/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/pals_lcr.7.ufo.BOUNDED-14.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 07:37:01,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 07:37:01,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 07:37:01,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 07:37:01,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 07:37:01,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 07:37:01,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 07:37:01,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 07:37:01,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 07:37:02,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 07:37:02,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 07:37:02,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 07:37:02,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 07:37:02,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 07:37:02,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 07:37:02,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 07:37:02,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 07:37:02,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 07:37:02,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 07:37:02,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 07:37:02,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 07:37:02,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 07:37:02,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 07:37:02,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 07:37:02,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 07:37:02,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 07:37:02,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 07:37:02,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 07:37:02,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 07:37:02,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 07:37:02,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 07:37:02,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 07:37:02,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 07:37:02,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 07:37:02,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 07:37:02,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 07:37:02,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 07:37:02,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 07:37:02,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 07:37:02,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 07:37:02,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 07:37:02,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 07:37:02,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 07:37:02,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 07:37:02,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 07:37:02,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 07:37:02,102 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 07:37:02,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 07:37:02,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 07:37:02,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 07:37:02,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 07:37:02,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 07:37:02,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 07:37:02,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 07:37:02,104 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 07:37:02,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 07:37:02,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 07:37:02,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 07:37:02,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 07:37:02,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 07:37:02,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 07:37:02,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 07:37:02,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 07:37:02,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 07:37:02,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 07:37:02,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 07:37:02,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 07:37:02,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 07:37:02,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 07:37:02,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 07:37:02,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 07:37:02,522 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 07:37:02,522 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 07:37:02,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2020-12-22 07:37:02,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ffcc1f5/7db54588b90447df8f889685bd141678/FLAG1f84f3fed [2020-12-22 07:37:03,311 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 07:37:03,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2020-12-22 07:37:03,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ffcc1f5/7db54588b90447df8f889685bd141678/FLAG1f84f3fed [2020-12-22 07:37:03,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ffcc1f5/7db54588b90447df8f889685bd141678 [2020-12-22 07:37:03,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 07:37:03,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 07:37:03,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 07:37:03,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 07:37:03,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 07:37:03,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:37:03" (1/1) ... [2020-12-22 07:37:03,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2618aea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:03, skipping insertion in model container [2020-12-22 07:37:03,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:37:03" (1/1) ... [2020-12-22 07:37:03,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 07:37:03,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 07:37:04,013 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/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2020-12-22 07:37:04,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:37:04,027 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 07:37:04,096 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/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2020-12-22 07:37:04,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:37:04,120 INFO L208 MainTranslator]: Completed translation [2020-12-22 07:37:04,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04 WrapperNode [2020-12-22 07:37:04,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 07:37:04,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 07:37:04,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 07:37:04,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 07:37:04,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (1/1) ... [2020-12-22 07:37:04,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (1/1) ... [2020-12-22 07:37:04,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 07:37:04,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 07:37:04,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 07:37:04,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 07:37:04,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (1/1) ... [2020-12-22 07:37:04,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (1/1) ... [2020-12-22 07:37:04,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (1/1) ... [2020-12-22 07:37:04,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (1/1) ... [2020-12-22 07:37:04,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (1/1) ... [2020-12-22 07:37:04,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (1/1) ... [2020-12-22 07:37:04,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (1/1) ... [2020-12-22 07:37:04,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 07:37:04,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 07:37:04,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 07:37:04,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 07:37:04,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (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 07:37:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 07:37:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 07:37:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 07:37:04,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 07:37:05,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 07:37:05,271 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2020-12-22 07:37:05,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:37:05 BoogieIcfgContainer [2020-12-22 07:37:05,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 07:37:05,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 07:37:05,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 07:37:05,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 07:37:05,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:37:03" (1/3) ... [2020-12-22 07:37:05,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4875b19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:37:05, skipping insertion in model container [2020-12-22 07:37:05,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:37:04" (2/3) ... [2020-12-22 07:37:05,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4875b19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:37:05, skipping insertion in model container [2020-12-22 07:37:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:37:05" (3/3) ... [2020-12-22 07:37:05,285 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c [2020-12-22 07:37:05,294 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 07:37:05,300 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 07:37:05,323 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 07:37:05,350 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 07:37:05,350 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 07:37:05,351 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 07:37:05,351 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 07:37:05,351 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 07:37:05,351 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 07:37:05,351 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 07:37:05,351 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 07:37:05,371 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-12-22 07:37:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 07:37:05,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:05,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:05,382 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:05,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:05,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1781508813, now seen corresponding path program 1 times [2020-12-22 07:37:05,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:05,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782292670] [2020-12-22 07:37:05,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:05,694 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 07:37:05,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782292670] [2020-12-22 07:37:05,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:05,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 07:37:05,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072192540] [2020-12-22 07:37:05,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 07:37:05,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:05,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 07:37:05,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 07:37:05,719 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2020-12-22 07:37:05,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:05,752 INFO L93 Difference]: Finished difference Result 201 states and 336 transitions. [2020-12-22 07:37:05,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 07:37:05,754 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 41 [2020-12-22 07:37:05,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:05,766 INFO L225 Difference]: With dead ends: 201 [2020-12-22 07:37:05,767 INFO L226 Difference]: Without dead ends: 124 [2020-12-22 07:37:05,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 07:37:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-12-22 07:37:05,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-12-22 07:37:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-22 07:37:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 214 transitions. [2020-12-22 07:37:05,821 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 214 transitions. Word has length 41 [2020-12-22 07:37:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:05,821 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 214 transitions. [2020-12-22 07:37:05,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 07:37:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 214 transitions. [2020-12-22 07:37:05,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 07:37:05,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:05,824 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] [2020-12-22 07:37:05,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 07:37:05,825 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:05,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:05,826 INFO L82 PathProgramCache]: Analyzing trace with hash 2119091697, now seen corresponding path program 1 times [2020-12-22 07:37:05,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:05,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11057741] [2020-12-22 07:37:05,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:05,943 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 07:37:05,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11057741] [2020-12-22 07:37:05,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:05,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 07:37:05,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200309739] [2020-12-22 07:37:05,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 07:37:05,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:05,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 07:37:05,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:37:05,948 INFO L87 Difference]: Start difference. First operand 124 states and 214 transitions. Second operand 5 states. [2020-12-22 07:37:06,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:06,111 INFO L93 Difference]: Finished difference Result 196 states and 326 transitions. [2020-12-22 07:37:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:37:06,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-22 07:37:06,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:06,117 INFO L225 Difference]: With dead ends: 196 [2020-12-22 07:37:06,117 INFO L226 Difference]: Without dead ends: 124 [2020-12-22 07:37:06,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 07:37:06,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-12-22 07:37:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-12-22 07:37:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-22 07:37:06,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 164 transitions. [2020-12-22 07:37:06,146 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 164 transitions. Word has length 41 [2020-12-22 07:37:06,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:06,147 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 164 transitions. [2020-12-22 07:37:06,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 07:37:06,147 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 164 transitions. [2020-12-22 07:37:06,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:06,158 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:06,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:06,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 07:37:06,159 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:06,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:06,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1557003755, now seen corresponding path program 1 times [2020-12-22 07:37:06,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:06,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272014719] [2020-12-22 07:37:06,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:06,408 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 07:37:06,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272014719] [2020-12-22 07:37:06,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:06,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:37:06,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550644597] [2020-12-22 07:37:06,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:37:06,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:06,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:37:06,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:06,412 INFO L87 Difference]: Start difference. First operand 124 states and 164 transitions. Second operand 3 states. [2020-12-22 07:37:06,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:06,448 INFO L93 Difference]: Finished difference Result 254 states and 370 transitions. [2020-12-22 07:37:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:37:06,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 07:37:06,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:06,452 INFO L225 Difference]: With dead ends: 254 [2020-12-22 07:37:06,452 INFO L226 Difference]: Without dead ends: 186 [2020-12-22 07:37:06,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:06,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-12-22 07:37:06,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2020-12-22 07:37:06,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-12-22 07:37:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 260 transitions. [2020-12-22 07:37:06,473 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 260 transitions. Word has length 90 [2020-12-22 07:37:06,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:06,474 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 260 transitions. [2020-12-22 07:37:06,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:37:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 260 transitions. [2020-12-22 07:37:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:06,478 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:06,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:06,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 07:37:06,478 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:06,479 INFO L82 PathProgramCache]: Analyzing trace with hash -309494901, now seen corresponding path program 1 times [2020-12-22 07:37:06,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:06,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052594765] [2020-12-22 07:37:06,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:06,654 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 07:37:06,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052594765] [2020-12-22 07:37:06,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:06,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:37:06,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811380886] [2020-12-22 07:37:06,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:37:06,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:06,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:37:06,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:06,663 INFO L87 Difference]: Start difference. First operand 184 states and 260 transitions. Second operand 3 states. [2020-12-22 07:37:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:06,703 INFO L93 Difference]: Finished difference Result 428 states and 648 transitions. [2020-12-22 07:37:06,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:37:06,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 07:37:06,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:06,708 INFO L225 Difference]: With dead ends: 428 [2020-12-22 07:37:06,708 INFO L226 Difference]: Without dead ends: 300 [2020-12-22 07:37:06,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:06,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-12-22 07:37:06,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 298. [2020-12-22 07:37:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-22 07:37:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 441 transitions. [2020-12-22 07:37:06,738 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 441 transitions. Word has length 90 [2020-12-22 07:37:06,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:06,739 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 441 transitions. [2020-12-22 07:37:06,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:37:06,739 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 441 transitions. [2020-12-22 07:37:06,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:06,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:06,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:06,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 07:37:06,743 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:06,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:06,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1050927103, now seen corresponding path program 1 times [2020-12-22 07:37:06,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:06,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241834761] [2020-12-22 07:37:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:06,883 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 07:37:06,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241834761] [2020-12-22 07:37:06,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:06,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:37:06,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262055283] [2020-12-22 07:37:06,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:37:06,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:06,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:37:06,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:06,889 INFO L87 Difference]: Start difference. First operand 298 states and 441 transitions. Second operand 3 states. [2020-12-22 07:37:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:06,946 INFO L93 Difference]: Finished difference Result 758 states and 1171 transitions. [2020-12-22 07:37:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:37:06,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 07:37:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:06,951 INFO L225 Difference]: With dead ends: 758 [2020-12-22 07:37:06,951 INFO L226 Difference]: Without dead ends: 516 [2020-12-22 07:37:06,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-12-22 07:37:06,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 514. [2020-12-22 07:37:06,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-12-22 07:37:07,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 781 transitions. [2020-12-22 07:37:07,003 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 781 transitions. Word has length 90 [2020-12-22 07:37:07,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:07,004 INFO L481 AbstractCegarLoop]: Abstraction has 514 states and 781 transitions. [2020-12-22 07:37:07,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:37:07,004 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 781 transitions. [2020-12-22 07:37:07,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:07,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:07,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:07,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 07:37:07,007 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:07,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1796509833, now seen corresponding path program 1 times [2020-12-22 07:37:07,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:07,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702960709] [2020-12-22 07:37:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:07,122 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 07:37:07,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702960709] [2020-12-22 07:37:07,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:07,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:37:07,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456617150] [2020-12-22 07:37:07,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:37:07,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:07,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:37:07,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:07,127 INFO L87 Difference]: Start difference. First operand 514 states and 781 transitions. Second operand 3 states. [2020-12-22 07:37:07,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:07,203 INFO L93 Difference]: Finished difference Result 1382 states and 2151 transitions. [2020-12-22 07:37:07,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:37:07,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 07:37:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:07,213 INFO L225 Difference]: With dead ends: 1382 [2020-12-22 07:37:07,214 INFO L226 Difference]: Without dead ends: 924 [2020-12-22 07:37:07,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:07,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-12-22 07:37:07,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 922. [2020-12-22 07:37:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2020-12-22 07:37:07,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1417 transitions. [2020-12-22 07:37:07,265 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1417 transitions. Word has length 90 [2020-12-22 07:37:07,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:07,266 INFO L481 AbstractCegarLoop]: Abstraction has 922 states and 1417 transitions. [2020-12-22 07:37:07,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:37:07,266 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1417 transitions. [2020-12-22 07:37:07,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:07,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:07,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:07,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 07:37:07,277 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:07,279 INFO L82 PathProgramCache]: Analyzing trace with hash -259221845, now seen corresponding path program 1 times [2020-12-22 07:37:07,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:07,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162732310] [2020-12-22 07:37:07,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 07:37:07,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162732310] [2020-12-22 07:37:07,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:07,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:37:07,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050494611] [2020-12-22 07:37:07,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:37:07,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:07,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:37:07,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:07,469 INFO L87 Difference]: Start difference. First operand 922 states and 1417 transitions. Second operand 3 states. [2020-12-22 07:37:07,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:07,541 INFO L93 Difference]: Finished difference Result 2558 states and 3979 transitions. [2020-12-22 07:37:07,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:37:07,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 07:37:07,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:07,551 INFO L225 Difference]: With dead ends: 2558 [2020-12-22 07:37:07,552 INFO L226 Difference]: Without dead ends: 1692 [2020-12-22 07:37:07,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:07,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2020-12-22 07:37:07,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1690. [2020-12-22 07:37:07,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1690 states. [2020-12-22 07:37:07,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2601 transitions. [2020-12-22 07:37:07,633 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2601 transitions. Word has length 90 [2020-12-22 07:37:07,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:07,633 INFO L481 AbstractCegarLoop]: Abstraction has 1690 states and 2601 transitions. [2020-12-22 07:37:07,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:37:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2601 transitions. [2020-12-22 07:37:07,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:07,635 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:07,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:07,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 07:37:07,636 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:07,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:07,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1420392415, now seen corresponding path program 1 times [2020-12-22 07:37:07,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:07,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213063681] [2020-12-22 07:37:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:07,730 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 07:37:07,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213063681] [2020-12-22 07:37:07,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:07,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:37:07,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483674947] [2020-12-22 07:37:07,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:37:07,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:07,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:37:07,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:07,733 INFO L87 Difference]: Start difference. First operand 1690 states and 2601 transitions. Second operand 3 states. [2020-12-22 07:37:07,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:07,867 INFO L93 Difference]: Finished difference Result 4766 states and 7371 transitions. [2020-12-22 07:37:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:37:07,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 07:37:07,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:07,886 INFO L225 Difference]: With dead ends: 4766 [2020-12-22 07:37:07,886 INFO L226 Difference]: Without dead ends: 3132 [2020-12-22 07:37:07,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:07,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2020-12-22 07:37:08,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3130. [2020-12-22 07:37:08,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3130 states. [2020-12-22 07:37:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4793 transitions. [2020-12-22 07:37:08,063 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4793 transitions. Word has length 90 [2020-12-22 07:37:08,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:08,064 INFO L481 AbstractCegarLoop]: Abstraction has 3130 states and 4793 transitions. [2020-12-22 07:37:08,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:37:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4793 transitions. [2020-12-22 07:37:08,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:08,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:08,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:08,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 07:37:08,066 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:08,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:08,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1758185557, now seen corresponding path program 1 times [2020-12-22 07:37:08,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:08,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258648338] [2020-12-22 07:37:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:08,176 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 07:37:08,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258648338] [2020-12-22 07:37:08,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:08,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:37:08,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141861246] [2020-12-22 07:37:08,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:37:08,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:08,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:37:08,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:08,189 INFO L87 Difference]: Start difference. First operand 3130 states and 4793 transitions. Second operand 3 states. [2020-12-22 07:37:08,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:08,421 INFO L93 Difference]: Finished difference Result 8894 states and 13627 transitions. [2020-12-22 07:37:08,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:37:08,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 07:37:08,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:08,452 INFO L225 Difference]: With dead ends: 8894 [2020-12-22 07:37:08,452 INFO L226 Difference]: Without dead ends: 5820 [2020-12-22 07:37:08,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:08,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5820 states. [2020-12-22 07:37:08,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5820 to 5818. [2020-12-22 07:37:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5818 states. [2020-12-22 07:37:08,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8825 transitions. [2020-12-22 07:37:08,774 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8825 transitions. Word has length 90 [2020-12-22 07:37:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:08,774 INFO L481 AbstractCegarLoop]: Abstraction has 5818 states and 8825 transitions. [2020-12-22 07:37:08,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:37:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8825 transitions. [2020-12-22 07:37:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:08,777 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:08,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:08,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 07:37:08,778 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:08,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:08,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1318796341, now seen corresponding path program 1 times [2020-12-22 07:37:08,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:08,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513520328] [2020-12-22 07:37:08,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:08,920 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 07:37:08,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513520328] [2020-12-22 07:37:08,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:08,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 07:37:08,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22882746] [2020-12-22 07:37:08,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 07:37:08,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:08,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 07:37:08,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:37:08,928 INFO L87 Difference]: Start difference. First operand 5818 states and 8825 transitions. Second operand 6 states. [2020-12-22 07:37:09,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:09,454 INFO L93 Difference]: Finished difference Result 11580 states and 17594 transitions. [2020-12-22 07:37:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 07:37:09,455 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-12-22 07:37:09,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:09,486 INFO L225 Difference]: With dead ends: 11580 [2020-12-22 07:37:09,486 INFO L226 Difference]: Without dead ends: 5818 [2020-12-22 07:37:09,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:37:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2020-12-22 07:37:09,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 5818. [2020-12-22 07:37:09,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5818 states. [2020-12-22 07:37:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8761 transitions. [2020-12-22 07:37:09,863 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8761 transitions. Word has length 90 [2020-12-22 07:37:09,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:09,863 INFO L481 AbstractCegarLoop]: Abstraction has 5818 states and 8761 transitions. [2020-12-22 07:37:09,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 07:37:09,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8761 transitions. [2020-12-22 07:37:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:09,864 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:09,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:09,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 07:37:09,865 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:09,865 INFO L82 PathProgramCache]: Analyzing trace with hash -297727987, now seen corresponding path program 1 times [2020-12-22 07:37:09,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:09,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922449591] [2020-12-22 07:37:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:09,973 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 07:37:09,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922449591] [2020-12-22 07:37:09,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:09,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 07:37:09,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203824562] [2020-12-22 07:37:09,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 07:37:09,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:09,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 07:37:09,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:37:09,977 INFO L87 Difference]: Start difference. First operand 5818 states and 8761 transitions. Second operand 6 states. [2020-12-22 07:37:10,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:10,445 INFO L93 Difference]: Finished difference Result 11580 states and 17466 transitions. [2020-12-22 07:37:10,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 07:37:10,445 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-12-22 07:37:10,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:10,495 INFO L225 Difference]: With dead ends: 11580 [2020-12-22 07:37:10,495 INFO L226 Difference]: Without dead ends: 5818 [2020-12-22 07:37:10,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:37:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2020-12-22 07:37:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 5818. [2020-12-22 07:37:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5818 states. [2020-12-22 07:37:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8697 transitions. [2020-12-22 07:37:10,803 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8697 transitions. Word has length 90 [2020-12-22 07:37:10,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:10,803 INFO L481 AbstractCegarLoop]: Abstraction has 5818 states and 8697 transitions. [2020-12-22 07:37:10,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 07:37:10,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8697 transitions. [2020-12-22 07:37:10,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 07:37:10,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:10,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:10,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 07:37:10,805 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:10,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:10,806 INFO L82 PathProgramCache]: Analyzing trace with hash 519920463, now seen corresponding path program 1 times [2020-12-22 07:37:10,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:10,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726469777] [2020-12-22 07:37:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:11,009 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 07:37:11,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726469777] [2020-12-22 07:37:11,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:11,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 07:37:11,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717096095] [2020-12-22 07:37:11,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 07:37:11,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:11,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 07:37:11,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:37:11,012 INFO L87 Difference]: Start difference. First operand 5818 states and 8697 transitions. Second operand 9 states. [2020-12-22 07:37:14,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:14,416 INFO L93 Difference]: Finished difference Result 86486 states and 129671 transitions. [2020-12-22 07:37:14,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 07:37:14,417 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-12-22 07:37:14,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:14,644 INFO L225 Difference]: With dead ends: 86486 [2020-12-22 07:37:14,645 INFO L226 Difference]: Without dead ends: 80724 [2020-12-22 07:37:14,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2020-12-22 07:37:14,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80724 states. [2020-12-22 07:37:16,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80724 to 11578. [2020-12-22 07:37:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11578 states. [2020-12-22 07:37:16,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 17081 transitions. [2020-12-22 07:37:16,363 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 17081 transitions. Word has length 90 [2020-12-22 07:37:16,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:16,363 INFO L481 AbstractCegarLoop]: Abstraction has 11578 states and 17081 transitions. [2020-12-22 07:37:16,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 07:37:16,363 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 17081 transitions. [2020-12-22 07:37:16,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 07:37:16,364 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:16,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:16,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 07:37:16,365 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:16,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:16,366 INFO L82 PathProgramCache]: Analyzing trace with hash 78162119, now seen corresponding path program 1 times [2020-12-22 07:37:16,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:16,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379672246] [2020-12-22 07:37:16,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:16,725 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 07:37:16,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379672246] [2020-12-22 07:37:16,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:16,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 07:37:16,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702124569] [2020-12-22 07:37:16,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 07:37:16,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:16,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 07:37:16,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:37:16,727 INFO L87 Difference]: Start difference. First operand 11578 states and 17081 transitions. Second operand 9 states. [2020-12-22 07:37:18,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:18,165 INFO L93 Difference]: Finished difference Result 28864 states and 42748 transitions. [2020-12-22 07:37:18,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 07:37:18,166 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-12-22 07:37:18,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:18,209 INFO L225 Difference]: With dead ends: 28864 [2020-12-22 07:37:18,209 INFO L226 Difference]: Without dead ends: 17342 [2020-12-22 07:37:18,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-12-22 07:37:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17342 states. [2020-12-22 07:37:19,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17342 to 11578. [2020-12-22 07:37:19,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11578 states. [2020-12-22 07:37:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 16953 transitions. [2020-12-22 07:37:19,038 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 16953 transitions. Word has length 92 [2020-12-22 07:37:19,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:19,038 INFO L481 AbstractCegarLoop]: Abstraction has 11578 states and 16953 transitions. [2020-12-22 07:37:19,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 07:37:19,039 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 16953 transitions. [2020-12-22 07:37:19,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 07:37:19,039 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:19,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:19,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 07:37:19,040 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:19,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:19,041 INFO L82 PathProgramCache]: Analyzing trace with hash 11668607, now seen corresponding path program 1 times [2020-12-22 07:37:19,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:19,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779662789] [2020-12-22 07:37:19,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:19,094 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 07:37:19,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779662789] [2020-12-22 07:37:19,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:19,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:37:19,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710415933] [2020-12-22 07:37:19,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:37:19,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:19,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:37:19,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:19,096 INFO L87 Difference]: Start difference. First operand 11578 states and 16953 transitions. Second operand 3 states. [2020-12-22 07:37:20,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:20,067 INFO L93 Difference]: Finished difference Result 29246 states and 42619 transitions. [2020-12-22 07:37:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:37:20,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-12-22 07:37:20,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:20,102 INFO L225 Difference]: With dead ends: 29246 [2020-12-22 07:37:20,102 INFO L226 Difference]: Without dead ends: 17724 [2020-12-22 07:37:20,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:20,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17724 states. [2020-12-22 07:37:21,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17724 to 17722. [2020-12-22 07:37:21,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17722 states. [2020-12-22 07:37:21,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17722 states to 17722 states and 25337 transitions. [2020-12-22 07:37:21,416 INFO L78 Accepts]: Start accepts. Automaton has 17722 states and 25337 transitions. Word has length 92 [2020-12-22 07:37:21,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:21,417 INFO L481 AbstractCegarLoop]: Abstraction has 17722 states and 25337 transitions. [2020-12-22 07:37:21,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:37:21,417 INFO L276 IsEmpty]: Start isEmpty. Operand 17722 states and 25337 transitions. [2020-12-22 07:37:21,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 07:37:21,418 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:21,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:21,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 07:37:21,418 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:21,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:21,420 INFO L82 PathProgramCache]: Analyzing trace with hash 2008302822, now seen corresponding path program 1 times [2020-12-22 07:37:21,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:21,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019853693] [2020-12-22 07:37:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:21,535 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 07:37:21,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019853693] [2020-12-22 07:37:21,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:21,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 07:37:21,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951535957] [2020-12-22 07:37:21,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 07:37:21,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:21,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 07:37:21,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-22 07:37:21,537 INFO L87 Difference]: Start difference. First operand 17722 states and 25337 transitions. Second operand 8 states. [2020-12-22 07:37:24,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:24,264 INFO L93 Difference]: Finished difference Result 29151 states and 41457 transitions. [2020-12-22 07:37:24,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 07:37:24,264 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-12-22 07:37:24,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:24,385 INFO L225 Difference]: With dead ends: 29151 [2020-12-22 07:37:24,385 INFO L226 Difference]: Without dead ends: 29149 [2020-12-22 07:37:24,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-22 07:37:24,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29149 states. [2020-12-22 07:37:25,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29149 to 18106. [2020-12-22 07:37:25,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18106 states. [2020-12-22 07:37:25,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18106 states to 18106 states and 25593 transitions. [2020-12-22 07:37:25,799 INFO L78 Accepts]: Start accepts. Automaton has 18106 states and 25593 transitions. Word has length 93 [2020-12-22 07:37:25,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:25,800 INFO L481 AbstractCegarLoop]: Abstraction has 18106 states and 25593 transitions. [2020-12-22 07:37:25,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 07:37:25,800 INFO L276 IsEmpty]: Start isEmpty. Operand 18106 states and 25593 transitions. [2020-12-22 07:37:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 07:37:25,801 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:25,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:37:25,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 07:37:25,801 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:25,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:25,802 INFO L82 PathProgramCache]: Analyzing trace with hash 411535013, now seen corresponding path program 1 times [2020-12-22 07:37:25,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:25,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038290432] [2020-12-22 07:37:25,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:25,873 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 07:37:25,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038290432] [2020-12-22 07:37:25,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:25,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:37:25,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334398703] [2020-12-22 07:37:25,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:37:25,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:25,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:37:25,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:25,876 INFO L87 Difference]: Start difference. First operand 18106 states and 25593 transitions. Second operand 3 states. [2020-12-22 07:37:27,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:27,779 INFO L93 Difference]: Finished difference Result 41600 states and 59005 transitions. [2020-12-22 07:37:27,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:37:27,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-12-22 07:37:27,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:27,809 INFO L225 Difference]: With dead ends: 41600 [2020-12-22 07:37:27,809 INFO L226 Difference]: Without dead ends: 23550 [2020-12-22 07:37:27,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:37:27,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23550 states. [2020-12-22 07:37:29,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23550 to 23548. [2020-12-22 07:37:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23548 states. [2020-12-22 07:37:29,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23548 states to 23548 states and 33275 transitions. [2020-12-22 07:37:29,662 INFO L78 Accepts]: Start accepts. Automaton has 23548 states and 33275 transitions. Word has length 93 [2020-12-22 07:37:29,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:29,662 INFO L481 AbstractCegarLoop]: Abstraction has 23548 states and 33275 transitions. [2020-12-22 07:37:29,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:37:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand 23548 states and 33275 transitions. [2020-12-22 07:37:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-22 07:37:29,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:29,675 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:29,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 07:37:29,675 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:29,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:29,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1787662099, now seen corresponding path program 1 times [2020-12-22 07:37:29,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:29,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459843493] [2020-12-22 07:37:29,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:30,014 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-22 07:37:30,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459843493] [2020-12-22 07:37:30,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:30,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 07:37:30,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580727897] [2020-12-22 07:37:30,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 07:37:30,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:30,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 07:37:30,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:37:30,016 INFO L87 Difference]: Start difference. First operand 23548 states and 33275 transitions. Second operand 9 states. [2020-12-22 07:37:41,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:37:41,080 INFO L93 Difference]: Finished difference Result 194188 states and 274307 transitions. [2020-12-22 07:37:41,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 07:37:41,080 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-12-22 07:37:41,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:37:41,475 INFO L225 Difference]: With dead ends: 194188 [2020-12-22 07:37:41,476 INFO L226 Difference]: Without dead ends: 170698 [2020-12-22 07:37:41,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-12-22 07:37:41,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170698 states. [2020-12-22 07:37:46,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170698 to 47036. [2020-12-22 07:37:46,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47036 states. [2020-12-22 07:37:46,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47036 states to 47036 states and 66235 transitions. [2020-12-22 07:37:46,210 INFO L78 Accepts]: Start accepts. Automaton has 47036 states and 66235 transitions. Word has length 129 [2020-12-22 07:37:46,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:37:46,210 INFO L481 AbstractCegarLoop]: Abstraction has 47036 states and 66235 transitions. [2020-12-22 07:37:46,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 07:37:46,210 INFO L276 IsEmpty]: Start isEmpty. Operand 47036 states and 66235 transitions. [2020-12-22 07:37:46,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-22 07:37:46,225 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:37:46,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:46,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 07:37:46,226 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:37:46,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:37:46,227 INFO L82 PathProgramCache]: Analyzing trace with hash 18879283, now seen corresponding path program 1 times [2020-12-22 07:37:46,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:37:46,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739287769] [2020-12-22 07:37:46,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:37:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:37:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 07:37:46,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739287769] [2020-12-22 07:37:46,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:37:46,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 07:37:46,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400993968] [2020-12-22 07:37:46,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 07:37:46,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:37:46,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 07:37:46,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:37:46,545 INFO L87 Difference]: Start difference. First operand 47036 states and 66235 transitions. Second operand 9 states. [2020-12-22 07:38:00,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:38:00,272 INFO L93 Difference]: Finished difference Result 217676 states and 307267 transitions. [2020-12-22 07:38:00,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 07:38:00,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-12-22 07:38:00,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:38:00,655 INFO L225 Difference]: With dead ends: 217676 [2020-12-22 07:38:00,655 INFO L226 Difference]: Without dead ends: 194186 [2020-12-22 07:38:00,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-12-22 07:38:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194186 states. [2020-12-22 07:38:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194186 to 82172. [2020-12-22 07:38:07,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82172 states. [2020-12-22 07:38:08,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82172 states to 82172 states and 115387 transitions. [2020-12-22 07:38:08,099 INFO L78 Accepts]: Start accepts. Automaton has 82172 states and 115387 transitions. Word has length 129 [2020-12-22 07:38:08,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:38:08,100 INFO L481 AbstractCegarLoop]: Abstraction has 82172 states and 115387 transitions. [2020-12-22 07:38:08,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 07:38:08,100 INFO L276 IsEmpty]: Start isEmpty. Operand 82172 states and 115387 transitions. [2020-12-22 07:38:08,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-22 07:38:08,115 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:38:08,116 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:08,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 07:38:08,116 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:38:08,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:38:08,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1150519123, now seen corresponding path program 1 times [2020-12-22 07:38:08,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:38:08,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142599409] [2020-12-22 07:38:08,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:38:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:38:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 07:38:08,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142599409] [2020-12-22 07:38:08,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:38:08,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 07:38:08,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889719820] [2020-12-22 07:38:08,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 07:38:08,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:38:08,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 07:38:08,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:38:08,365 INFO L87 Difference]: Start difference. First operand 82172 states and 115387 transitions. Second operand 9 states. [2020-12-22 07:38:24,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:38:24,847 INFO L93 Difference]: Finished difference Result 241164 states and 340227 transitions. [2020-12-22 07:38:24,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 07:38:24,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-12-22 07:38:24,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:38:25,384 INFO L225 Difference]: With dead ends: 241164 [2020-12-22 07:38:25,384 INFO L226 Difference]: Without dead ends: 217674 [2020-12-22 07:38:25,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-12-22 07:38:25,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217674 states. [2020-12-22 07:38:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217674 to 105660. [2020-12-22 07:38:35,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105660 states. [2020-12-22 07:38:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105660 states to 105660 states and 148347 transitions. [2020-12-22 07:38:35,521 INFO L78 Accepts]: Start accepts. Automaton has 105660 states and 148347 transitions. Word has length 129 [2020-12-22 07:38:35,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:38:35,522 INFO L481 AbstractCegarLoop]: Abstraction has 105660 states and 148347 transitions. [2020-12-22 07:38:35,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 07:38:35,522 INFO L276 IsEmpty]: Start isEmpty. Operand 105660 states and 148347 transitions. [2020-12-22 07:38:35,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-22 07:38:35,538 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:38:35,538 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:35,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 07:38:35,539 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:38:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:38:35,540 INFO L82 PathProgramCache]: Analyzing trace with hash -84939917, now seen corresponding path program 1 times [2020-12-22 07:38:35,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:38:35,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592428664] [2020-12-22 07:38:35,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:38:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:38:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 07:38:35,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592428664] [2020-12-22 07:38:35,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:38:35,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 07:38:35,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687330035] [2020-12-22 07:38:35,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 07:38:35,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:38:35,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 07:38:35,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:38:35,752 INFO L87 Difference]: Start difference. First operand 105660 states and 148347 transitions. Second operand 9 states. [2020-12-22 07:38:55,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:38:55,561 INFO L93 Difference]: Finished difference Result 264652 states and 373187 transitions. [2020-12-22 07:38:55,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 07:38:55,561 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-12-22 07:38:55,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:38:55,981 INFO L225 Difference]: With dead ends: 264652 [2020-12-22 07:38:55,981 INFO L226 Difference]: Without dead ends: 241162 [2020-12-22 07:38:56,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-12-22 07:38:56,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241162 states. [2020-12-22 07:39:08,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241162 to 129148. [2020-12-22 07:39:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129148 states. [2020-12-22 07:39:08,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129148 states to 129148 states and 181307 transitions. [2020-12-22 07:39:08,951 INFO L78 Accepts]: Start accepts. Automaton has 129148 states and 181307 transitions. Word has length 129 [2020-12-22 07:39:08,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:39:08,951 INFO L481 AbstractCegarLoop]: Abstraction has 129148 states and 181307 transitions. [2020-12-22 07:39:08,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 07:39:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand 129148 states and 181307 transitions. [2020-12-22 07:39:08,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-22 07:39:08,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:39:08,966 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:08,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 07:39:08,966 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:39:08,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:39:08,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1505935469, now seen corresponding path program 1 times [2020-12-22 07:39:08,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:39:08,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357329355] [2020-12-22 07:39:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:39:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:39:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 07:39:09,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357329355] [2020-12-22 07:39:09,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:39:09,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 07:39:09,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554645875] [2020-12-22 07:39:09,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 07:39:09,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:39:09,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 07:39:09,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:39:09,149 INFO L87 Difference]: Start difference. First operand 129148 states and 181307 transitions. Second operand 9 states. [2020-12-22 07:39:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:39:34,097 INFO L93 Difference]: Finished difference Result 288140 states and 406147 transitions. [2020-12-22 07:39:34,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 07:39:34,097 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-12-22 07:39:34,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:39:34,514 INFO L225 Difference]: With dead ends: 288140 [2020-12-22 07:39:34,514 INFO L226 Difference]: Without dead ends: 264650 [2020-12-22 07:39:34,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-12-22 07:39:34,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264650 states.