/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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:46:19,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:46:19,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:46:19,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:46:19,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:46:19,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:46:19,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:46:19,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:46:19,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:46:19,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:46:19,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:46:19,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:46:19,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:46:19,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:46:19,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:46:19,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:46:19,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:46:19,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:46:19,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:46:19,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:46:19,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:46:19,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:46:19,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:46:19,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:46:19,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:46:19,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:46:19,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:46:19,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:46:19,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:46:19,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:46:19,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:46:19,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:46:19,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:46:19,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:46:19,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:46:19,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:46:19,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:46:19,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:46:19,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:46:19,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:46:19,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:46:19,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:46:19,349 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:46:19,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:46:19,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:46:19,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:46:19,355 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:46:19,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:46:19,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:46:19,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:46:19,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:46:19,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:46:19,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:46:19,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:46:19,359 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:46:19,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:46:19,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:46:19,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:46:19,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:46:19,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:46:19,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:46:19,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:46:19,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:46:19,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:46:19,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:46:19,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:46:19,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:46:19,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:46:19,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:46:19,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:46:19,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:46:19,836 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:46:19,837 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:46:19,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:46:19,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed91e3b09/1d747975c40b473c98f60c7a9e6b777c/FLAGee7357368 [2020-12-22 08:46:20,774 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:46:20,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:46:20,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed91e3b09/1d747975c40b473c98f60c7a9e6b777c/FLAGee7357368 [2020-12-22 08:46:20,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed91e3b09/1d747975c40b473c98f60c7a9e6b777c [2020-12-22 08:46:20,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:46:20,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:46:20,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:46:20,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:46:20,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:46:20,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:46:20" (1/1) ... [2020-12-22 08:46:20,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e890c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:20, skipping insertion in model container [2020-12-22 08:46:20,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:46:20" (1/1) ... [2020-12-22 08:46:20,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:46:21,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:46:21,610 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10525,10538] [2020-12-22 08:46:21,636 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14382,14395] [2020-12-22 08:46:21,646 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15603,15616] [2020-12-22 08:46:21,653 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16309,16322] [2020-12-22 08:46:21,665 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17853,17866] [2020-12-22 08:46:21,671 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18559,18572] [2020-12-22 08:46:21,678 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19588,19601] [2020-12-22 08:46:21,693 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21994,22007] [2020-12-22 08:46:21,699 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22703,22716] [2020-12-22 08:46:21,706 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23740,23753] [2020-12-22 08:46:21,724 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25636,25649] [2020-12-22 08:46:21,759 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29544,29557] [2020-12-22 08:46:21,764 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30253,30266] [2020-12-22 08:46:21,771 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31285,31298] [2020-12-22 08:46:21,782 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33176,33189] [2020-12-22 08:46:21,800 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36389,36402] [2020-12-22 08:46:22,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:46:22,073 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:46:22,182 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10525,10538] [2020-12-22 08:46:22,225 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14382,14395] [2020-12-22 08:46:22,245 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15603,15616] [2020-12-22 08:46:22,258 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16309,16322] [2020-12-22 08:46:22,278 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17853,17866] [2020-12-22 08:46:22,291 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18559,18572] [2020-12-22 08:46:22,306 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19588,19601] [2020-12-22 08:46:22,340 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21994,22007] [2020-12-22 08:46:22,353 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22703,22716] [2020-12-22 08:46:22,368 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23740,23753] [2020-12-22 08:46:22,398 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25636,25649] [2020-12-22 08:46:22,453 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29544,29557] [2020-12-22 08:46:22,464 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30253,30266] [2020-12-22 08:46:22,480 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31285,31298] [2020-12-22 08:46:22,490 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33176,33189] [2020-12-22 08:46:22,503 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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36389,36402] [2020-12-22 08:46:22,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:46:22,662 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:46:22,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22 WrapperNode [2020-12-22 08:46:22,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:46:22,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:46:22,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:46:22,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:46:22,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (1/1) ... [2020-12-22 08:46:22,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (1/1) ... [2020-12-22 08:46:22,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:46:22,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:46:22,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:46:22,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:46:22,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (1/1) ... [2020-12-22 08:46:22,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (1/1) ... [2020-12-22 08:46:22,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (1/1) ... [2020-12-22 08:46:22,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (1/1) ... [2020-12-22 08:46:22,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (1/1) ... [2020-12-22 08:46:22,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (1/1) ... [2020-12-22 08:46:22,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (1/1) ... [2020-12-22 08:46:23,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:46:23,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:46:23,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:46:23,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:46:23,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (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 08:46:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:46:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:46:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:46:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:46:25,607 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:46:25,607 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:46:25,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:46:25 BoogieIcfgContainer [2020-12-22 08:46:25,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:46:25,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:46:25,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:46:25,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:46:25,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:46:20" (1/3) ... [2020-12-22 08:46:25,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28109847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:46:25, skipping insertion in model container [2020-12-22 08:46:25,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:22" (2/3) ... [2020-12-22 08:46:25,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28109847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:46:25, skipping insertion in model container [2020-12-22 08:46:25,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:46:25" (3/3) ... [2020-12-22 08:46:25,621 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:46:25,629 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:46:25,635 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-22 08:46:25,653 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-22 08:46:25,686 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:46:25,686 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:46:25,686 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:46:25,687 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:46:25,687 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:46:25,687 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:46:25,687 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:46:25,687 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:46:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states. [2020-12-22 08:46:25,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 08:46:25,745 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:25,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:25,747 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:25,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:25,754 INFO L82 PathProgramCache]: Analyzing trace with hash -50607350, now seen corresponding path program 1 times [2020-12-22 08:46:25,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:25,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967063603] [2020-12-22 08:46:25,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:26,366 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 08:46:26,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967063603] [2020-12-22 08:46:26,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:26,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:46:26,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146510782] [2020-12-22 08:46:26,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:46:26,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:26,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:46:26,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:46:26,394 INFO L87 Difference]: Start difference. First operand 626 states. Second operand 6 states. [2020-12-22 08:46:27,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:27,151 INFO L93 Difference]: Finished difference Result 1182 states and 2030 transitions. [2020-12-22 08:46:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:46:27,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2020-12-22 08:46:27,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:27,175 INFO L225 Difference]: With dead ends: 1182 [2020-12-22 08:46:27,175 INFO L226 Difference]: Without dead ends: 709 [2020-12-22 08:46:27,185 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 08:46:27,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2020-12-22 08:46:27,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 649. [2020-12-22 08:46:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-12-22 08:46:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 864 transitions. [2020-12-22 08:46:27,306 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 864 transitions. Word has length 71 [2020-12-22 08:46:27,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:27,307 INFO L481 AbstractCegarLoop]: Abstraction has 649 states and 864 transitions. [2020-12-22 08:46:27,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:46:27,307 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 864 transitions. [2020-12-22 08:46:27,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 08:46:27,315 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:27,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:27,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:46:27,316 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:27,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:27,319 INFO L82 PathProgramCache]: Analyzing trace with hash -329897172, now seen corresponding path program 1 times [2020-12-22 08:46:27,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:27,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192359124] [2020-12-22 08:46:27,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:27,657 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 08:46:27,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192359124] [2020-12-22 08:46:27,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:27,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:46:27,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286074353] [2020-12-22 08:46:27,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:46:27,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:27,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:46:27,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:46:27,665 INFO L87 Difference]: Start difference. First operand 649 states and 864 transitions. Second operand 6 states. [2020-12-22 08:46:28,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:28,237 INFO L93 Difference]: Finished difference Result 1361 states and 1839 transitions. [2020-12-22 08:46:28,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:46:28,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-12-22 08:46:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:28,244 INFO L225 Difference]: With dead ends: 1361 [2020-12-22 08:46:28,245 INFO L226 Difference]: Without dead ends: 834 [2020-12-22 08:46:28,248 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 08:46:28,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-12-22 08:46:28,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 776. [2020-12-22 08:46:28,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-12-22 08:46:28,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1055 transitions. [2020-12-22 08:46:28,294 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1055 transitions. Word has length 72 [2020-12-22 08:46:28,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:28,295 INFO L481 AbstractCegarLoop]: Abstraction has 776 states and 1055 transitions. [2020-12-22 08:46:28,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:46:28,295 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1055 transitions. [2020-12-22 08:46:28,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 08:46:28,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:28,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:28,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:46:28,298 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:28,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:28,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1203518485, now seen corresponding path program 1 times [2020-12-22 08:46:28,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:28,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697732183] [2020-12-22 08:46:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:28,436 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 08:46:28,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697732183] [2020-12-22 08:46:28,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:28,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:46:28,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321600908] [2020-12-22 08:46:28,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:46:28,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:28,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:46:28,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:46:28,439 INFO L87 Difference]: Start difference. First operand 776 states and 1055 transitions. Second operand 6 states. [2020-12-22 08:46:29,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:29,015 INFO L93 Difference]: Finished difference Result 1842 states and 2556 transitions. [2020-12-22 08:46:29,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:46:29,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2020-12-22 08:46:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:29,023 INFO L225 Difference]: With dead ends: 1842 [2020-12-22 08:46:29,024 INFO L226 Difference]: Without dead ends: 1156 [2020-12-22 08:46:29,026 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 08:46:29,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-12-22 08:46:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1096. [2020-12-22 08:46:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2020-12-22 08:46:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1538 transitions. [2020-12-22 08:46:29,093 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1538 transitions. Word has length 73 [2020-12-22 08:46:29,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:29,094 INFO L481 AbstractCegarLoop]: Abstraction has 1096 states and 1538 transitions. [2020-12-22 08:46:29,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:46:29,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1538 transitions. [2020-12-22 08:46:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 08:46:29,096 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:29,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:29,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:46:29,097 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:29,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:29,098 INFO L82 PathProgramCache]: Analyzing trace with hash -2052061875, now seen corresponding path program 1 times [2020-12-22 08:46:29,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:29,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071588011] [2020-12-22 08:46:29,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:29,195 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 08:46:29,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071588011] [2020-12-22 08:46:29,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:29,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:46:29,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547330074] [2020-12-22 08:46:29,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:46:29,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:29,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:46:29,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:46:29,198 INFO L87 Difference]: Start difference. First operand 1096 states and 1538 transitions. Second operand 5 states. [2020-12-22 08:46:29,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:29,654 INFO L93 Difference]: Finished difference Result 2102 states and 2983 transitions. [2020-12-22 08:46:29,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:46:29,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2020-12-22 08:46:29,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:29,661 INFO L225 Difference]: With dead ends: 2102 [2020-12-22 08:46:29,661 INFO L226 Difference]: Without dead ends: 1074 [2020-12-22 08:46:29,663 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 08:46:29,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2020-12-22 08:46:29,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1074. [2020-12-22 08:46:29,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1074 states. [2020-12-22 08:46:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1506 transitions. [2020-12-22 08:46:29,730 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1506 transitions. Word has length 74 [2020-12-22 08:46:29,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:29,731 INFO L481 AbstractCegarLoop]: Abstraction has 1074 states and 1506 transitions. [2020-12-22 08:46:29,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:46:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1506 transitions. [2020-12-22 08:46:29,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:46:29,733 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:29,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:29,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:46:29,734 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:29,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:29,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1541244464, now seen corresponding path program 1 times [2020-12-22 08:46:29,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:29,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194496120] [2020-12-22 08:46:29,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:29,826 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 08:46:29,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194496120] [2020-12-22 08:46:29,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:29,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:46:29,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199666736] [2020-12-22 08:46:29,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:46:29,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:29,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:46:29,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:46:29,829 INFO L87 Difference]: Start difference. First operand 1074 states and 1506 transitions. Second operand 5 states. [2020-12-22 08:46:30,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:30,273 INFO L93 Difference]: Finished difference Result 2080 states and 2943 transitions. [2020-12-22 08:46:30,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:46:30,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-12-22 08:46:30,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:30,282 INFO L225 Difference]: With dead ends: 2080 [2020-12-22 08:46:30,282 INFO L226 Difference]: Without dead ends: 1060 [2020-12-22 08:46:30,284 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 08:46:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-12-22 08:46:30,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1060. [2020-12-22 08:46:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-12-22 08:46:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1483 transitions. [2020-12-22 08:46:30,355 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1483 transitions. Word has length 75 [2020-12-22 08:46:30,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:30,356 INFO L481 AbstractCegarLoop]: Abstraction has 1060 states and 1483 transitions. [2020-12-22 08:46:30,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:46:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1483 transitions. [2020-12-22 08:46:30,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 08:46:30,360 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:30,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:30,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:46:30,361 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:30,362 INFO L82 PathProgramCache]: Analyzing trace with hash -976633234, now seen corresponding path program 1 times [2020-12-22 08:46:30,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:30,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477725587] [2020-12-22 08:46:30,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:30,612 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 08:46:30,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477725587] [2020-12-22 08:46:30,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:30,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:46:30,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829991202] [2020-12-22 08:46:30,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:46:30,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:30,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:46:30,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:46:30,626 INFO L87 Difference]: Start difference. First operand 1060 states and 1483 transitions. Second operand 8 states. [2020-12-22 08:46:31,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:31,683 INFO L93 Difference]: Finished difference Result 1906 states and 2694 transitions. [2020-12-22 08:46:31,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:46:31,683 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-12-22 08:46:31,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:31,691 INFO L225 Difference]: With dead ends: 1906 [2020-12-22 08:46:31,691 INFO L226 Difference]: Without dead ends: 1223 [2020-12-22 08:46:31,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:46:31,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-12-22 08:46:31,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 921. [2020-12-22 08:46:31,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:46:31,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1287 transitions. [2020-12-22 08:46:31,783 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1287 transitions. Word has length 76 [2020-12-22 08:46:31,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:31,784 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1287 transitions. [2020-12-22 08:46:31,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:46:31,785 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1287 transitions. [2020-12-22 08:46:31,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 08:46:31,790 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:31,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:31,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:46:31,791 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:31,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:31,792 INFO L82 PathProgramCache]: Analyzing trace with hash 649885335, now seen corresponding path program 1 times [2020-12-22 08:46:31,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:31,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246612424] [2020-12-22 08:46:31,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:32,008 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 08:46:32,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246612424] [2020-12-22 08:46:32,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:32,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:32,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328937862] [2020-12-22 08:46:32,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:32,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:32,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:32,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:32,011 INFO L87 Difference]: Start difference. First operand 921 states and 1287 transitions. Second operand 9 states. [2020-12-22 08:46:33,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:33,388 INFO L93 Difference]: Finished difference Result 2249 states and 3283 transitions. [2020-12-22 08:46:33,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:33,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-12-22 08:46:33,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:33,398 INFO L225 Difference]: With dead ends: 2249 [2020-12-22 08:46:33,398 INFO L226 Difference]: Without dead ends: 1665 [2020-12-22 08:46:33,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:46:33,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2020-12-22 08:46:33,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 921. [2020-12-22 08:46:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:46:33,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1286 transitions. [2020-12-22 08:46:33,520 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1286 transitions. Word has length 76 [2020-12-22 08:46:33,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:33,520 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1286 transitions. [2020-12-22 08:46:33,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1286 transitions. [2020-12-22 08:46:33,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 08:46:33,522 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:33,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:33,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:46:33,522 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:33,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:33,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1538930145, now seen corresponding path program 1 times [2020-12-22 08:46:33,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:33,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073837988] [2020-12-22 08:46:33,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:33,682 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 08:46:33,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073837988] [2020-12-22 08:46:33,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:33,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:33,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534231202] [2020-12-22 08:46:33,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:33,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:33,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:33,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:33,685 INFO L87 Difference]: Start difference. First operand 921 states and 1286 transitions. Second operand 9 states. [2020-12-22 08:46:35,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:35,440 INFO L93 Difference]: Finished difference Result 3150 states and 4603 transitions. [2020-12-22 08:46:35,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:35,441 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-12-22 08:46:35,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:35,455 INFO L225 Difference]: With dead ends: 3150 [2020-12-22 08:46:35,456 INFO L226 Difference]: Without dead ends: 2629 [2020-12-22 08:46:35,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:46:35,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2020-12-22 08:46:35,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 921. [2020-12-22 08:46:35,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:46:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1285 transitions. [2020-12-22 08:46:35,607 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1285 transitions. Word has length 76 [2020-12-22 08:46:35,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:35,608 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1285 transitions. [2020-12-22 08:46:35,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:35,608 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1285 transitions. [2020-12-22 08:46:35,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:46:35,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:35,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:35,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:46:35,611 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:35,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:35,611 INFO L82 PathProgramCache]: Analyzing trace with hash 684383254, now seen corresponding path program 1 times [2020-12-22 08:46:35,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:35,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754203131] [2020-12-22 08:46:35,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:35,879 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 08:46:35,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754203131] [2020-12-22 08:46:35,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:35,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:46:35,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188884742] [2020-12-22 08:46:35,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:46:35,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:35,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:46:35,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:46:35,882 INFO L87 Difference]: Start difference. First operand 921 states and 1285 transitions. Second operand 11 states. [2020-12-22 08:46:39,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:39,997 INFO L93 Difference]: Finished difference Result 6911 states and 10230 transitions. [2020-12-22 08:46:39,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:46:39,998 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-12-22 08:46:39,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:40,033 INFO L225 Difference]: With dead ends: 6911 [2020-12-22 08:46:40,033 INFO L226 Difference]: Without dead ends: 6379 [2020-12-22 08:46:40,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:46:40,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6379 states. [2020-12-22 08:46:40,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6379 to 925. [2020-12-22 08:46:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:46:40,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1289 transitions. [2020-12-22 08:46:40,325 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1289 transitions. Word has length 78 [2020-12-22 08:46:40,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:40,326 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1289 transitions. [2020-12-22 08:46:40,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:46:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1289 transitions. [2020-12-22 08:46:40,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:46:40,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:40,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:40,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:46:40,328 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:40,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:40,329 INFO L82 PathProgramCache]: Analyzing trace with hash 275538026, now seen corresponding path program 1 times [2020-12-22 08:46:40,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:40,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740757823] [2020-12-22 08:46:40,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:40,550 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 08:46:40,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740757823] [2020-12-22 08:46:40,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:40,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:40,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625391388] [2020-12-22 08:46:40,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:40,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:40,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:40,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:40,553 INFO L87 Difference]: Start difference. First operand 925 states and 1289 transitions. Second operand 9 states. [2020-12-22 08:46:42,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:42,250 INFO L93 Difference]: Finished difference Result 3103 states and 4531 transitions. [2020-12-22 08:46:42,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:42,251 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-12-22 08:46:42,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:42,264 INFO L225 Difference]: With dead ends: 3103 [2020-12-22 08:46:42,264 INFO L226 Difference]: Without dead ends: 2601 [2020-12-22 08:46:42,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:46:42,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2020-12-22 08:46:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 925. [2020-12-22 08:46:42,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:46:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1288 transitions. [2020-12-22 08:46:42,417 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1288 transitions. Word has length 78 [2020-12-22 08:46:42,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:42,418 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1288 transitions. [2020-12-22 08:46:42,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:42,418 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1288 transitions. [2020-12-22 08:46:42,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:46:42,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:42,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:42,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:46:42,420 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:42,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:42,421 INFO L82 PathProgramCache]: Analyzing trace with hash 643640201, now seen corresponding path program 1 times [2020-12-22 08:46:42,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:42,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259479248] [2020-12-22 08:46:42,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:42,649 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 08:46:42,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259479248] [2020-12-22 08:46:42,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:42,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:46:42,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678657539] [2020-12-22 08:46:42,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:46:42,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:42,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:46:42,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:46:42,660 INFO L87 Difference]: Start difference. First operand 925 states and 1288 transitions. Second operand 11 states. [2020-12-22 08:46:46,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:46,638 INFO L93 Difference]: Finished difference Result 6191 states and 9150 transitions. [2020-12-22 08:46:46,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:46:46,639 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-12-22 08:46:46,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:46,665 INFO L225 Difference]: With dead ends: 6191 [2020-12-22 08:46:46,665 INFO L226 Difference]: Without dead ends: 5693 [2020-12-22 08:46:46,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:46:46,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2020-12-22 08:46:46,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 929. [2020-12-22 08:46:46,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:46:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1292 transitions. [2020-12-22 08:46:46,929 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1292 transitions. Word has length 78 [2020-12-22 08:46:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:46,929 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1292 transitions. [2020-12-22 08:46:46,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:46:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1292 transitions. [2020-12-22 08:46:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:46:46,931 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:46,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:46,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:46:46,932 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:46,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:46,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1207054515, now seen corresponding path program 1 times [2020-12-22 08:46:46,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:46,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242223365] [2020-12-22 08:46:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:47,075 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 08:46:47,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242223365] [2020-12-22 08:46:47,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:47,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:47,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697428212] [2020-12-22 08:46:47,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:47,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:47,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:47,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:47,077 INFO L87 Difference]: Start difference. First operand 929 states and 1292 transitions. Second operand 9 states. [2020-12-22 08:46:48,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:48,985 INFO L93 Difference]: Finished difference Result 3098 states and 4523 transitions. [2020-12-22 08:46:48,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:48,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-12-22 08:46:48,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:48,992 INFO L225 Difference]: With dead ends: 3098 [2020-12-22 08:46:48,992 INFO L226 Difference]: Without dead ends: 2601 [2020-12-22 08:46:48,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:46:48,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2020-12-22 08:46:49,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 929. [2020-12-22 08:46:49,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:46:49,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1291 transitions. [2020-12-22 08:46:49,174 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1291 transitions. Word has length 78 [2020-12-22 08:46:49,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:49,174 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1291 transitions. [2020-12-22 08:46:49,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:49,174 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1291 transitions. [2020-12-22 08:46:49,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:46:49,176 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:49,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:49,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:46:49,177 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:49,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:49,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1808320783, now seen corresponding path program 1 times [2020-12-22 08:46:49,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:49,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978710332] [2020-12-22 08:46:49,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:49,402 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 08:46:49,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978710332] [2020-12-22 08:46:49,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:49,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:46:49,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962494057] [2020-12-22 08:46:49,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:46:49,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:49,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:46:49,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:46:49,405 INFO L87 Difference]: Start difference. First operand 929 states and 1291 transitions. Second operand 11 states. [2020-12-22 08:46:52,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:52,154 INFO L93 Difference]: Finished difference Result 2691 states and 3879 transitions. [2020-12-22 08:46:52,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:46:52,155 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-12-22 08:46:52,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:52,160 INFO L225 Difference]: With dead ends: 2691 [2020-12-22 08:46:52,160 INFO L226 Difference]: Without dead ends: 2087 [2020-12-22 08:46:52,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-12-22 08:46:52,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2020-12-22 08:46:52,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 933. [2020-12-22 08:46:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:46:52,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1295 transitions. [2020-12-22 08:46:52,333 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1295 transitions. Word has length 78 [2020-12-22 08:46:52,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:52,334 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1295 transitions. [2020-12-22 08:46:52,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:46:52,334 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1295 transitions. [2020-12-22 08:46:52,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:46:52,335 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:52,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:52,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:46:52,336 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:52,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:52,337 INFO L82 PathProgramCache]: Analyzing trace with hash 688086315, now seen corresponding path program 1 times [2020-12-22 08:46:52,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:52,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316648957] [2020-12-22 08:46:52,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:52,483 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 08:46:52,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316648957] [2020-12-22 08:46:52,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:52,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:52,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676970928] [2020-12-22 08:46:52,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:52,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:52,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:52,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:52,486 INFO L87 Difference]: Start difference. First operand 933 states and 1295 transitions. Second operand 9 states. [2020-12-22 08:46:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:54,448 INFO L93 Difference]: Finished difference Result 3103 states and 4526 transitions. [2020-12-22 08:46:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:54,449 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-12-22 08:46:54,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:54,454 INFO L225 Difference]: With dead ends: 3103 [2020-12-22 08:46:54,454 INFO L226 Difference]: Without dead ends: 2605 [2020-12-22 08:46:54,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:46:54,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2020-12-22 08:46:54,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 933. [2020-12-22 08:46:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:46:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1294 transitions. [2020-12-22 08:46:54,662 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1294 transitions. Word has length 78 [2020-12-22 08:46:54,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:54,663 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1294 transitions. [2020-12-22 08:46:54,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:54,663 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1294 transitions. [2020-12-22 08:46:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:46:54,668 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:54,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:54,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:46:54,668 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:54,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:54,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1096931543, now seen corresponding path program 1 times [2020-12-22 08:46:54,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:54,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773551361] [2020-12-22 08:46:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:54,809 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 08:46:54,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773551361] [2020-12-22 08:46:54,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:54,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:54,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682859453] [2020-12-22 08:46:54,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:54,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:54,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:54,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:54,811 INFO L87 Difference]: Start difference. First operand 933 states and 1294 transitions. Second operand 9 states. [2020-12-22 08:46:56,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:56,778 INFO L93 Difference]: Finished difference Result 3157 states and 4599 transitions. [2020-12-22 08:46:56,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:56,778 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-12-22 08:46:56,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:56,782 INFO L225 Difference]: With dead ends: 3157 [2020-12-22 08:46:56,782 INFO L226 Difference]: Without dead ends: 2637 [2020-12-22 08:46:56,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:46:56,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2020-12-22 08:46:56,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 933. [2020-12-22 08:46:56,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:46:56,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1293 transitions. [2020-12-22 08:46:56,958 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1293 transitions. Word has length 78 [2020-12-22 08:46:56,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:56,959 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1293 transitions. [2020-12-22 08:46:56,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:56,959 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1293 transitions. [2020-12-22 08:46:56,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:46:56,960 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:56,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:56,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:46:56,961 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:56,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:56,962 INFO L82 PathProgramCache]: Analyzing trace with hash 160689667, now seen corresponding path program 1 times [2020-12-22 08:46:56,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:56,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980799883] [2020-12-22 08:46:56,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:57,129 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 08:46:57,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980799883] [2020-12-22 08:46:57,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:57,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:57,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974453025] [2020-12-22 08:46:57,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:57,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:57,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:57,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:57,132 INFO L87 Difference]: Start difference. First operand 933 states and 1293 transitions. Second operand 9 states. [2020-12-22 08:46:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:58,691 INFO L93 Difference]: Finished difference Result 2281 states and 3304 transitions. [2020-12-22 08:46:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:46:58,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:46:58,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:58,695 INFO L225 Difference]: With dead ends: 2281 [2020-12-22 08:46:58,695 INFO L226 Difference]: Without dead ends: 1677 [2020-12-22 08:46:58,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:46:58,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2020-12-22 08:46:58,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 929. [2020-12-22 08:46:58,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:46:58,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1288 transitions. [2020-12-22 08:46:58,889 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1288 transitions. Word has length 79 [2020-12-22 08:46:58,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:58,889 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1288 transitions. [2020-12-22 08:46:58,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:58,890 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1288 transitions. [2020-12-22 08:46:58,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:46:58,891 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:58,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:58,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:46:58,892 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:46:58,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:58,893 INFO L82 PathProgramCache]: Analyzing trace with hash 308307099, now seen corresponding path program 1 times [2020-12-22 08:46:58,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:58,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311195139] [2020-12-22 08:46:58,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:59,041 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 08:46:59,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311195139] [2020-12-22 08:46:59,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:59,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:59,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541419525] [2020-12-22 08:46:59,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:59,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:59,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:59,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:59,044 INFO L87 Difference]: Start difference. First operand 929 states and 1288 transitions. Second operand 9 states. [2020-12-22 08:47:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:01,078 INFO L93 Difference]: Finished difference Result 3165 states and 4612 transitions. [2020-12-22 08:47:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:47:01,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:47:01,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:01,083 INFO L225 Difference]: With dead ends: 3165 [2020-12-22 08:47:01,083 INFO L226 Difference]: Without dead ends: 2633 [2020-12-22 08:47:01,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:47:01,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2020-12-22 08:47:01,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 925. [2020-12-22 08:47:01,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:47:01,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1283 transitions. [2020-12-22 08:47:01,300 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1283 transitions. Word has length 79 [2020-12-22 08:47:01,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:01,300 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1283 transitions. [2020-12-22 08:47:01,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1283 transitions. [2020-12-22 08:47:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:47:01,302 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:01,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:01,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:47:01,302 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:01,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:01,303 INFO L82 PathProgramCache]: Analyzing trace with hash -754652965, now seen corresponding path program 1 times [2020-12-22 08:47:01,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:01,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181958107] [2020-12-22 08:47:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:01,452 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 08:47:01,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181958107] [2020-12-22 08:47:01,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:01,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:01,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808344587] [2020-12-22 08:47:01,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:01,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:01,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:01,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:01,454 INFO L87 Difference]: Start difference. First operand 925 states and 1283 transitions. Second operand 9 states. [2020-12-22 08:47:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:03,645 INFO L93 Difference]: Finished difference Result 3095 states and 4514 transitions. [2020-12-22 08:47:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:47:03,646 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:47:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:03,651 INFO L225 Difference]: With dead ends: 3095 [2020-12-22 08:47:03,651 INFO L226 Difference]: Without dead ends: 2597 [2020-12-22 08:47:03,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:47:03,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-12-22 08:47:03,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 921. [2020-12-22 08:47:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:47:03,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1278 transitions. [2020-12-22 08:47:03,907 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1278 transitions. Word has length 79 [2020-12-22 08:47:03,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:03,907 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1278 transitions. [2020-12-22 08:47:03,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:03,907 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1278 transitions. [2020-12-22 08:47:03,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:03,909 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:03,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:03,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:47:03,909 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:03,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:03,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1780834374, now seen corresponding path program 1 times [2020-12-22 08:47:03,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:03,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299787371] [2020-12-22 08:47:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:04,089 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 08:47:04,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299787371] [2020-12-22 08:47:04,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:04,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:04,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652031033] [2020-12-22 08:47:04,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:04,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:04,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:04,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:04,093 INFO L87 Difference]: Start difference. First operand 921 states and 1278 transitions. Second operand 9 states. [2020-12-22 08:47:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:06,415 INFO L93 Difference]: Finished difference Result 3425 states and 5049 transitions. [2020-12-22 08:47:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:47:06,416 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:47:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:06,422 INFO L225 Difference]: With dead ends: 3425 [2020-12-22 08:47:06,423 INFO L226 Difference]: Without dead ends: 2937 [2020-12-22 08:47:06,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:47:06,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2020-12-22 08:47:06,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 921. [2020-12-22 08:47:06,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:47:06,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1277 transitions. [2020-12-22 08:47:06,667 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1277 transitions. Word has length 80 [2020-12-22 08:47:06,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:06,667 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1277 transitions. [2020-12-22 08:47:06,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:06,667 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1277 transitions. [2020-12-22 08:47:06,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:06,669 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:06,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:06,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:47:06,669 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:06,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:06,670 INFO L82 PathProgramCache]: Analyzing trace with hash 515089470, now seen corresponding path program 1 times [2020-12-22 08:47:06,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:06,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380293084] [2020-12-22 08:47:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:06,948 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 08:47:06,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380293084] [2020-12-22 08:47:06,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:06,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:47:06,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216067000] [2020-12-22 08:47:06,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:47:06,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:06,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:47:06,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:47:06,955 INFO L87 Difference]: Start difference. First operand 921 states and 1277 transitions. Second operand 12 states. [2020-12-22 08:47:11,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:11,112 INFO L93 Difference]: Finished difference Result 3705 states and 5390 transitions. [2020-12-22 08:47:11,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:47:11,112 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-12-22 08:47:11,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:11,117 INFO L225 Difference]: With dead ends: 3705 [2020-12-22 08:47:11,117 INFO L226 Difference]: Without dead ends: 3214 [2020-12-22 08:47:11,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:47:11,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3214 states. [2020-12-22 08:47:11,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3214 to 921. [2020-12-22 08:47:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:47:11,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1276 transitions. [2020-12-22 08:47:11,427 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1276 transitions. Word has length 80 [2020-12-22 08:47:11,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:11,427 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1276 transitions. [2020-12-22 08:47:11,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:47:11,427 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1276 transitions. [2020-12-22 08:47:11,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:11,429 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:11,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:11,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:47:11,429 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:11,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:11,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1270226045, now seen corresponding path program 1 times [2020-12-22 08:47:11,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:11,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238141624] [2020-12-22 08:47:11,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:11,589 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 08:47:11,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238141624] [2020-12-22 08:47:11,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:11,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:11,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441988104] [2020-12-22 08:47:11,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:11,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:11,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:11,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:11,591 INFO L87 Difference]: Start difference. First operand 921 states and 1276 transitions. Second operand 9 states. [2020-12-22 08:47:13,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:13,864 INFO L93 Difference]: Finished difference Result 3428 states and 5050 transitions. [2020-12-22 08:47:13,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:47:13,865 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:47:13,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:13,869 INFO L225 Difference]: With dead ends: 3428 [2020-12-22 08:47:13,869 INFO L226 Difference]: Without dead ends: 2937 [2020-12-22 08:47:13,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:47:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2020-12-22 08:47:14,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 921. [2020-12-22 08:47:14,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:47:14,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1275 transitions. [2020-12-22 08:47:14,298 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1275 transitions. Word has length 80 [2020-12-22 08:47:14,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:14,299 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1275 transitions. [2020-12-22 08:47:14,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:14,299 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1275 transitions. [2020-12-22 08:47:14,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:14,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:14,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:14,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:47:14,302 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:14,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:14,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1112544149, now seen corresponding path program 1 times [2020-12-22 08:47:14,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:14,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957735775] [2020-12-22 08:47:14,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:14,535 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 08:47:14,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957735775] [2020-12-22 08:47:14,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:14,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:47:14,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759658093] [2020-12-22 08:47:14,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:47:14,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:14,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:47:14,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:47:14,538 INFO L87 Difference]: Start difference. First operand 921 states and 1275 transitions. Second operand 11 states. [2020-12-22 08:47:19,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:19,683 INFO L93 Difference]: Finished difference Result 6197 states and 9145 transitions. [2020-12-22 08:47:19,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:47:19,686 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-12-22 08:47:19,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:19,694 INFO L225 Difference]: With dead ends: 6197 [2020-12-22 08:47:19,694 INFO L226 Difference]: Without dead ends: 5694 [2020-12-22 08:47:19,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:47:19,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2020-12-22 08:47:20,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 925. [2020-12-22 08:47:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:47:20,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1279 transitions. [2020-12-22 08:47:20,120 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1279 transitions. Word has length 80 [2020-12-22 08:47:20,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:20,121 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1279 transitions. [2020-12-22 08:47:20,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:47:20,121 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1279 transitions. [2020-12-22 08:47:20,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:20,122 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:20,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:20,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:47:20,123 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:20,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:20,124 INFO L82 PathProgramCache]: Analyzing trace with hash -955374417, now seen corresponding path program 1 times [2020-12-22 08:47:20,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:20,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158519384] [2020-12-22 08:47:20,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:20,318 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 08:47:20,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158519384] [2020-12-22 08:47:20,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:20,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:20,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90139098] [2020-12-22 08:47:20,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:20,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:20,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:20,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:20,320 INFO L87 Difference]: Start difference. First operand 925 states and 1279 transitions. Second operand 9 states. [2020-12-22 08:47:23,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:23,029 INFO L93 Difference]: Finished difference Result 3429 states and 5050 transitions. [2020-12-22 08:47:23,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:47:23,029 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:47:23,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:23,052 INFO L225 Difference]: With dead ends: 3429 [2020-12-22 08:47:23,052 INFO L226 Difference]: Without dead ends: 2941 [2020-12-22 08:47:23,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:47:23,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2020-12-22 08:47:23,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 925. [2020-12-22 08:47:23,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:47:23,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1278 transitions. [2020-12-22 08:47:23,334 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1278 transitions. Word has length 80 [2020-12-22 08:47:23,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:23,334 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1278 transitions. [2020-12-22 08:47:23,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:23,334 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1278 transitions. [2020-12-22 08:47:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:23,336 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:23,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:23,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:47:23,336 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:23,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:23,337 INFO L82 PathProgramCache]: Analyzing trace with hash 2073965149, now seen corresponding path program 1 times [2020-12-22 08:47:23,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:23,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738568295] [2020-12-22 08:47:23,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:23,582 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 08:47:23,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738568295] [2020-12-22 08:47:23,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:23,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:47:23,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083811470] [2020-12-22 08:47:23,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:47:23,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:23,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:47:23,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:47:23,584 INFO L87 Difference]: Start difference. First operand 925 states and 1278 transitions. Second operand 12 states. [2020-12-22 08:47:28,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:28,259 INFO L93 Difference]: Finished difference Result 3223 states and 4648 transitions. [2020-12-22 08:47:28,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:47:28,259 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-12-22 08:47:28,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:28,263 INFO L225 Difference]: With dead ends: 3223 [2020-12-22 08:47:28,263 INFO L226 Difference]: Without dead ends: 3218 [2020-12-22 08:47:28,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:47:28,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2020-12-22 08:47:28,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 925. [2020-12-22 08:47:28,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:47:28,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1277 transitions. [2020-12-22 08:47:28,644 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1277 transitions. Word has length 80 [2020-12-22 08:47:28,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:28,644 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1277 transitions. [2020-12-22 08:47:28,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:47:28,644 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1277 transitions. [2020-12-22 08:47:28,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:28,646 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:28,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:28,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:47:28,646 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:28,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:28,647 INFO L82 PathProgramCache]: Analyzing trace with hash -306680341, now seen corresponding path program 1 times [2020-12-22 08:47:28,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:28,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647221389] [2020-12-22 08:47:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:28,916 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 08:47:28,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647221389] [2020-12-22 08:47:28,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:28,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:47:28,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080901650] [2020-12-22 08:47:28,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:47:28,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:28,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:47:28,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:47:28,918 INFO L87 Difference]: Start difference. First operand 925 states and 1277 transitions. Second operand 12 states. [2020-12-22 08:47:33,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:33,380 INFO L93 Difference]: Finished difference Result 3703 states and 5384 transitions. [2020-12-22 08:47:33,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:47:33,381 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-12-22 08:47:33,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:33,384 INFO L225 Difference]: With dead ends: 3703 [2020-12-22 08:47:33,384 INFO L226 Difference]: Without dead ends: 3215 [2020-12-22 08:47:33,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:47:33,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2020-12-22 08:47:33,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 925. [2020-12-22 08:47:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:47:33,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1276 transitions. [2020-12-22 08:47:33,766 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1276 transitions. Word has length 80 [2020-12-22 08:47:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:33,766 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1276 transitions. [2020-12-22 08:47:33,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:47:33,767 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1276 transitions. [2020-12-22 08:47:33,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:33,768 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:33,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:33,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:47:33,768 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:33,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:33,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1961273491, now seen corresponding path program 1 times [2020-12-22 08:47:33,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:33,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720355526] [2020-12-22 08:47:33,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:33,939 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 08:47:33,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720355526] [2020-12-22 08:47:33,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:33,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:33,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660879624] [2020-12-22 08:47:33,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:33,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:33,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:33,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:33,942 INFO L87 Difference]: Start difference. First operand 925 states and 1276 transitions. Second operand 9 states. [2020-12-22 08:47:36,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:36,621 INFO L93 Difference]: Finished difference Result 3427 states and 5045 transitions. [2020-12-22 08:47:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:47:36,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:47:36,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:36,624 INFO L225 Difference]: With dead ends: 3427 [2020-12-22 08:47:36,625 INFO L226 Difference]: Without dead ends: 2941 [2020-12-22 08:47:36,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:47:36,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2020-12-22 08:47:36,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 925. [2020-12-22 08:47:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:47:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1275 transitions. [2020-12-22 08:47:36,868 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1275 transitions. Word has length 80 [2020-12-22 08:47:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:36,868 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1275 transitions. [2020-12-22 08:47:36,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:36,868 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1275 transitions. [2020-12-22 08:47:36,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:36,869 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:36,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:36,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:47:36,870 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:36,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:36,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1780916949, now seen corresponding path program 1 times [2020-12-22 08:47:36,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:36,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510226617] [2020-12-22 08:47:36,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:37,013 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 08:47:37,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510226617] [2020-12-22 08:47:37,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:37,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:37,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091714142] [2020-12-22 08:47:37,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:37,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:37,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:37,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:37,016 INFO L87 Difference]: Start difference. First operand 925 states and 1275 transitions. Second operand 9 states. [2020-12-22 08:47:39,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:39,207 INFO L93 Difference]: Finished difference Result 3100 states and 4507 transitions. [2020-12-22 08:47:39,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:47:39,208 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:47:39,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:39,211 INFO L225 Difference]: With dead ends: 3100 [2020-12-22 08:47:39,211 INFO L226 Difference]: Without dead ends: 2597 [2020-12-22 08:47:39,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:47:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-12-22 08:47:39,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 925. [2020-12-22 08:47:39,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:47:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1274 transitions. [2020-12-22 08:47:39,484 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1274 transitions. Word has length 80 [2020-12-22 08:47:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:39,484 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1274 transitions. [2020-12-22 08:47:39,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:39,484 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1274 transitions. [2020-12-22 08:47:39,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:39,485 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:39,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:39,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:47:39,486 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:39,487 INFO L82 PathProgramCache]: Analyzing trace with hash 601853245, now seen corresponding path program 1 times [2020-12-22 08:47:39,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:39,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390503431] [2020-12-22 08:47:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:39,632 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 08:47:39,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390503431] [2020-12-22 08:47:39,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:39,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:39,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117737892] [2020-12-22 08:47:39,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:39,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:39,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:39,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:39,635 INFO L87 Difference]: Start difference. First operand 925 states and 1274 transitions. Second operand 9 states. [2020-12-22 08:47:42,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:42,356 INFO L93 Difference]: Finished difference Result 3432 states and 5048 transitions. [2020-12-22 08:47:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:47:42,357 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:47:42,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:42,359 INFO L225 Difference]: With dead ends: 3432 [2020-12-22 08:47:42,359 INFO L226 Difference]: Without dead ends: 2941 [2020-12-22 08:47:42,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:47:42,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2020-12-22 08:47:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 925. [2020-12-22 08:47:42,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:47:42,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1273 transitions. [2020-12-22 08:47:42,601 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1273 transitions. Word has length 80 [2020-12-22 08:47:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:42,602 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1273 transitions. [2020-12-22 08:47:42,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:42,602 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1273 transitions. [2020-12-22 08:47:42,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:42,603 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:42,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:42,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:47:42,604 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:42,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:42,604 INFO L82 PathProgramCache]: Analyzing trace with hash -953833721, now seen corresponding path program 1 times [2020-12-22 08:47:42,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:42,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860777428] [2020-12-22 08:47:42,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:42,837 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 08:47:42,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860777428] [2020-12-22 08:47:42,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:42,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:47:42,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24180528] [2020-12-22 08:47:42,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:47:42,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:42,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:47:42,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:47:42,840 INFO L87 Difference]: Start difference. First operand 925 states and 1273 transitions. Second operand 11 states. [2020-12-22 08:47:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:49,410 INFO L93 Difference]: Finished difference Result 6961 states and 10251 transitions. [2020-12-22 08:47:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:47:49,410 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-12-22 08:47:49,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:49,417 INFO L225 Difference]: With dead ends: 6961 [2020-12-22 08:47:49,417 INFO L226 Difference]: Without dead ends: 6408 [2020-12-22 08:47:49,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:47:49,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6408 states. [2020-12-22 08:47:49,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6408 to 929. [2020-12-22 08:47:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:47:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1277 transitions. [2020-12-22 08:47:49,698 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1277 transitions. Word has length 80 [2020-12-22 08:47:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:49,698 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1277 transitions. [2020-12-22 08:47:49,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:47:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1277 transitions. [2020-12-22 08:47:49,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:49,699 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:49,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:49,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:47:49,700 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:49,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:49,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1702835234, now seen corresponding path program 1 times [2020-12-22 08:47:49,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:49,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824171052] [2020-12-22 08:47:49,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:49,861 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 08:47:49,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824171052] [2020-12-22 08:47:49,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:49,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:49,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721257241] [2020-12-22 08:47:49,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:49,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:49,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:49,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:49,864 INFO L87 Difference]: Start difference. First operand 929 states and 1277 transitions. Second operand 9 states. [2020-12-22 08:47:52,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:52,571 INFO L93 Difference]: Finished difference Result 2950 states and 4309 transitions. [2020-12-22 08:47:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:47:52,572 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:47:52,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:52,575 INFO L225 Difference]: With dead ends: 2950 [2020-12-22 08:47:52,575 INFO L226 Difference]: Without dead ends: 2945 [2020-12-22 08:47:52,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:47:52,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2020-12-22 08:47:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 929. [2020-12-22 08:47:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:47:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1276 transitions. [2020-12-22 08:47:52,842 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1276 transitions. Word has length 80 [2020-12-22 08:47:52,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:52,843 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1276 transitions. [2020-12-22 08:47:52,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:52,843 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1276 transitions. [2020-12-22 08:47:52,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:47:52,844 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:52,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:52,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:47:52,844 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:47:52,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:52,844 INFO L82 PathProgramCache]: Analyzing trace with hash 209361868, now seen corresponding path program 1 times [2020-12-22 08:47:52,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:52,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685092770] [2020-12-22 08:47:52,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:53,072 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 08:47:53,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685092770] [2020-12-22 08:47:53,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:53,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:47:53,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417349631] [2020-12-22 08:47:53,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:47:53,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:53,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:47:53,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:47:53,075 INFO L87 Difference]: Start difference. First operand 929 states and 1276 transitions. Second operand 11 states. [2020-12-22 08:48:00,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:00,397 INFO L93 Difference]: Finished difference Result 6859 states and 10051 transitions. [2020-12-22 08:48:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:48:00,398 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-12-22 08:48:00,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:00,406 INFO L225 Difference]: With dead ends: 6859 [2020-12-22 08:48:00,407 INFO L226 Difference]: Without dead ends: 6842 [2020-12-22 08:48:00,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:48:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6842 states. [2020-12-22 08:48:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6842 to 933. [2020-12-22 08:48:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1280 transitions. [2020-12-22 08:48:00,750 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1280 transitions. Word has length 80 [2020-12-22 08:48:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:00,750 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1280 transitions. [2020-12-22 08:48:00,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:48:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1280 transitions. [2020-12-22 08:48:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:48:00,751 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:00,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:00,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:48:00,752 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:00,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:00,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1191963760, now seen corresponding path program 1 times [2020-12-22 08:48:00,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:00,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978688105] [2020-12-22 08:48:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:00,933 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 08:48:00,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978688105] [2020-12-22 08:48:00,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:00,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:00,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669797120] [2020-12-22 08:48:00,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:00,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:00,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:00,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:00,940 INFO L87 Difference]: Start difference. First operand 933 states and 1280 transitions. Second operand 9 states. [2020-12-22 08:48:04,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:04,102 INFO L93 Difference]: Finished difference Result 3437 states and 5051 transitions. [2020-12-22 08:48:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:48:04,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:48:04,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:04,106 INFO L225 Difference]: With dead ends: 3437 [2020-12-22 08:48:04,106 INFO L226 Difference]: Without dead ends: 2949 [2020-12-22 08:48:04,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:48:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2020-12-22 08:48:04,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 933. [2020-12-22 08:48:04,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:04,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1279 transitions. [2020-12-22 08:48:04,393 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1279 transitions. Word has length 80 [2020-12-22 08:48:04,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:04,394 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1279 transitions. [2020-12-22 08:48:04,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:04,394 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1279 transitions. [2020-12-22 08:48:04,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:48:04,395 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:04,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:04,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:48:04,396 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:04,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:04,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1836995487, now seen corresponding path program 1 times [2020-12-22 08:48:04,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:04,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5882012] [2020-12-22 08:48:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:04,694 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 08:48:04,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5882012] [2020-12-22 08:48:04,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:04,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:48:04,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429026467] [2020-12-22 08:48:04,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:48:04,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:04,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:48:04,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:48:04,698 INFO L87 Difference]: Start difference. First operand 933 states and 1279 transitions. Second operand 12 states. [2020-12-22 08:48:09,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:09,977 INFO L93 Difference]: Finished difference Result 3231 states and 4649 transitions. [2020-12-22 08:48:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:48:09,977 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-12-22 08:48:09,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:09,981 INFO L225 Difference]: With dead ends: 3231 [2020-12-22 08:48:09,981 INFO L226 Difference]: Without dead ends: 3226 [2020-12-22 08:48:09,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:48:09,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2020-12-22 08:48:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 933. [2020-12-22 08:48:10,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:10,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1278 transitions. [2020-12-22 08:48:10,324 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1278 transitions. Word has length 80 [2020-12-22 08:48:10,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:10,325 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1278 transitions. [2020-12-22 08:48:10,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:48:10,325 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1278 transitions. [2020-12-22 08:48:10,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:48:10,326 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:10,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:10,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:48:10,326 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:10,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:10,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1478263256, now seen corresponding path program 1 times [2020-12-22 08:48:10,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:10,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995402544] [2020-12-22 08:48:10,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:10,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:10,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995402544] [2020-12-22 08:48:10,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:10,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:10,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380263697] [2020-12-22 08:48:10,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:10,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:10,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:10,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:10,498 INFO L87 Difference]: Start difference. First operand 933 states and 1278 transitions. Second operand 9 states. [2020-12-22 08:48:13,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:13,667 INFO L93 Difference]: Finished difference Result 3440 states and 5052 transitions. [2020-12-22 08:48:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:48:13,668 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:48:13,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:13,670 INFO L225 Difference]: With dead ends: 3440 [2020-12-22 08:48:13,670 INFO L226 Difference]: Without dead ends: 2949 [2020-12-22 08:48:13,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:48:13,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2020-12-22 08:48:13,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 933. [2020-12-22 08:48:13,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:13,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1277 transitions. [2020-12-22 08:48:13,963 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1277 transitions. Word has length 81 [2020-12-22 08:48:13,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:13,963 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1277 transitions. [2020-12-22 08:48:13,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:13,963 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1277 transitions. [2020-12-22 08:48:13,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:48:13,964 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:13,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:13,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:48:13,965 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:13,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:13,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1917206007, now seen corresponding path program 1 times [2020-12-22 08:48:13,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:13,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450649468] [2020-12-22 08:48:13,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:14,127 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 08:48:14,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450649468] [2020-12-22 08:48:14,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:14,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:14,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855063936] [2020-12-22 08:48:14,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:14,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:14,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:14,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:14,130 INFO L87 Difference]: Start difference. First operand 933 states and 1277 transitions. Second operand 9 states. [2020-12-22 08:48:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:16,998 INFO L93 Difference]: Finished difference Result 3104 states and 4503 transitions. [2020-12-22 08:48:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:16,999 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:48:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:17,003 INFO L225 Difference]: With dead ends: 3104 [2020-12-22 08:48:17,003 INFO L226 Difference]: Without dead ends: 2601 [2020-12-22 08:48:17,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:48:17,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2020-12-22 08:48:17,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 929. [2020-12-22 08:48:17,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1272 transitions. [2020-12-22 08:48:17,320 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1272 transitions. Word has length 81 [2020-12-22 08:48:17,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:17,321 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1272 transitions. [2020-12-22 08:48:17,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:17,321 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1272 transitions. [2020-12-22 08:48:17,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:48:17,321 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:17,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:17,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:48:17,322 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:17,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:17,322 INFO L82 PathProgramCache]: Analyzing trace with hash -397757345, now seen corresponding path program 1 times [2020-12-22 08:48:17,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:17,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068437425] [2020-12-22 08:48:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:17,502 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 08:48:17,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068437425] [2020-12-22 08:48:17,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:17,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:17,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818747716] [2020-12-22 08:48:17,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:17,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:17,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:17,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:17,504 INFO L87 Difference]: Start difference. First operand 929 states and 1272 transitions. Second operand 9 states. [2020-12-22 08:48:20,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:20,691 INFO L93 Difference]: Finished difference Result 2950 states and 4304 transitions. [2020-12-22 08:48:20,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:48:20,692 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:48:20,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:20,695 INFO L225 Difference]: With dead ends: 2950 [2020-12-22 08:48:20,695 INFO L226 Difference]: Without dead ends: 2945 [2020-12-22 08:48:20,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:48:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2020-12-22 08:48:21,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 929. [2020-12-22 08:48:21,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1271 transitions. [2020-12-22 08:48:21,039 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1271 transitions. Word has length 81 [2020-12-22 08:48:21,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:21,039 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1271 transitions. [2020-12-22 08:48:21,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:21,040 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1271 transitions. [2020-12-22 08:48:21,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:48:21,040 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:21,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:21,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 08:48:21,041 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:21,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:21,041 INFO L82 PathProgramCache]: Analyzing trace with hash 500388118, now seen corresponding path program 1 times [2020-12-22 08:48:21,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:21,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972533857] [2020-12-22 08:48:21,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:21,227 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 08:48:21,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972533857] [2020-12-22 08:48:21,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:21,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:21,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166425184] [2020-12-22 08:48:21,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:21,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:21,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:21,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:21,232 INFO L87 Difference]: Start difference. First operand 929 states and 1271 transitions. Second operand 9 states. [2020-12-22 08:48:24,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:24,786 INFO L93 Difference]: Finished difference Result 3433 states and 5042 transitions. [2020-12-22 08:48:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:48:24,786 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:48:24,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:24,789 INFO L225 Difference]: With dead ends: 3433 [2020-12-22 08:48:24,790 INFO L226 Difference]: Without dead ends: 2945 [2020-12-22 08:48:24,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:48:24,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2020-12-22 08:48:25,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 929. [2020-12-22 08:48:25,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:25,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1270 transitions. [2020-12-22 08:48:25,115 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1270 transitions. Word has length 81 [2020-12-22 08:48:25,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:25,115 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1270 transitions. [2020-12-22 08:48:25,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:25,115 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1270 transitions. [2020-12-22 08:48:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:48:25,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:25,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:25,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 08:48:25,116 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:25,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:25,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1829127868, now seen corresponding path program 1 times [2020-12-22 08:48:25,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:25,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038751265] [2020-12-22 08:48:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:25,259 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 08:48:25,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038751265] [2020-12-22 08:48:25,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:25,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:25,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393255137] [2020-12-22 08:48:25,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:25,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:25,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:25,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:25,261 INFO L87 Difference]: Start difference. First operand 929 states and 1270 transitions. Second operand 9 states. [2020-12-22 08:48:28,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:28,375 INFO L93 Difference]: Finished difference Result 3186 states and 4604 transitions. [2020-12-22 08:48:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:28,376 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:48:28,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:28,378 INFO L225 Difference]: With dead ends: 3186 [2020-12-22 08:48:28,378 INFO L226 Difference]: Without dead ends: 2633 [2020-12-22 08:48:28,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2020-12-22 08:48:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 925. [2020-12-22 08:48:28,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:48:28,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1265 transitions. [2020-12-22 08:48:28,707 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1265 transitions. Word has length 81 [2020-12-22 08:48:28,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:28,708 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1265 transitions. [2020-12-22 08:48:28,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:28,708 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1265 transitions. [2020-12-22 08:48:28,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:48:28,709 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:28,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:28,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 08:48:28,709 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:28,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:28,709 INFO L82 PathProgramCache]: Analyzing trace with hash 846117342, now seen corresponding path program 1 times [2020-12-22 08:48:28,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:28,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232022222] [2020-12-22 08:48:28,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:28,886 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 08:48:28,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232022222] [2020-12-22 08:48:28,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:28,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:28,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617146917] [2020-12-22 08:48:28,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:28,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:28,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:28,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:28,888 INFO L87 Difference]: Start difference. First operand 925 states and 1265 transitions. Second operand 9 states. [2020-12-22 08:48:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:31,726 INFO L93 Difference]: Finished difference Result 1982 states and 2823 transitions. [2020-12-22 08:48:31,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:31,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:48:31,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:31,729 INFO L225 Difference]: With dead ends: 1982 [2020-12-22 08:48:31,729 INFO L226 Difference]: Without dead ends: 1977 [2020-12-22 08:48:31,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2020-12-22 08:48:32,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 925. [2020-12-22 08:48:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:48:32,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1264 transitions. [2020-12-22 08:48:32,054 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1264 transitions. Word has length 81 [2020-12-22 08:48:32,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:32,054 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1264 transitions. [2020-12-22 08:48:32,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:32,054 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1264 transitions. [2020-12-22 08:48:32,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:48:32,055 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:32,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:32,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 08:48:32,056 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:32,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:32,056 INFO L82 PathProgramCache]: Analyzing trace with hash -53380691, now seen corresponding path program 1 times [2020-12-22 08:48:32,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:32,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020169740] [2020-12-22 08:48:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:32,209 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 08:48:32,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020169740] [2020-12-22 08:48:32,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:32,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:32,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67188873] [2020-12-22 08:48:32,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:32,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:32,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:32,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:32,212 INFO L87 Difference]: Start difference. First operand 925 states and 1264 transitions. Second operand 9 states. [2020-12-22 08:48:35,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:35,485 INFO L93 Difference]: Finished difference Result 2614 states and 3751 transitions. [2020-12-22 08:48:35,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:35,486 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:48:35,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:35,488 INFO L225 Difference]: With dead ends: 2614 [2020-12-22 08:48:35,489 INFO L226 Difference]: Without dead ends: 2597 [2020-12-22 08:48:35,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:48:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-12-22 08:48:35,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 921. [2020-12-22 08:48:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:48:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1259 transitions. [2020-12-22 08:48:35,833 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1259 transitions. Word has length 81 [2020-12-22 08:48:35,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:35,833 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1259 transitions. [2020-12-22 08:48:35,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1259 transitions. [2020-12-22 08:48:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:48:35,834 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:35,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:35,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-22 08:48:35,834 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:48:35,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:35,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1125287833, now seen corresponding path program 1 times [2020-12-22 08:48:35,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:35,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188764486] [2020-12-22 08:48:35,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:37,947 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 08:48:37,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188764486] [2020-12-22 08:48:37,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:37,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2020-12-22 08:48:37,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126230089] [2020-12-22 08:48:37,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-22 08:48:37,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:37,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-22 08:48:37,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:48:37,950 INFO L87 Difference]: Start difference. First operand 921 states and 1259 transitions. Second operand 30 states. [2020-12-22 08:48:38,666 WARN L197 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 137 [2020-12-22 08:48:39,111 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-12-22 08:48:39,302 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-12-22 08:48:39,556 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-22 08:48:39,816 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:48:40,077 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-22 08:48:40,391 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-22 08:48:40,680 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-22 08:48:41,323 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-12-22 08:48:41,783 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2020-12-22 08:48:42,319 WARN L197 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-22 08:48:42,923 WARN L197 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-12-22 08:48:43,298 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-12-22 08:48:43,650 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-12-22 08:48:44,009 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-22 08:48:44,651 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-12-22 08:48:45,012 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-12-22 08:48:45,291 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:48:45,699 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:48:46,043 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-22 08:48:46,356 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-12-22 08:48:46,722 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-12-22 08:48:47,215 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2020-12-22 08:48:47,532 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-22 08:48:57,377 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-22 08:48:58,810 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-12-22 08:49:01,374 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-12-22 08:49:03,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:49:03,814 INFO L93 Difference]: Finished difference Result 6097 states and 9024 transitions. [2020-12-22 08:49:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-12-22 08:49:03,816 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 82 [2020-12-22 08:49:03,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:49:03,821 INFO L225 Difference]: With dead ends: 6097 [2020-12-22 08:49:03,822 INFO L226 Difference]: Without dead ends: 5608 [2020-12-22 08:49:03,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=648, Invalid=3258, Unknown=0, NotChecked=0, Total=3906 [2020-12-22 08:49:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5608 states. [2020-12-22 08:49:04,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5608 to 935. [2020-12-22 08:49:04,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 935 states. [2020-12-22 08:49:04,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1277 transitions. [2020-12-22 08:49:04,260 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1277 transitions. Word has length 82 [2020-12-22 08:49:04,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:49:04,260 INFO L481 AbstractCegarLoop]: Abstraction has 935 states and 1277 transitions. [2020-12-22 08:49:04,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-22 08:49:04,260 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1277 transitions. [2020-12-22 08:49:04,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:49:04,261 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:49:04,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:49:04,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 08:49:04,262 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:49:04,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:49:04,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1735705855, now seen corresponding path program 1 times [2020-12-22 08:49:04,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:49:04,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363928201] [2020-12-22 08:49:04,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:49:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:49:06,907 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 08:49:06,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363928201] [2020-12-22 08:49:06,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:49:06,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:49:06,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747767659] [2020-12-22 08:49:06,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:49:06,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:49:06,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:49:06,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:49:06,909 INFO L87 Difference]: Start difference. First operand 935 states and 1277 transitions. Second operand 29 states. [2020-12-22 08:49:07,876 WARN L197 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2020-12-22 08:49:08,218 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2020-12-22 08:49:08,448 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-12-22 08:49:08,677 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2020-12-22 08:49:08,995 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-22 08:49:09,316 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-22 08:49:09,645 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:49:10,068 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-12-22 08:49:10,479 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-22 08:49:11,407 WARN L197 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-22 08:49:12,005 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2020-12-22 08:49:12,700 WARN L197 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-12-22 08:49:13,552 WARN L197 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-12-22 08:49:14,098 WARN L197 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-22 08:49:14,657 WARN L197 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-22 08:49:15,205 WARN L197 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-12-22 08:49:16,190 WARN L197 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-12-22 08:49:16,713 WARN L197 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-12-22 08:49:17,115 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:49:17,704 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:49:18,180 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-22 08:49:18,644 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-12-22 08:49:19,174 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-12-22 08:49:20,007 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-22 08:49:20,582 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-12-22 08:49:22,321 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-22 08:49:37,519 WARN L197 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-22 08:49:43,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:49:43,029 INFO L93 Difference]: Finished difference Result 6186 states and 9124 transitions. [2020-12-22 08:49:43,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-12-22 08:49:43,032 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 82 [2020-12-22 08:49:43,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:49:43,040 INFO L225 Difference]: With dead ends: 6186 [2020-12-22 08:49:43,040 INFO L226 Difference]: Without dead ends: 5693 [2020-12-22 08:49:43,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=633, Invalid=2907, Unknown=0, NotChecked=0, Total=3540 [2020-12-22 08:49:43,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2020-12-22 08:49:43,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 941. [2020-12-22 08:49:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2020-12-22 08:49:43,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1283 transitions. [2020-12-22 08:49:43,578 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1283 transitions. Word has length 82 [2020-12-22 08:49:43,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:49:43,579 INFO L481 AbstractCegarLoop]: Abstraction has 941 states and 1283 transitions. [2020-12-22 08:49:43,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:49:43,579 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1283 transitions. [2020-12-22 08:49:43,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:49:43,580 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:49:43,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:49:43,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-22 08:49:43,580 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:49:43,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:49:43,580 INFO L82 PathProgramCache]: Analyzing trace with hash -941970822, now seen corresponding path program 1 times [2020-12-22 08:49:43,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:49:43,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587104150] [2020-12-22 08:49:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:49:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:49:46,643 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 08:49:46,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587104150] [2020-12-22 08:49:46,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:49:46,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:49:46,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761761868] [2020-12-22 08:49:46,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:49:46,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:49:46,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:49:46,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:49:46,646 INFO L87 Difference]: Start difference. First operand 941 states and 1283 transitions. Second operand 29 states. [2020-12-22 08:49:47,881 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 140 DAG size of output: 131 [2020-12-22 08:49:48,392 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-12-22 08:49:48,644 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-12-22 08:49:48,919 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-22 08:49:49,381 WARN L197 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-22 08:49:49,852 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-22 08:49:50,429 WARN L197 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-22 08:49:50,959 WARN L197 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:49:52,083 WARN L197 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-12-22 08:49:52,592 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-12-22 08:49:53,162 WARN L197 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2020-12-22 08:49:53,836 WARN L197 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-12-22 08:49:54,391 WARN L197 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-12-22 08:49:54,964 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-12-22 08:49:55,532 WARN L197 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-12-22 08:49:56,552 WARN L197 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-12-22 08:49:57,094 WARN L197 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-12-22 08:49:59,970 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-22 08:50:02,314 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-22 08:50:04,525 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-22 08:50:05,027 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-12-22 08:50:13,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:13,720 INFO L93 Difference]: Finished difference Result 3707 states and 5359 transitions. [2020-12-22 08:50:13,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-22 08:50:13,722 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 82 [2020-12-22 08:50:13,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:13,726 INFO L225 Difference]: With dead ends: 3707 [2020-12-22 08:50:13,726 INFO L226 Difference]: Without dead ends: 3217 [2020-12-22 08:50:13,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=590, Invalid=2602, Unknown=0, NotChecked=0, Total=3192 [2020-12-22 08:50:13,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2020-12-22 08:50:14,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 952. [2020-12-22 08:50:14,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2020-12-22 08:50:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1297 transitions. [2020-12-22 08:50:14,176 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1297 transitions. Word has length 82 [2020-12-22 08:50:14,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:14,176 INFO L481 AbstractCegarLoop]: Abstraction has 952 states and 1297 transitions. [2020-12-22 08:50:14,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:50:14,177 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1297 transitions. [2020-12-22 08:50:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:50:14,178 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:14,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:50:14,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-22 08:50:14,178 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 08:50:14,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:14,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1572479326, now seen corresponding path program 1 times [2020-12-22 08:50:14,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:14,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648490349] [2020-12-22 08:50:14,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:16,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:16,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648490349] [2020-12-22 08:50:16,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:16,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:50:16,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736697984] [2020-12-22 08:50:16,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:50:16,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:16,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:50:16,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=721, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:50:16,636 INFO L87 Difference]: Start difference. First operand 952 states and 1297 transitions. Second operand 29 states. [2020-12-22 08:50:17,674 WARN L197 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 124 [2020-12-22 08:50:18,070 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2020-12-22 08:50:18,330 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-12-22 08:50:18,656 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-12-22 08:50:18,996 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-22 08:50:19,324 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-22 08:50:19,716 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-12-22 08:50:20,157 WARN L197 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45