEmpty. Operand 15345 states and 20497 transitions. [2020-12-22 08:28:29,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 08:28:29,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:28:29,792 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] [2020-12-22 08:28:29,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:28:29,792 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:28:29,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:28:29,792 INFO L82 PathProgramCache]: Analyzing trace with hash 502084112, now seen corresponding path program 1 times [2020-12-22 08:28:29,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:28:29,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019849378] [2020-12-22 08:28:29,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:28:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:28:30,239 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 08:28:30,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019849378] [2020-12-22 08:28:30,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:28:30,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:28:30,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428857657] [2020-12-22 08:28:30,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:28:30,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:28:30,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:28:30,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:28:30,242 INFO L87 Difference]: Start difference. First operand 15345 states and 20497 transitions. Second operand 12 states. [2020-12-22 08:28:44,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:28:44,204 INFO L93 Difference]: Finished difference Result 39551 states and 55861 transitions. [2020-12-22 08:28:44,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:28:44,205 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2020-12-22 08:28:44,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:28:44,240 INFO L225 Difference]: With dead ends: 39551 [2020-12-22 08:28:44,240 INFO L226 Difference]: Without dead ends: 39539 [2020-12-22 08:28:44,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:28:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39539 states. [2020-12-22 08:28:46,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39539 to 15338. [2020-12-22 08:28:46,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15338 states. [2020-12-22 08:28:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15338 states to 15338 states and 20489 transitions. [2020-12-22 08:28:46,545 INFO L78 Accepts]: Start accepts. Automaton has 15338 states and 20489 transitions. Word has length 70 [2020-12-22 08:28:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:28:46,546 INFO L481 AbstractCegarLoop]: Abstraction has 15338 states and 20489 transitions. [2020-12-22 08:28:46,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:28:46,546 INFO L276 IsEmpty]: Start isEmpty. Operand 15338 states and 20489 transitions. [2020-12-22 08:28:46,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 08:28:46,554 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:28:46,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:28:46,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:28:46,554 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:28:46,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:28:46,555 INFO L82 PathProgramCache]: Analyzing trace with hash -683220265, now seen corresponding path program 1 times [2020-12-22 08:28:46,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:28:46,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352544085] [2020-12-22 08:28:46,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:28:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:28:46,637 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 08:28:46,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352544085] [2020-12-22 08:28:46,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:28:46,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:28:46,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596934013] [2020-12-22 08:28:46,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:28:46,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:28:46,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:28:46,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:28:46,639 INFO L87 Difference]: Start difference. First operand 15338 states and 20489 transitions. Second operand 3 states. [2020-12-22 08:28:49,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:28:49,963 INFO L93 Difference]: Finished difference Result 23697 states and 32834 transitions. [2020-12-22 08:28:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:28:49,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-22 08:28:49,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:28:49,977 INFO L225 Difference]: With dead ends: 23697 [2020-12-22 08:28:49,977 INFO L226 Difference]: Without dead ends: 14531 [2020-12-22 08:28:49,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:28:49,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14531 states. [2020-12-22 08:28:52,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14531 to 14512. [2020-12-22 08:28:52,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14512 states. [2020-12-22 08:28:52,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14512 states to 14512 states and 20056 transitions. [2020-12-22 08:28:52,603 INFO L78 Accepts]: Start accepts. Automaton has 14512 states and 20056 transitions. Word has length 70 [2020-12-22 08:28:52,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:28:52,603 INFO L481 AbstractCegarLoop]: Abstraction has 14512 states and 20056 transitions. [2020-12-22 08:28:52,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:28:52,603 INFO L276 IsEmpty]: Start isEmpty. Operand 14512 states and 20056 transitions. [2020-12-22 08:28:52,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 08:28:52,609 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:28:52,609 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] [2020-12-22 08:28:52,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:28:52,610 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:28:52,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:28:52,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1404122129, now seen corresponding path program 1 times [2020-12-22 08:28:52,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:28:52,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789369089] [2020-12-22 08:28:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:28:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:28:52,811 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 08:28:52,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789369089] [2020-12-22 08:28:52,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:28:52,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:28:52,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123510864] [2020-12-22 08:28:52,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:28:52,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:28:52,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:28:52,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:28:52,813 INFO L87 Difference]: Start difference. First operand 14512 states and 20056 transitions. Second operand 9 states. [2020-12-22 08:29:09,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:29:09,516 INFO L93 Difference]: Finished difference Result 46741 states and 68718 transitions. [2020-12-22 08:29:09,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:29:09,517 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-12-22 08:29:09,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:29:09,561 INFO L225 Difference]: With dead ends: 46741 [2020-12-22 08:29:09,561 INFO L226 Difference]: Without dead ends: 39860 [2020-12-22 08:29:09,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:29:09,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39860 states. [2020-12-22 08:29:12,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39860 to 14512. [2020-12-22 08:29:12,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14512 states. [2020-12-22 08:29:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14512 states to 14512 states and 20055 transitions. [2020-12-22 08:29:12,446 INFO L78 Accepts]: Start accepts. Automaton has 14512 states and 20055 transitions. Word has length 71 [2020-12-22 08:29:12,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:29:12,447 INFO L481 AbstractCegarLoop]: Abstraction has 14512 states and 20055 transitions. [2020-12-22 08:29:12,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:29:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 14512 states and 20055 transitions. [2020-12-22 08:29:12,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 08:29:12,453 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:29:12,454 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] [2020-12-22 08:29:12,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:29:12,454 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:29:12,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:29:12,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1017361466, now seen corresponding path program 1 times [2020-12-22 08:29:12,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:29:12,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688961947] [2020-12-22 08:29:12,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:29:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:29:12,633 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 08:29:12,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688961947] [2020-12-22 08:29:12,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:29:12,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:29:12,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867106385] [2020-12-22 08:29:12,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:29:12,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:29:12,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:29:12,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:29:12,635 INFO L87 Difference]: Start difference. First operand 14512 states and 20055 transitions. Second operand 9 states. [2020-12-22 08:29:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:29:35,885 INFO L93 Difference]: Finished difference Result 62073 states and 89984 transitions. [2020-12-22 08:29:35,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:29:35,886 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-12-22 08:29:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:29:35,943 INFO L225 Difference]: With dead ends: 62073 [2020-12-22 08:29:35,943 INFO L226 Difference]: Without dead ends: 55105 [2020-12-22 08:29:35,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:29:35,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55105 states.