/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.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:27:20,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:27:20,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:27:20,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:27:20,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:27:20,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:27:20,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:27:20,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:27:20,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:27:20,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:27:20,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:27:20,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:27:20,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:27:20,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:27:20,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:27:20,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:27:20,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:27:20,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:27:20,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:27:20,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:27:20,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:27:20,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:27:20,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:27:20,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:27:20,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:27:20,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:27:20,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:27:20,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:27:20,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:27:20,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:27:20,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:27:20,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:27:20,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:27:20,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:27:20,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:27:20,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:27:20,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:27:20,171 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:27:20,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:27:20,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:27:20,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:27:20,173 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:27:20,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:27:20,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:27:20,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:27:20,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:27:20,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:27:20,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:27:20,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:27:20,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:27:20,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:27:20,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:27:20,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:27:20,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:27:20,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:27:20,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:27:20,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:27:20,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:27:20,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:27:20,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:27:20,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:27:20,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:27:20,177 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:27:20,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:27:20,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:27:20,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:27:20,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:27:20,563 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:27:20,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:27:20,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c04e093/8aa8659538764186870451d2c5585a38/FLAGab7233655 [2020-12-22 08:27:21,739 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:27:21,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:27:21,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c04e093/8aa8659538764186870451d2c5585a38/FLAGab7233655 [2020-12-22 08:27:22,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c04e093/8aa8659538764186870451d2c5585a38 [2020-12-22 08:27:22,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:27:22,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:27:22,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:27:22,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:27:22,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:27:22,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:27:22" (1/1) ... [2020-12-22 08:27:22,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1d3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:22, skipping insertion in model container [2020-12-22 08:27:22,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:27:22" (1/1) ... [2020-12-22 08:27:22,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:27:22,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:27:23,064 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.UNBOUNDED.pals.c.v+sep-reducer.c[26395,26408] [2020-12-22 08:27:23,116 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.UNBOUNDED.pals.c.v+sep-reducer.c[32725,32738] [2020-12-22 08:27:23,234 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57257,57270] [2020-12-22 08:27:23,261 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.UNBOUNDED.pals.c.v+sep-reducer.c[65292,65305] [2020-12-22 08:27:23,280 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.UNBOUNDED.pals.c.v+sep-reducer.c[71095,71108] [2020-12-22 08:27:23,311 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.UNBOUNDED.pals.c.v+sep-reducer.c[81778,81791] [2020-12-22 08:27:23,333 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.UNBOUNDED.pals.c.v+sep-reducer.c[89703,89716] [2020-12-22 08:27:23,352 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.UNBOUNDED.pals.c.v+sep-reducer.c[96891,96904] [2020-12-22 08:27:23,439 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[131418,131431] [2020-12-22 08:27:23,448 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[134526,134539] [2020-12-22 08:27:23,469 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.UNBOUNDED.pals.c.v+sep-reducer.c[142519,142532] [2020-12-22 08:27:23,485 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.UNBOUNDED.pals.c.v+sep-reducer.c[148303,148316] [2020-12-22 08:27:23,547 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.UNBOUNDED.pals.c.v+sep-reducer.c[170929,170942] [2020-12-22 08:27:23,621 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[198665,198678] [2020-12-22 08:27:23,686 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.UNBOUNDED.pals.c.v+sep-reducer.c[225098,225111] [2020-12-22 08:27:23,788 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.UNBOUNDED.pals.c.v+sep-reducer.c[252259,252272] [2020-12-22 08:27:23,853 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.UNBOUNDED.pals.c.v+sep-reducer.c[283266,283279] [2020-12-22 08:27:24,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:27:24,129 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:27:24,246 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.UNBOUNDED.pals.c.v+sep-reducer.c[26395,26408] [2020-12-22 08:27:24,261 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.UNBOUNDED.pals.c.v+sep-reducer.c[32725,32738] [2020-12-22 08:27:24,314 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.UNBOUNDED.pals.c.v+sep-reducer.c[57257,57270] [2020-12-22 08:27:24,331 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.UNBOUNDED.pals.c.v+sep-reducer.c[65292,65305] [2020-12-22 08:27:24,344 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.UNBOUNDED.pals.c.v+sep-reducer.c[71095,71108] [2020-12-22 08:27:24,368 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.UNBOUNDED.pals.c.v+sep-reducer.c[81778,81791] [2020-12-22 08:27:24,385 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.UNBOUNDED.pals.c.v+sep-reducer.c[89703,89716] [2020-12-22 08:27:24,400 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.UNBOUNDED.pals.c.v+sep-reducer.c[96891,96904] [2020-12-22 08:27:24,465 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.UNBOUNDED.pals.c.v+sep-reducer.c[131418,131431] [2020-12-22 08:27:24,474 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[134526,134539] [2020-12-22 08:27:24,491 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[142519,142532] [2020-12-22 08:27:24,504 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[148303,148316] [2020-12-22 08:27:24,554 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.UNBOUNDED.pals.c.v+sep-reducer.c[170929,170942] [2020-12-22 08:27:24,619 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.UNBOUNDED.pals.c.v+sep-reducer.c[198665,198678] [2020-12-22 08:27:24,693 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.UNBOUNDED.pals.c.v+sep-reducer.c[225098,225111] [2020-12-22 08:27:24,758 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.UNBOUNDED.pals.c.v+sep-reducer.c[252259,252272] [2020-12-22 08:27:24,919 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.UNBOUNDED.pals.c.v+sep-reducer.c[283266,283279] [2020-12-22 08:27:25,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:27:25,219 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:27:25,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25 WrapperNode [2020-12-22 08:27:25,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:27:25,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:27:25,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:27:25,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:27:25,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (1/1) ... [2020-12-22 08:27:25,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (1/1) ... [2020-12-22 08:27:25,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:27:25,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:27:25,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:27:25,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:27:25,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (1/1) ... [2020-12-22 08:27:25,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (1/1) ... [2020-12-22 08:27:25,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (1/1) ... [2020-12-22 08:27:25,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (1/1) ... [2020-12-22 08:27:25,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (1/1) ... [2020-12-22 08:27:25,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (1/1) ... [2020-12-22 08:27:26,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (1/1) ... [2020-12-22 08:27:26,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:27:26,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:27:26,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:27:26,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:27:26,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (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 08:27:26,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:27:26,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:27:26,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:27:26,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:27:35,289 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:27:35,290 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:27:35,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:27:35 BoogieIcfgContainer [2020-12-22 08:27:35,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:27:35,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:27:35,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:27:35,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:27:35,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:27:22" (1/3) ... [2020-12-22 08:27:35,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb45386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:27:35, skipping insertion in model container [2020-12-22 08:27:35,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:27:25" (2/3) ... [2020-12-22 08:27:35,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb45386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:27:35, skipping insertion in model container [2020-12-22 08:27:35,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:27:35" (3/3) ... [2020-12-22 08:27:35,305 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:27:35,311 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:27:35,319 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-12-22 08:27:35,338 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-12-22 08:27:35,381 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:27:35,381 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:27:35,381 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:27:35,381 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:27:35,381 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:27:35,381 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:27:35,382 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:27:35,382 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:27:35,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states. [2020-12-22 08:27:35,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 08:27:35,496 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:27:35,497 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] [2020-12-22 08:27:35,497 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 08:27:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:27:35,504 INFO L82 PathProgramCache]: Analyzing trace with hash -912153875, now seen corresponding path program 1 times [2020-12-22 08:27:35,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:27:35,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302013526] [2020-12-22 08:27:35,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:27:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:27:36,041 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 08:27:36,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302013526] [2020-12-22 08:27:36,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:27:36,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:27:36,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376569245] [2020-12-22 08:27:36,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:27:36,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:27:36,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:27:36,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:27:36,072 INFO L87 Difference]: Start difference. First operand 3532 states. Second operand 5 states. [2020-12-22 08:27:41,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:27:41,987 INFO L93 Difference]: Finished difference Result 6625 states and 11820 transitions. [2020-12-22 08:27:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:27:41,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-12-22 08:27:41,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:27:42,043 INFO L225 Difference]: With dead ends: 6625 [2020-12-22 08:27:42,044 INFO L226 Difference]: Without dead ends: 4205 [2020-12-22 08:27:42,059 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 08:27:42,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states. [2020-12-22 08:27:42,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4205 to 4181. [2020-12-22 08:27:42,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4181 states. [2020-12-22 08:27:42,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4181 states to 4181 states and 5582 transitions. [2020-12-22 08:27:42,308 INFO L78 Accepts]: Start accepts. Automaton has 4181 states and 5582 transitions. Word has length 64 [2020-12-22 08:27:42,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:27:42,309 INFO L481 AbstractCegarLoop]: Abstraction has 4181 states and 5582 transitions. [2020-12-22 08:27:42,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:27:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4181 states and 5582 transitions. [2020-12-22 08:27:42,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 08:27:42,325 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:27:42,325 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 08:27:42,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:27:42,326 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 08:27:42,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:27:42,327 INFO L82 PathProgramCache]: Analyzing trace with hash -919069742, now seen corresponding path program 1 times [2020-12-22 08:27:42,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:27:42,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341847475] [2020-12-22 08:27:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:27:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:27:42,610 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 08:27:42,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341847475] [2020-12-22 08:27:42,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:27:42,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:27:42,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956542698] [2020-12-22 08:27:42,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:27:42,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:27:42,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:27:42,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:27:42,614 INFO L87 Difference]: Start difference. First operand 4181 states and 5582 transitions. Second operand 6 states. [2020-12-22 08:27:46,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:27:46,262 INFO L93 Difference]: Finished difference Result 8505 states and 11397 transitions. [2020-12-22 08:27:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:27:46,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-12-22 08:27:46,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:27:46,294 INFO L225 Difference]: With dead ends: 8505 [2020-12-22 08:27:46,294 INFO L226 Difference]: Without dead ends: 5486 [2020-12-22 08:27:46,302 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 08:27:46,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5486 states. [2020-12-22 08:27:46,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5486 to 5454. [2020-12-22 08:27:46,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5454 states. [2020-12-22 08:27:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 7362 transitions. [2020-12-22 08:27:46,604 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 7362 transitions. Word has length 65 [2020-12-22 08:27:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:27:46,604 INFO L481 AbstractCegarLoop]: Abstraction has 5454 states and 7362 transitions. [2020-12-22 08:27:46,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:27:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 7362 transitions. [2020-12-22 08:27:46,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 08:27:46,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:27:46,614 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 08:27:46,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:27:46,615 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 08:27:46,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:27:46,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1793005613, now seen corresponding path program 1 times [2020-12-22 08:27:46,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:27:46,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515703358] [2020-12-22 08:27:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:27:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:27:46,822 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 08:27:46,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515703358] [2020-12-22 08:27:46,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:27:46,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:27:46,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109289571] [2020-12-22 08:27:46,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:27:46,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:27:46,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:27:46,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:27:46,825 INFO L87 Difference]: Start difference. First operand 5454 states and 7362 transitions. Second operand 6 states. [2020-12-22 08:27:50,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:27:50,204 INFO L93 Difference]: Finished difference Result 12627 states and 17128 transitions. [2020-12-22 08:27:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:27:50,205 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-12-22 08:27:50,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:27:50,262 INFO L225 Difference]: With dead ends: 12627 [2020-12-22 08:27:50,262 INFO L226 Difference]: Without dead ends: 9008 [2020-12-22 08:27:50,273 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 08:27:50,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9008 states. [2020-12-22 08:27:50,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9008 to 8967. [2020-12-22 08:27:50,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8967 states. [2020-12-22 08:27:50,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8967 states to 8967 states and 12204 transitions. [2020-12-22 08:27:50,745 INFO L78 Accepts]: Start accepts. Automaton has 8967 states and 12204 transitions. Word has length 65 [2020-12-22 08:27:50,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:27:50,748 INFO L481 AbstractCegarLoop]: Abstraction has 8967 states and 12204 transitions. [2020-12-22 08:27:50,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:27:50,748 INFO L276 IsEmpty]: Start isEmpty. Operand 8967 states and 12204 transitions. [2020-12-22 08:27:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:27:50,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:27:50,762 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 08:27:50,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:27:50,762 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 08:27:50,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:27:50,763 INFO L82 PathProgramCache]: Analyzing trace with hash -958325289, now seen corresponding path program 1 times [2020-12-22 08:27:50,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:27:50,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838097941] [2020-12-22 08:27:50,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:27:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:27:50,950 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 08:27:50,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838097941] [2020-12-22 08:27:50,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:27:50,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:27:50,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008807684] [2020-12-22 08:27:50,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:27:50,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:27:50,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:27:50,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:27:50,955 INFO L87 Difference]: Start difference. First operand 8967 states and 12204 transitions. Second operand 6 states. [2020-12-22 08:27:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:27:54,054 INFO L93 Difference]: Finished difference Result 20784 states and 28778 transitions. [2020-12-22 08:27:54,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:27:54,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-22 08:27:54,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:27:54,115 INFO L225 Difference]: With dead ends: 20784 [2020-12-22 08:27:54,115 INFO L226 Difference]: Without dead ends: 14724 [2020-12-22 08:27:54,128 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 08:27:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14724 states. [2020-12-22 08:27:54,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14724 to 14679. [2020-12-22 08:27:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14679 states. [2020-12-22 08:27:54,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14679 states to 14679 states and 20362 transitions. [2020-12-22 08:27:54,700 INFO L78 Accepts]: Start accepts. Automaton has 14679 states and 20362 transitions. Word has length 66 [2020-12-22 08:27:54,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:27:54,701 INFO L481 AbstractCegarLoop]: Abstraction has 14679 states and 20362 transitions. [2020-12-22 08:27:54,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:27:54,702 INFO L276 IsEmpty]: Start isEmpty. Operand 14679 states and 20362 transitions. [2020-12-22 08:27:54,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:27:54,713 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:27:54,714 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 08:27:54,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:27:54,714 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 08:27:54,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:27:54,715 INFO L82 PathProgramCache]: Analyzing trace with hash 215811001, now seen corresponding path program 1 times [2020-12-22 08:27:54,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:27:54,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708546805] [2020-12-22 08:27:54,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:27:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:27:54,940 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 08:27:54,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708546805] [2020-12-22 08:27:54,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:27:54,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:27:54,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578452077] [2020-12-22 08:27:54,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:27:54,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:27:54,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:27:54,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:27:54,943 INFO L87 Difference]: Start difference. First operand 14679 states and 20362 transitions. Second operand 9 states. [2020-12-22 08:28:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:28:03,021 INFO L93 Difference]: Finished difference Result 44987 states and 65455 transitions. [2020-12-22 08:28:03,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:28:03,022 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-12-22 08:28:03,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:28:03,120 INFO L225 Difference]: With dead ends: 44987 [2020-12-22 08:28:03,122 INFO L226 Difference]: Without dead ends: 40903 [2020-12-22 08:28:03,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:28:03,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40903 states. [2020-12-22 08:28:04,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40903 to 14597. [2020-12-22 08:28:04,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14597 states. [2020-12-22 08:28:04,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14597 states to 14597 states and 20245 transitions. [2020-12-22 08:28:04,571 INFO L78 Accepts]: Start accepts. Automaton has 14597 states and 20245 transitions. Word has length 66 [2020-12-22 08:28:04,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:28:04,572 INFO L481 AbstractCegarLoop]: Abstraction has 14597 states and 20245 transitions. [2020-12-22 08:28:04,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:28:04,572 INFO L276 IsEmpty]: Start isEmpty. Operand 14597 states and 20245 transitions. [2020-12-22 08:28:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:28:04,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:28:04,584 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 08:28:04,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:28:04,584 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 08:28:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:28:04,585 INFO L82 PathProgramCache]: Analyzing trace with hash -531315301, now seen corresponding path program 1 times [2020-12-22 08:28:04,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:28:04,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186888676] [2020-12-22 08:28:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:28:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:28:04,834 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 08:28:04,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186888676] [2020-12-22 08:28:04,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:28:04,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:28:04,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464626961] [2020-12-22 08:28:04,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:28:04,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:28:04,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:28:04,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:28:04,837 INFO L87 Difference]: Start difference. First operand 14597 states and 20245 transitions. Second operand 8 states. [2020-12-22 08:28:11,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:28:11,604 INFO L93 Difference]: Finished difference Result 33116 states and 49015 transitions. [2020-12-22 08:28:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:28:11,605 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-12-22 08:28:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:28:11,653 INFO L225 Difference]: With dead ends: 33116 [2020-12-22 08:28:11,654 INFO L226 Difference]: Without dead ends: 28842 [2020-12-22 08:28:11,664 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 08:28:11,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28842 states. [2020-12-22 08:28:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28842 to 14343. [2020-12-22 08:28:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14343 states. [2020-12-22 08:28:12,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14343 states to 14343 states and 19901 transitions. [2020-12-22 08:28:12,446 INFO L78 Accepts]: Start accepts. Automaton has 14343 states and 19901 transitions. Word has length 66 [2020-12-22 08:28:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:28:12,446 INFO L481 AbstractCegarLoop]: Abstraction has 14343 states and 19901 transitions. [2020-12-22 08:28:12,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:28:12,446 INFO L276 IsEmpty]: Start isEmpty. Operand 14343 states and 19901 transitions. [2020-12-22 08:28:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:28:12,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:28:12,457 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 08:28:12,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:28:12,458 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 08:28:12,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:28:12,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1567621872, now seen corresponding path program 1 times [2020-12-22 08:28:12,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:28:12,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852758317] [2020-12-22 08:28:12,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:28:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:28:12,643 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 08:28:12,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852758317] [2020-12-22 08:28:12,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:28:12,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:28:12,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266785832] [2020-12-22 08:28:12,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:28:12,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:28:12,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:28:12,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:28:12,646 INFO L87 Difference]: Start difference. First operand 14343 states and 19901 transitions. Second operand 9 states. [2020-12-22 08:28:20,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:28:20,513 INFO L93 Difference]: Finished difference Result 22742 states and 32547 transitions. [2020-12-22 08:28:20,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:28:20,513 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-12-22 08:28:20,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:28:20,546 INFO L225 Difference]: With dead ends: 22742 [2020-12-22 08:28:20,546 INFO L226 Difference]: Without dead ends: 22734 [2020-12-22 08:28:20,553 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 08:28:20,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22734 states. [2020-12-22 08:28:21,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22734 to 14343. [2020-12-22 08:28:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14343 states. [2020-12-22 08:28:21,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14343 states to 14343 states and 19900 transitions. [2020-12-22 08:28:21,463 INFO L78 Accepts]: Start accepts. Automaton has 14343 states and 19900 transitions. Word has length 67 [2020-12-22 08:28:21,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:28:21,464 INFO L481 AbstractCegarLoop]: Abstraction has 14343 states and 19900 transitions. [2020-12-22 08:28:21,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:28:21,464 INFO L276 IsEmpty]: Start isEmpty. Operand 14343 states and 19900 transitions. [2020-12-22 08:28:21,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:28:21,473 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:28:21,473 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 08:28:21,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:28:21,474 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 08:28:21,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:28:21,474 INFO L82 PathProgramCache]: Analyzing trace with hash 435988824, now seen corresponding path program 1 times [2020-12-22 08:28:21,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:28:21,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224761521] [2020-12-22 08:28:21,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:28:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:28:21,659 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 08:28:21,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224761521] [2020-12-22 08:28:21,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:28:21,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:28:21,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480330190] [2020-12-22 08:28:21,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:28:21,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:28:21,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:28:21,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:28:21,662 INFO L87 Difference]: Start difference. First operand 14343 states and 19900 transitions. Second operand 9 states. [2020-12-22 08:28:28,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:28:28,253 INFO L93 Difference]: Finished difference Result 19726 states and 28190 transitions. [2020-12-22 08:28:28,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:28:28,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-12-22 08:28:28,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:28:28,276 INFO L225 Difference]: With dead ends: 19726 [2020-12-22 08:28:28,277 INFO L226 Difference]: Without dead ends: 19721 [2020-12-22 08:28:28,282 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 08:28:28,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19721 states. [2020-12-22 08:28:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19721 to 14343. [2020-12-22 08:28:28,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14343 states. [2020-12-22 08:28:29,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14343 states to 14343 states and 19899 transitions. [2020-12-22 08:28:29,018 INFO L78 Accepts]: Start accepts. Automaton has 14343 states and 19899 transitions. Word has length 67 [2020-12-22 08:28:29,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:28:29,018 INFO L481 AbstractCegarLoop]: Abstraction has 14343 states and 19899 transitions. [2020-12-22 08:28:29,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:28:29,019 INFO L276 IsEmpty]: Start isEmpty. Operand 14343 states and 19899 transitions. [2020-12-22 08:28:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:28:29,025 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:28:29,026 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 08:28:29,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:28:29,026 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 08:28:29,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:28:29,027 INFO L82 PathProgramCache]: Analyzing trace with hash -2090357239, now seen corresponding path program 1 times [2020-12-22 08:28:29,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:28:29,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896701231] [2020-12-22 08:28:29,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:28:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:28:30,056 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 08:28:30,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896701231] [2020-12-22 08:28:30,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:28:30,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-22 08:28:30,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415640221] [2020-12-22 08:28:30,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-22 08:28:30,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:28:30,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-22 08:28:30,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-12-22 08:28:30,059 INFO L87 Difference]: Start difference. First operand 14343 states and 19899 transitions. Second operand 17 states. [2020-12-22 08:28:30,445 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-12-22 08:28:30,605 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-12-22 08:28:30,803 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-12-22 08:28:31,038 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-12-22 08:28:31,318 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-22 08:28:31,611 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-12-22 08:28:32,013 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-22 08:28:32,528 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-12-22 08:28:33,265 WARN L197 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-12-22 08:28:34,205 WARN L197 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-12-22 08:28:34,492 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-22 08:28:34,918 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-12-22 08:28:35,415 WARN L197 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2020-12-22 08:28:35,867 WARN L197 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-12-22 08:28:37,454 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-12-22 08:28:38,420 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-12-22 08:28:39,245 WARN L197 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-12-22 08:28:39,785 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-12-22 08:28:44,414 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-22 08:28:45,390 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-12-22 08:28:46,899 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-12-22 08:28:47,678 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2020-12-22 08:28:48,350 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-22 08:28:49,269 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-22 08:28:50,137 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-22 08:28:50,894 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-22 08:28:51,552 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-22 08:28:51,866 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-22 08:28:52,260 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-22 08:28:52,896 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-22 08:28:53,485 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:28:53,833 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-12-22 08:28:54,111 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-22 08:28:55,234 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-12-22 08:28:55,648 WARN L197 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-12-22 08:28:56,025 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-22 08:28:56,439 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-22 08:28:56,739 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-12-22 08:28:57,153 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-22 08:28:57,408 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-22 08:28:57,644 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-22 08:28:58,079 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2020-12-22 08:28:58,350 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-22 08:28:58,793 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-22 08:28:59,210 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-22 08:28:59,828 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-12-22 08:29:00,076 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-12-22 08:29:00,484 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-22 08:29:01,087 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-12-22 08:29:02,775 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-12-22 08:29:04,123 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-22 08:29:04,914 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-12-22 08:29:05,587 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-22 08:29:06,106 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-12-22 08:29:06,577 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-22 08:29:07,033 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-22 08:29:07,380 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-22 08:29:07,814 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-12-22 08:29:08,404 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:29:08,829 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-22 08:29:09,040 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:29:09,335 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-22 08:29:09,719 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-12-22 08:29:10,063 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:29:10,851 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-22 08:29:11,323 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-22 08:29:14,120 WARN L197 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-22 08:29:14,519 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-22 08:29:15,010 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-22 08:29:15,409 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:29:16,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:29:16,476 INFO L93 Difference]: Finished difference Result 104403 states and 159811 transitions. [2020-12-22 08:29:16,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-12-22 08:29:16,477 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 67 [2020-12-22 08:29:16,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:29:16,603 INFO L225 Difference]: With dead ends: 104403 [2020-12-22 08:29:16,603 INFO L226 Difference]: Without dead ends: 104399 [2020-12-22 08:29:16,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3018 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=1716, Invalid=6656, Unknown=0, NotChecked=0, Total=8372 [2020-12-22 08:29:16,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104399 states. [2020-12-22 08:29:18,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104399 to 14339. [2020-12-22 08:29:18,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14339 states. [2020-12-22 08:29:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 19895 transitions. [2020-12-22 08:29:18,665 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 19895 transitions. Word has length 67 [2020-12-22 08:29:18,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:29:18,666 INFO L481 AbstractCegarLoop]: Abstraction has 14339 states and 19895 transitions. [2020-12-22 08:29:18,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-22 08:29:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 19895 transitions. [2020-12-22 08:29:18,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:29:18,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:29:18,674 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 08:29:18,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:29:18,675 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 08:29:18,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:29:18,675 INFO L82 PathProgramCache]: Analyzing trace with hash 822338575, now seen corresponding path program 1 times [2020-12-22 08:29:18,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:29:18,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504173693] [2020-12-22 08:29:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:29:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:29:19,281 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 08:29:19,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504173693] [2020-12-22 08:29:19,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:29:19,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:29:19,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858937329] [2020-12-22 08:29:19,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:29:19,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:29:19,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:29:19,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:29:19,284 INFO L87 Difference]: Start difference. First operand 14339 states and 19895 transitions. Second operand 12 states. [2020-12-22 08:29:19,936 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-12-22 08:29:20,217 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-12-22 08:29:21,283 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2020-12-22 08:29:33,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:29:33,501 INFO L93 Difference]: Finished difference Result 54108 states and 81662 transitions. [2020-12-22 08:29:33,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-22 08:29:33,502 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2020-12-22 08:29:33,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:29:33,554 INFO L225 Difference]: With dead ends: 54108 [2020-12-22 08:29:33,554 INFO L226 Difference]: Without dead ends: 54104 [2020-12-22 08:29:33,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:29:33,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54104 states. [2020-12-22 08:29:35,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54104 to 14335. [2020-12-22 08:29:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14335 states. [2020-12-22 08:29:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14335 states to 14335 states and 19891 transitions. [2020-12-22 08:29:35,300 INFO L78 Accepts]: Start accepts. Automaton has 14335 states and 19891 transitions. Word has length 67 [2020-12-22 08:29:35,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:29:35,300 INFO L481 AbstractCegarLoop]: Abstraction has 14335 states and 19891 transitions. [2020-12-22 08:29:35,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:29:35,301 INFO L276 IsEmpty]: Start isEmpty. Operand 14335 states and 19891 transitions. [2020-12-22 08:29:35,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:29:35,307 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:29:35,307 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 08:29:35,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:29:35,308 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 08:29:35,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:29:35,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1877034391, now seen corresponding path program 1 times [2020-12-22 08:29:35,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:29:35,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837900487] [2020-12-22 08:29:35,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:29:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:29:35,702 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 08:29:35,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837900487] [2020-12-22 08:29:35,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:29:35,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:29:35,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226931323] [2020-12-22 08:29:35,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:29:35,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:29:35,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:29:35,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:29:35,704 INFO L87 Difference]: Start difference. First operand 14335 states and 19891 transitions. Second operand 12 states. [2020-12-22 08:29:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:29:47,628 INFO L93 Difference]: Finished difference Result 37267 states and 54309 transitions. [2020-12-22 08:29:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:29:47,629 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-12-22 08:29:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:29:47,661 INFO L225 Difference]: With dead ends: 37267 [2020-12-22 08:29:47,661 INFO L226 Difference]: Without dead ends: 37256 [2020-12-22 08:29:47,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:29:47,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37256 states. [2020-12-22 08:29:49,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37256 to 14329. [2020-12-22 08:29:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14329 states. [2020-12-22 08:29:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14329 states to 14329 states and 19884 transitions. [2020-12-22 08:29:49,532 INFO L78 Accepts]: Start accepts. Automaton has 14329 states and 19884 transitions. Word has length 68 [2020-12-22 08:29:49,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:29:49,532 INFO L481 AbstractCegarLoop]: Abstraction has 14329 states and 19884 transitions. [2020-12-22 08:29:49,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:29:49,533 INFO L276 IsEmpty]: Start isEmpty. Operand 14329 states and 19884 transitions. [2020-12-22 08:29:49,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:29:49,539 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:29:49,539 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 08:29:49,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:29:49,540 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 08:29:49,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:29:49,540 INFO L82 PathProgramCache]: Analyzing trace with hash 702049040, now seen corresponding path program 1 times [2020-12-22 08:29:49,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:29:49,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401584764] [2020-12-22 08:29:49,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:29:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:29:49,743 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 08:29:49,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401584764] [2020-12-22 08:29:49,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:29:49,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:29:49,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938323968] [2020-12-22 08:29:49,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:29:49,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:29:49,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:29:49,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:29:49,745 INFO L87 Difference]: Start difference. First operand 14329 states and 19884 transitions. Second operand 8 states. [2020-12-22 08:30:01,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:01,366 INFO L93 Difference]: Finished difference Result 33546 states and 49555 transitions. [2020-12-22 08:30:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:30:01,367 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-12-22 08:30:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:01,393 INFO L225 Difference]: With dead ends: 33546 [2020-12-22 08:30:01,393 INFO L226 Difference]: Without dead ends: 28823 [2020-12-22 08:30:01,404 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 08:30:01,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28823 states. [2020-12-22 08:30:03,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28823 to 14329. [2020-12-22 08:30:03,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14329 states. [2020-12-22 08:30:03,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14329 states to 14329 states and 19883 transitions. [2020-12-22 08:30:03,119 INFO L78 Accepts]: Start accepts. Automaton has 14329 states and 19883 transitions. Word has length 68 [2020-12-22 08:30:03,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:30:03,120 INFO L481 AbstractCegarLoop]: Abstraction has 14329 states and 19883 transitions. [2020-12-22 08:30:03,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:30:03,120 INFO L276 IsEmpty]: Start isEmpty. Operand 14329 states and 19883 transitions. [2020-12-22 08:30:03,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:30:03,128 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:03,128 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 08:30:03,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:30:03,128 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 08:30:03,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:03,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1625518918, now seen corresponding path program 1 times [2020-12-22 08:30:03,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:03,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562759146] [2020-12-22 08:30:03,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:03,334 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 08:30:03,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562759146] [2020-12-22 08:30:03,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:03,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:30:03,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826324102] [2020-12-22 08:30:03,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:30:03,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:03,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:30:03,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:30:03,337 INFO L87 Difference]: Start difference. First operand 14329 states and 19883 transitions. Second operand 9 states. [2020-12-22 08:30:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:18,138 INFO L93 Difference]: Finished difference Result 36074 states and 53231 transitions. [2020-12-22 08:30:18,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:30:18,139 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-12-22 08:30:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:18,169 INFO L225 Difference]: With dead ends: 36074 [2020-12-22 08:30:18,169 INFO L226 Difference]: Without dead ends: 32053 [2020-12-22 08:30:18,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:30:18,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32053 states. [2020-12-22 08:30:20,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32053 to 14329. [2020-12-22 08:30:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14329 states. [2020-12-22 08:30:20,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14329 states to 14329 states and 19882 transitions. [2020-12-22 08:30:20,026 INFO L78 Accepts]: Start accepts. Automaton has 14329 states and 19882 transitions. Word has length 68 [2020-12-22 08:30:20,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:30:20,027 INFO L481 AbstractCegarLoop]: Abstraction has 14329 states and 19882 transitions. [2020-12-22 08:30:20,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:30:20,027 INFO L276 IsEmpty]: Start isEmpty. Operand 14329 states and 19882 transitions. [2020-12-22 08:30:20,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:30:20,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:20,036 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 08:30:20,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:30:20,037 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 08:30:20,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:20,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1023482213, now seen corresponding path program 1 times [2020-12-22 08:30:20,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:20,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179628566] [2020-12-22 08:30:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:20,200 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 08:30:20,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179628566] [2020-12-22 08:30:20,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:20,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:30:20,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199810010] [2020-12-22 08:30:20,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:30:20,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:20,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:30:20,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:30:20,202 INFO L87 Difference]: Start difference. First operand 14329 states and 19882 transitions. Second operand 9 states. [2020-12-22 08:30:36,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:36,971 INFO L93 Difference]: Finished difference Result 44650 states and 64983 transitions. [2020-12-22 08:30:36,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:30:36,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-12-22 08:30:36,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:37,010 INFO L225 Difference]: With dead ends: 44650 [2020-12-22 08:30:37,010 INFO L226 Difference]: Without dead ends: 40554 [2020-12-22 08:30:37,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:30:37,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40554 states. [2020-12-22 08:30:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40554 to 14329. [2020-12-22 08:30:39,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14329 states. [2020-12-22 08:30:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14329 states to 14329 states and 19881 transitions. [2020-12-22 08:30:39,084 INFO L78 Accepts]: Start accepts. Automaton has 14329 states and 19881 transitions. Word has length 68 [2020-12-22 08:30:39,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:30:39,084 INFO L481 AbstractCegarLoop]: Abstraction has 14329 states and 19881 transitions. [2020-12-22 08:30:39,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:30:39,084 INFO L276 IsEmpty]: Start isEmpty. Operand 14329 states and 19881 transitions. [2020-12-22 08:30:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:30:39,093 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:39,093 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 08:30:39,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:30:39,093 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 08:30:39,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:39,094 INFO L82 PathProgramCache]: Analyzing trace with hash -53728106, now seen corresponding path program 1 times [2020-12-22 08:30:39,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:39,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234337767] [2020-12-22 08:30:39,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:39,455 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 08:30:39,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234337767] [2020-12-22 08:30:39,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:39,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:30:39,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006006247] [2020-12-22 08:30:39,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:30:39,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:39,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:30:39,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:30:39,458 INFO L87 Difference]: Start difference. First operand 14329 states and 19881 transitions. Second operand 12 states. [2020-12-22 08:30:43,143 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2020-12-22 08:30:49,854 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2020-12-22 08:30:58,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:58,067 INFO L93 Difference]: Finished difference Result 51398 states and 75769 transitions. [2020-12-22 08:30:58,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 08:30:58,068 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-12-22 08:30:58,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:58,111 INFO L225 Difference]: With dead ends: 51398 [2020-12-22 08:30:58,111 INFO L226 Difference]: Without dead ends: 47078 [2020-12-22 08:30:58,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=191, Invalid=459, Unknown=0, NotChecked=0, Total=650 [2020-12-22 08:30:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47078 states. [2020-12-22 08:31:00,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47078 to 14007. [2020-12-22 08:31:00,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14007 states. [2020-12-22 08:31:00,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14007 states to 14007 states and 19412 transitions. [2020-12-22 08:31:00,275 INFO L78 Accepts]: Start accepts. Automaton has 14007 states and 19412 transitions. Word has length 68 [2020-12-22 08:31:00,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:31:00,275 INFO L481 AbstractCegarLoop]: Abstraction has 14007 states and 19412 transitions. [2020-12-22 08:31:00,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:31:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 14007 states and 19412 transitions. [2020-12-22 08:31:00,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:31:00,282 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:31:00,282 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 08:31:00,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:31:00,282 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 08:31:00,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:31:00,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1836776824, now seen corresponding path program 1 times [2020-12-22 08:31:00,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:31:00,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586767208] [2020-12-22 08:31:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:31:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:31:00,341 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 08:31:00,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586767208] [2020-12-22 08:31:00,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:31:00,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:31:00,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930420058] [2020-12-22 08:31:00,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:31:00,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:31:00,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:31:00,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:31:00,343 INFO L87 Difference]: Start difference. First operand 14007 states and 19412 transitions. Second operand 3 states. [2020-12-22 08:31:03,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:31:03,683 INFO L93 Difference]: Finished difference Result 22068 states and 31615 transitions. [2020-12-22 08:31:03,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:31:03,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-22 08:31:03,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:31:03,696 INFO L225 Difference]: With dead ends: 22068 [2020-12-22 08:31:03,696 INFO L226 Difference]: Without dead ends: 13425 [2020-12-22 08:31:03,705 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 08:31:03,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13425 states. [2020-12-22 08:31:06,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13425 to 13407. [2020-12-22 08:31:06,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13407 states. [2020-12-22 08:31:06,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13407 states to 13407 states and 19139 transitions. [2020-12-22 08:31:06,261 INFO L78 Accepts]: Start accepts. Automaton has 13407 states and 19139 transitions. Word has length 68 [2020-12-22 08:31:06,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:31:06,261 INFO L481 AbstractCegarLoop]: Abstraction has 13407 states and 19139 transitions. [2020-12-22 08:31:06,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:31:06,262 INFO L276 IsEmpty]: Start isEmpty. Operand 13407 states and 19139 transitions. [2020-12-22 08:31:06,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:31:06,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:31:06,268 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 08:31:06,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:31:06,268 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 08:31:06,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:31:06,269 INFO L82 PathProgramCache]: Analyzing trace with hash 837543786, now seen corresponding path program 1 times [2020-12-22 08:31:06,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:31:06,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428160697] [2020-12-22 08:31:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:31:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:31:06,336 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 08:31:06,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428160697] [2020-12-22 08:31:06,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:31:06,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:31:06,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497861123] [2020-12-22 08:31:06,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:31:06,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:31:06,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:31:06,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:31:06,339 INFO L87 Difference]: Start difference. First operand 13407 states and 19139 transitions. Second operand 3 states. [2020-12-22 08:31:10,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:31:10,597 INFO L93 Difference]: Finished difference Result 25452 states and 37506 transitions. [2020-12-22 08:31:10,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:31:10,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-12-22 08:31:10,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:31:10,612 INFO L225 Difference]: With dead ends: 25452 [2020-12-22 08:31:10,612 INFO L226 Difference]: Without dead ends: 15801 [2020-12-22 08:31:10,620 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 08:31:10,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15801 states.