/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/product-lines/elevator_spec3_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:09:49,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:09:49,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:09:49,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:09:49,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:09:49,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:09:49,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:09:49,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:09:49,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:09:49,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:09:49,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:09:49,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:09:49,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:09:49,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:09:49,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:09:49,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:09:49,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:09:49,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:09:49,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:09:49,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:09:49,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:09:49,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:09:49,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:09:49,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:09:49,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:09:49,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:09:49,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:09:49,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:09:49,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:09:49,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:09:49,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:09:49,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:09:49,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:09:49,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:09:49,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:09:49,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:09:49,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:09:49,445 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:09:49,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:09:49,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:09:49,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:09:49,452 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:09:49,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:09:49,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:09:49,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:09:49,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:09:49,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:09:49,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:09:49,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:09:49,453 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:09:49,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:09:49,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:09:49,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:09:49,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:09:49,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:09:49,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:09:49,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:09:49,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:09:49,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:09:49,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:09:49,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:09:49,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:09:49,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:09:49,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:09:49,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:09:49,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:09:49,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:09:49,952 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:09:49,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product20.cil.c [2020-12-22 06:09:50,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f992b8cdf/59d44c7c04734a278692ec68168d4254/FLAG93e8d4959 [2020-12-22 06:09:50,831 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:09:50,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product20.cil.c [2020-12-22 06:09:50,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f992b8cdf/59d44c7c04734a278692ec68168d4254/FLAG93e8d4959 [2020-12-22 06:09:50,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f992b8cdf/59d44c7c04734a278692ec68168d4254 [2020-12-22 06:09:50,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:09:50,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:09:50,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:09:50,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:09:50,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:09:50,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:09:50" (1/1) ... [2020-12-22 06:09:50,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c3ac50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:50, skipping insertion in model container [2020-12-22 06:09:50,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:09:50" (1/1) ... [2020-12-22 06:09:51,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:09:51,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:09:51,698 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product20.cil.c[62252,62265] [2020-12-22 06:09:51,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:09:51,799 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:09:51,980 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/product-lines/elevator_spec3_product20.cil.c[62252,62265] [2020-12-22 06:09:51,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:09:52,055 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:09:52,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52 WrapperNode [2020-12-22 06:09:52,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:09:52,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:09:52,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:09:52,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:09:52,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (1/1) ... [2020-12-22 06:09:52,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (1/1) ... [2020-12-22 06:09:52,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:09:52,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:09:52,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:09:52,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:09:52,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (1/1) ... [2020-12-22 06:09:52,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (1/1) ... [2020-12-22 06:09:53,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (1/1) ... [2020-12-22 06:09:53,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (1/1) ... [2020-12-22 06:09:53,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (1/1) ... [2020-12-22 06:09:54,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (1/1) ... [2020-12-22 06:09:54,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (1/1) ... [2020-12-22 06:09:54,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:09:54,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:09:54,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:09:54,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:09:54,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (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 06:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:09:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:10:17,988 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:10:17,989 INFO L299 CfgBuilder]: Removed 2777 assume(true) statements. [2020-12-22 06:10:18,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:10:18 BoogieIcfgContainer [2020-12-22 06:10:18,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:10:18,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:10:18,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:10:18,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:10:18,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:09:50" (1/3) ... [2020-12-22 06:10:18,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f875e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:10:18, skipping insertion in model container [2020-12-22 06:10:18,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:52" (2/3) ... [2020-12-22 06:10:18,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f875e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:10:18, skipping insertion in model container [2020-12-22 06:10:18,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:10:18" (3/3) ... [2020-12-22 06:10:18,013 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product20.cil.c [2020-12-22 06:10:18,019 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:10:18,036 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 06:10:18,056 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 06:10:18,120 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:10:18,120 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:10:18,121 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:10:18,121 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:10:18,121 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:10:18,121 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:10:18,121 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:10:18,121 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:10:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 11983 states. [2020-12-22 06:10:18,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 06:10:18,298 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:18,299 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] [2020-12-22 06:10:18,300 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:18,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:18,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1413995396, now seen corresponding path program 1 times [2020-12-22 06:10:18,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:18,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189403375] [2020-12-22 06:10:18,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:18,795 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 06:10:18,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189403375] [2020-12-22 06:10:18,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:18,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:18,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804440574] [2020-12-22 06:10:18,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:18,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:18,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:18,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:18,832 INFO L87 Difference]: Start difference. First operand 11983 states. Second operand 4 states. [2020-12-22 06:10:20,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:20,727 INFO L93 Difference]: Finished difference Result 47757 states and 90109 transitions. [2020-12-22 06:10:20,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:20,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-12-22 06:10:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:21,002 INFO L225 Difference]: With dead ends: 47757 [2020-12-22 06:10:21,002 INFO L226 Difference]: Without dead ends: 35787 [2020-12-22 06:10:21,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:21,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35787 states. [2020-12-22 06:10:22,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35787 to 11991. [2020-12-22 06:10:22,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11991 states. [2020-12-22 06:10:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11991 states to 11991 states and 22603 transitions. [2020-12-22 06:10:22,419 INFO L78 Accepts]: Start accepts. Automaton has 11991 states and 22603 transitions. Word has length 30 [2020-12-22 06:10:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:22,421 INFO L481 AbstractCegarLoop]: Abstraction has 11991 states and 22603 transitions. [2020-12-22 06:10:22,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 11991 states and 22603 transitions. [2020-12-22 06:10:22,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:10:22,432 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:22,432 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] [2020-12-22 06:10:22,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:10:22,434 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:22,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:22,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1045369147, now seen corresponding path program 1 times [2020-12-22 06:10:22,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:22,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902405331] [2020-12-22 06:10:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:22,621 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 06:10:22,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902405331] [2020-12-22 06:10:22,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:22,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:10:22,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409365707] [2020-12-22 06:10:22,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:10:22,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:22,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:10:22,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:22,627 INFO L87 Difference]: Start difference. First operand 11991 states and 22603 transitions. Second operand 3 states. [2020-12-22 06:10:23,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:23,194 INFO L93 Difference]: Finished difference Result 23898 states and 45053 transitions. [2020-12-22 06:10:23,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:10:23,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-22 06:10:23,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:23,261 INFO L225 Difference]: With dead ends: 23898 [2020-12-22 06:10:23,261 INFO L226 Difference]: Without dead ends: 11921 [2020-12-22 06:10:23,281 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 06:10:23,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2020-12-22 06:10:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11921. [2020-12-22 06:10:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11921 states. [2020-12-22 06:10:23,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11921 states to 11921 states and 22463 transitions. [2020-12-22 06:10:23,611 INFO L78 Accepts]: Start accepts. Automaton has 11921 states and 22463 transitions. Word has length 31 [2020-12-22 06:10:23,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:23,611 INFO L481 AbstractCegarLoop]: Abstraction has 11921 states and 22463 transitions. [2020-12-22 06:10:23,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:10:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 11921 states and 22463 transitions. [2020-12-22 06:10:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 06:10:23,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:23,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:23,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:10:23,615 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:23,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:23,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1862319100, now seen corresponding path program 1 times [2020-12-22 06:10:23,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:23,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088540627] [2020-12-22 06:10:23,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:23,761 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 06:10:23,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088540627] [2020-12-22 06:10:23,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:23,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:23,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400866384] [2020-12-22 06:10:23,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:23,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:23,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:23,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:23,769 INFO L87 Difference]: Start difference. First operand 11921 states and 22463 transitions. Second operand 4 states. [2020-12-22 06:10:24,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:24,356 INFO L93 Difference]: Finished difference Result 23816 states and 44889 transitions. [2020-12-22 06:10:24,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:24,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-22 06:10:24,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:24,396 INFO L225 Difference]: With dead ends: 23816 [2020-12-22 06:10:24,396 INFO L226 Difference]: Without dead ends: 11921 [2020-12-22 06:10:24,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:24,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2020-12-22 06:10:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11921. [2020-12-22 06:10:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11921 states. [2020-12-22 06:10:24,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11921 states to 11921 states and 22461 transitions. [2020-12-22 06:10:24,929 INFO L78 Accepts]: Start accepts. Automaton has 11921 states and 22461 transitions. Word has length 34 [2020-12-22 06:10:24,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:24,937 INFO L481 AbstractCegarLoop]: Abstraction has 11921 states and 22461 transitions. [2020-12-22 06:10:24,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:24,938 INFO L276 IsEmpty]: Start isEmpty. Operand 11921 states and 22461 transitions. [2020-12-22 06:10:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 06:10:24,941 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:24,941 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] [2020-12-22 06:10:24,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:10:24,942 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:24,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:24,942 INFO L82 PathProgramCache]: Analyzing trace with hash -830201161, now seen corresponding path program 1 times [2020-12-22 06:10:24,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:24,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23876606] [2020-12-22 06:10:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:25,043 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 06:10:25,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23876606] [2020-12-22 06:10:25,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:25,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:25,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813363951] [2020-12-22 06:10:25,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:25,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:25,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:25,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:25,046 INFO L87 Difference]: Start difference. First operand 11921 states and 22461 transitions. Second operand 4 states. [2020-12-22 06:10:25,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:25,747 INFO L93 Difference]: Finished difference Result 23816 states and 44886 transitions. [2020-12-22 06:10:25,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:25,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-12-22 06:10:25,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:25,782 INFO L225 Difference]: With dead ends: 23816 [2020-12-22 06:10:25,782 INFO L226 Difference]: Without dead ends: 11921 [2020-12-22 06:10:25,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:25,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2020-12-22 06:10:26,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11921. [2020-12-22 06:10:26,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11921 states. [2020-12-22 06:10:26,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11921 states to 11921 states and 22459 transitions. [2020-12-22 06:10:26,150 INFO L78 Accepts]: Start accepts. Automaton has 11921 states and 22459 transitions. Word has length 35 [2020-12-22 06:10:26,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:26,151 INFO L481 AbstractCegarLoop]: Abstraction has 11921 states and 22459 transitions. [2020-12-22 06:10:26,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:26,151 INFO L276 IsEmpty]: Start isEmpty. Operand 11921 states and 22459 transitions. [2020-12-22 06:10:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 06:10:26,152 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:26,152 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] [2020-12-22 06:10:26,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:10:26,152 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:26,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:26,153 INFO L82 PathProgramCache]: Analyzing trace with hash 910622199, now seen corresponding path program 1 times [2020-12-22 06:10:26,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:26,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134785967] [2020-12-22 06:10:26,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:26,335 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 06:10:26,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134785967] [2020-12-22 06:10:26,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:26,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:26,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747454556] [2020-12-22 06:10:26,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:26,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:26,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:26,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:26,338 INFO L87 Difference]: Start difference. First operand 11921 states and 22459 transitions. Second operand 4 states. [2020-12-22 06:10:26,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:26,999 INFO L93 Difference]: Finished difference Result 23816 states and 44883 transitions. [2020-12-22 06:10:27,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:27,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-12-22 06:10:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:27,040 INFO L225 Difference]: With dead ends: 23816 [2020-12-22 06:10:27,040 INFO L226 Difference]: Without dead ends: 11921 [2020-12-22 06:10:27,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:27,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2020-12-22 06:10:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11921. [2020-12-22 06:10:27,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11921 states. [2020-12-22 06:10:27,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11921 states to 11921 states and 22457 transitions. [2020-12-22 06:10:27,410 INFO L78 Accepts]: Start accepts. Automaton has 11921 states and 22457 transitions. Word has length 36 [2020-12-22 06:10:27,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:27,411 INFO L481 AbstractCegarLoop]: Abstraction has 11921 states and 22457 transitions. [2020-12-22 06:10:27,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:27,411 INFO L276 IsEmpty]: Start isEmpty. Operand 11921 states and 22457 transitions. [2020-12-22 06:10:27,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 06:10:27,412 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:27,412 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] [2020-12-22 06:10:27,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:10:27,413 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:27,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:27,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1648822958, now seen corresponding path program 1 times [2020-12-22 06:10:27,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:27,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523405270] [2020-12-22 06:10:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:27,666 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 06:10:27,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523405270] [2020-12-22 06:10:27,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:27,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:27,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564165768] [2020-12-22 06:10:27,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:27,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:27,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:27,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:27,669 INFO L87 Difference]: Start difference. First operand 11921 states and 22457 transitions. Second operand 4 states. [2020-12-22 06:10:28,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:28,375 INFO L93 Difference]: Finished difference Result 23816 states and 44880 transitions. [2020-12-22 06:10:28,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:28,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-12-22 06:10:28,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:28,425 INFO L225 Difference]: With dead ends: 23816 [2020-12-22 06:10:28,425 INFO L226 Difference]: Without dead ends: 11921 [2020-12-22 06:10:28,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:28,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2020-12-22 06:10:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11921. [2020-12-22 06:10:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11921 states. [2020-12-22 06:10:29,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11921 states to 11921 states and 22455 transitions. [2020-12-22 06:10:29,050 INFO L78 Accepts]: Start accepts. Automaton has 11921 states and 22455 transitions. Word has length 37 [2020-12-22 06:10:29,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:29,051 INFO L481 AbstractCegarLoop]: Abstraction has 11921 states and 22455 transitions. [2020-12-22 06:10:29,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:29,051 INFO L276 IsEmpty]: Start isEmpty. Operand 11921 states and 22455 transitions. [2020-12-22 06:10:29,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 06:10:29,052 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:29,052 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] [2020-12-22 06:10:29,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:10:29,052 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:29,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:29,058 INFO L82 PathProgramCache]: Analyzing trace with hash -77638670, now seen corresponding path program 1 times [2020-12-22 06:10:29,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:29,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159518486] [2020-12-22 06:10:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:29,164 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 06:10:29,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159518486] [2020-12-22 06:10:29,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:29,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:10:29,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937145741] [2020-12-22 06:10:29,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 06:10:29,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:29,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 06:10:29,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:10:29,167 INFO L87 Difference]: Start difference. First operand 11921 states and 22455 transitions. Second operand 7 states. [2020-12-22 06:10:32,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:32,595 INFO L93 Difference]: Finished difference Result 42721 states and 80404 transitions. [2020-12-22 06:10:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 06:10:32,596 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-12-22 06:10:32,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:32,728 INFO L225 Difference]: With dead ends: 42721 [2020-12-22 06:10:32,729 INFO L226 Difference]: Without dead ends: 30870 [2020-12-22 06:10:32,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-22 06:10:32,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30870 states. [2020-12-22 06:10:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30870 to 21144. [2020-12-22 06:10:33,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21144 states. [2020-12-22 06:10:33,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21144 states to 21144 states and 39828 transitions. [2020-12-22 06:10:33,938 INFO L78 Accepts]: Start accepts. Automaton has 21144 states and 39828 transitions. Word has length 38 [2020-12-22 06:10:33,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:33,939 INFO L481 AbstractCegarLoop]: Abstraction has 21144 states and 39828 transitions. [2020-12-22 06:10:33,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 06:10:33,939 INFO L276 IsEmpty]: Start isEmpty. Operand 21144 states and 39828 transitions. [2020-12-22 06:10:33,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 06:10:33,941 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:33,942 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] [2020-12-22 06:10:33,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:10:33,942 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:33,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:33,943 INFO L82 PathProgramCache]: Analyzing trace with hash -770352627, now seen corresponding path program 1 times [2020-12-22 06:10:33,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:33,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557064745] [2020-12-22 06:10:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:34,055 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 06:10:34,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557064745] [2020-12-22 06:10:34,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:34,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:34,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693669196] [2020-12-22 06:10:34,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:34,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:34,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:34,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:34,057 INFO L87 Difference]: Start difference. First operand 21144 states and 39828 transitions. Second operand 5 states. [2020-12-22 06:10:41,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:41,677 INFO L93 Difference]: Finished difference Result 177801 states and 335121 transitions. [2020-12-22 06:10:41,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:10:41,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-12-22 06:10:41,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:42,316 INFO L225 Difference]: With dead ends: 177801 [2020-12-22 06:10:42,316 INFO L226 Difference]: Without dead ends: 156727 [2020-12-22 06:10:42,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:10:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156727 states. [2020-12-22 06:10:45,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156727 to 39827. [2020-12-22 06:10:45,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39827 states. [2020-12-22 06:10:45,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39827 states to 39827 states and 75004 transitions. [2020-12-22 06:10:45,090 INFO L78 Accepts]: Start accepts. Automaton has 39827 states and 75004 transitions. Word has length 38 [2020-12-22 06:10:45,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:45,091 INFO L481 AbstractCegarLoop]: Abstraction has 39827 states and 75004 transitions. [2020-12-22 06:10:45,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:45,091 INFO L276 IsEmpty]: Start isEmpty. Operand 39827 states and 75004 transitions. [2020-12-22 06:10:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:10:45,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:45,092 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] [2020-12-22 06:10:45,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:10:45,092 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:45,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:45,093 INFO L82 PathProgramCache]: Analyzing trace with hash -93950583, now seen corresponding path program 1 times [2020-12-22 06:10:45,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:45,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408291385] [2020-12-22 06:10:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:45,152 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 06:10:45,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408291385] [2020-12-22 06:10:45,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:45,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:10:45,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519763281] [2020-12-22 06:10:45,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:10:45,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:45,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:10:45,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:45,155 INFO L87 Difference]: Start difference. First operand 39827 states and 75004 transitions. Second operand 3 states. [2020-12-22 06:10:48,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:48,204 INFO L93 Difference]: Finished difference Result 118321 states and 222816 transitions. [2020-12-22 06:10:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:10:48,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-12-22 06:10:48,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:48,492 INFO L225 Difference]: With dead ends: 118321 [2020-12-22 06:10:48,492 INFO L226 Difference]: Without dead ends: 78526 [2020-12-22 06:10:48,562 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 06:10:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78526 states. [2020-12-22 06:10:50,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78526 to 39703. [2020-12-22 06:10:50,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39703 states. [2020-12-22 06:10:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39703 states to 39703 states and 74756 transitions. [2020-12-22 06:10:50,401 INFO L78 Accepts]: Start accepts. Automaton has 39703 states and 74756 transitions. Word has length 39 [2020-12-22 06:10:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:50,402 INFO L481 AbstractCegarLoop]: Abstraction has 39703 states and 74756 transitions. [2020-12-22 06:10:50,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:10:50,402 INFO L276 IsEmpty]: Start isEmpty. Operand 39703 states and 74756 transitions. [2020-12-22 06:10:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:10:50,402 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:50,402 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] [2020-12-22 06:10:50,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:10:50,403 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:50,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:50,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1958693158, now seen corresponding path program 1 times [2020-12-22 06:10:50,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:50,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345019965] [2020-12-22 06:10:50,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:50,479 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 06:10:50,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345019965] [2020-12-22 06:10:50,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:50,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:50,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904850510] [2020-12-22 06:10:50,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:50,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:50,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:50,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:50,481 INFO L87 Difference]: Start difference. First operand 39703 states and 74756 transitions. Second operand 5 states. [2020-12-22 06:10:56,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:56,422 INFO L93 Difference]: Finished difference Result 94950 states and 178601 transitions. [2020-12-22 06:10:56,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:10:56,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-12-22 06:10:56,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:56,519 INFO L225 Difference]: With dead ends: 94950 [2020-12-22 06:10:56,519 INFO L226 Difference]: Without dead ends: 55281 [2020-12-22 06:10:56,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:10:56,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55281 states. [2020-12-22 06:10:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55281 to 54821. [2020-12-22 06:10:58,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54821 states. [2020-12-22 06:10:58,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54821 states to 54821 states and 102388 transitions. [2020-12-22 06:10:58,418 INFO L78 Accepts]: Start accepts. Automaton has 54821 states and 102388 transitions. Word has length 39 [2020-12-22 06:10:58,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:58,418 INFO L481 AbstractCegarLoop]: Abstraction has 54821 states and 102388 transitions. [2020-12-22 06:10:58,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:58,418 INFO L276 IsEmpty]: Start isEmpty. Operand 54821 states and 102388 transitions. [2020-12-22 06:10:58,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 06:10:58,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:58,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:58,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:10:58,420 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:58,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:58,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1970350501, now seen corresponding path program 1 times [2020-12-22 06:10:58,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:58,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358495495] [2020-12-22 06:10:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:58,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358495495] [2020-12-22 06:10:58,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:58,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:58,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742075962] [2020-12-22 06:10:58,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:58,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:58,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:58,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:58,526 INFO L87 Difference]: Start difference. First operand 54821 states and 102388 transitions. Second operand 5 states. [2020-12-22 06:11:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:02,868 INFO L93 Difference]: Finished difference Result 162769 states and 304108 transitions. [2020-12-22 06:11:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:11:02,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-12-22 06:11:02,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:03,094 INFO L225 Difference]: With dead ends: 162769 [2020-12-22 06:11:03,095 INFO L226 Difference]: Without dead ends: 107988 [2020-12-22 06:11:03,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 06:11:03,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107988 states. [2020-12-22 06:11:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107988 to 54821. [2020-12-22 06:11:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54821 states. [2020-12-22 06:11:05,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54821 states to 54821 states and 102277 transitions. [2020-12-22 06:11:05,581 INFO L78 Accepts]: Start accepts. Automaton has 54821 states and 102277 transitions. Word has length 42 [2020-12-22 06:11:05,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:05,581 INFO L481 AbstractCegarLoop]: Abstraction has 54821 states and 102277 transitions. [2020-12-22 06:11:05,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:11:05,582 INFO L276 IsEmpty]: Start isEmpty. Operand 54821 states and 102277 transitions. [2020-12-22 06:11:05,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 06:11:05,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:05,583 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] [2020-12-22 06:11:05,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:11:05,587 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:05,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:05,593 INFO L82 PathProgramCache]: Analyzing trace with hash -105591638, now seen corresponding path program 1 times [2020-12-22 06:11:05,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:05,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087849182] [2020-12-22 06:11:05,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:05,670 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 06:11:05,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087849182] [2020-12-22 06:11:05,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:05,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:11:05,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703009373] [2020-12-22 06:11:05,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:11:05,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:05,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:11:05,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:05,673 INFO L87 Difference]: Start difference. First operand 54821 states and 102277 transitions. Second operand 5 states. [2020-12-22 06:11:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:20,420 INFO L93 Difference]: Finished difference Result 470087 states and 878495 transitions. [2020-12-22 06:11:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:11:20,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-12-22 06:11:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:21,417 INFO L225 Difference]: With dead ends: 470087 [2020-12-22 06:11:21,418 INFO L226 Difference]: Without dead ends: 415325 [2020-12-22 06:11:21,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:11:21,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415325 states. [2020-12-22 06:11:27,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415325 to 105673. [2020-12-22 06:11:27,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105673 states. [2020-12-22 06:11:28,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105673 states to 105673 states and 197078 transitions. [2020-12-22 06:11:28,126 INFO L78 Accepts]: Start accepts. Automaton has 105673 states and 197078 transitions. Word has length 43 [2020-12-22 06:11:28,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:28,126 INFO L481 AbstractCegarLoop]: Abstraction has 105673 states and 197078 transitions. [2020-12-22 06:11:28,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:11:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand 105673 states and 197078 transitions. [2020-12-22 06:11:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 06:11:28,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:28,127 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] [2020-12-22 06:11:28,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:11:28,127 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:28,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:28,128 INFO L82 PathProgramCache]: Analyzing trace with hash 610125088, now seen corresponding path program 1 times [2020-12-22 06:11:28,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:28,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241664317] [2020-12-22 06:11:28,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:28,194 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 06:11:28,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241664317] [2020-12-22 06:11:28,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:28,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:11:28,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818321441] [2020-12-22 06:11:28,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:11:28,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:28,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:11:28,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:28,196 INFO L87 Difference]: Start difference. First operand 105673 states and 197078 transitions. Second operand 3 states. [2020-12-22 06:11:35,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:35,238 INFO L93 Difference]: Finished difference Result 314402 states and 586634 transitions. [2020-12-22 06:11:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:11:35,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-12-22 06:11:35,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:35,882 INFO L225 Difference]: With dead ends: 314402 [2020-12-22 06:11:35,882 INFO L226 Difference]: Without dead ends: 208766 [2020-12-22 06:11:35,994 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 06:11:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208766 states. [2020-12-22 06:11:40,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208766 to 105419. [2020-12-22 06:11:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105419 states. [2020-12-22 06:11:40,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105419 states to 105419 states and 196577 transitions. [2020-12-22 06:11:40,979 INFO L78 Accepts]: Start accepts. Automaton has 105419 states and 196577 transitions. Word has length 44 [2020-12-22 06:11:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:40,979 INFO L481 AbstractCegarLoop]: Abstraction has 105419 states and 196577 transitions. [2020-12-22 06:11:40,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:11:40,979 INFO L276 IsEmpty]: Start isEmpty. Operand 105419 states and 196577 transitions. [2020-12-22 06:11:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 06:11:40,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:40,980 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] [2020-12-22 06:11:40,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 06:11:40,980 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:40,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:40,980 INFO L82 PathProgramCache]: Analyzing trace with hash 581751206, now seen corresponding path program 1 times [2020-12-22 06:11:40,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:40,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728206439] [2020-12-22 06:11:40,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:41,045 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 06:11:41,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728206439] [2020-12-22 06:11:41,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:41,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:11:41,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760032073] [2020-12-22 06:11:41,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:11:41,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:41,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:11:41,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:41,048 INFO L87 Difference]: Start difference. First operand 105419 states and 196577 transitions. Second operand 3 states. [2020-12-22 06:11:48,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:48,576 INFO L93 Difference]: Finished difference Result 313901 states and 585661 transitions. [2020-12-22 06:11:48,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:11:48,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 06:11:48,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:49,446 INFO L225 Difference]: With dead ends: 313901 [2020-12-22 06:11:49,446 INFO L226 Difference]: Without dead ends: 208525 [2020-12-22 06:11:49,690 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 06:11:49,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208525 states. [2020-12-22 06:11:55,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208525 to 105307. [2020-12-22 06:11:55,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105307 states. [2020-12-22 06:11:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105307 states to 105307 states and 196241 transitions. [2020-12-22 06:11:55,905 INFO L78 Accepts]: Start accepts. Automaton has 105307 states and 196241 transitions. Word has length 48 [2020-12-22 06:11:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:55,905 INFO L481 AbstractCegarLoop]: Abstraction has 105307 states and 196241 transitions. [2020-12-22 06:11:55,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:11:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 105307 states and 196241 transitions. [2020-12-22 06:11:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 06:11:55,906 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:55,906 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] [2020-12-22 06:11:55,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 06:11:55,906 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:55,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:55,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1368824669, now seen corresponding path program 1 times [2020-12-22 06:11:55,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:55,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330075471] [2020-12-22 06:11:55,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:55,979 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 06:11:55,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330075471] [2020-12-22 06:11:55,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:55,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:11:55,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569193571] [2020-12-22 06:11:55,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:11:55,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:55,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:11:55,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:55,983 INFO L87 Difference]: Start difference. First operand 105307 states and 196241 transitions. Second operand 5 states. [2020-12-22 06:12:23,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:12:23,393 INFO L93 Difference]: Finished difference Result 881804 states and 1646250 transitions. [2020-12-22 06:12:23,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:12:23,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-12-22 06:12:23,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:12:25,827 INFO L225 Difference]: With dead ends: 881804 [2020-12-22 06:12:25,827 INFO L226 Difference]: Without dead ends: 776551 [2020-12-22 06:12:26,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:12:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776551 states. [2020-12-22 06:12:40,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776551 to 205307. [2020-12-22 06:12:40,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205307 states. [2020-12-22 06:12:41,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205307 states to 205307 states and 382385 transitions. [2020-12-22 06:12:41,678 INFO L78 Accepts]: Start accepts. Automaton has 205307 states and 382385 transitions. Word has length 49 [2020-12-22 06:12:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:12:41,678 INFO L481 AbstractCegarLoop]: Abstraction has 205307 states and 382385 transitions. [2020-12-22 06:12:41,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:12:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 205307 states and 382385 transitions. [2020-12-22 06:12:41,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 06:12:41,679 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:12:41,679 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] [2020-12-22 06:12:41,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 06:12:41,679 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:12:41,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:12:41,680 INFO L82 PathProgramCache]: Analyzing trace with hash 403085388, now seen corresponding path program 1 times [2020-12-22 06:12:41,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:12:41,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920134496] [2020-12-22 06:12:41,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:12:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:12:41,752 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 06:12:41,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920134496] [2020-12-22 06:12:41,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:12:41,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:12:41,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218303536] [2020-12-22 06:12:41,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:12:41,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:12:41,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:12:41,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:12:41,756 INFO L87 Difference]: Start difference. First operand 205307 states and 382385 transitions. Second operand 3 states. [2020-12-22 06:12:57,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:12:57,009 INFO L93 Difference]: Finished difference Result 611253 states and 1139467 transitions. [2020-12-22 06:12:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:12:57,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-12-22 06:12:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:12:58,287 INFO L225 Difference]: With dead ends: 611253 [2020-12-22 06:12:58,287 INFO L226 Difference]: Without dead ends: 405996 [2020-12-22 06:12:58,508 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 06:12:58,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405996 states. [2020-12-22 06:13:11,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405996 to 205199. [2020-12-22 06:13:11,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205199 states.