/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_spec13_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:54:30,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:54:30,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:54:30,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:54:30,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:54:30,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:54:30,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:54:30,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:54:30,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:54:30,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:54:30,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:54:30,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:54:30,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:54:30,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:54:30,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:54:30,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:54:30,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:54:30,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:54:30,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:54:30,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:54:30,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:54:30,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:54:30,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:54:30,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:54:30,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:54:30,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:54:30,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:54:30,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:54:30,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:54:30,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:54:30,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:54:30,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:54:30,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:54:30,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:54:30,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:54:30,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:54:30,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:54:30,760 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:54:30,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:54:30,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:54:30,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:54:30,762 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:54:30,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:54:30,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:54:30,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:54:30,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:54:30,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:54:30,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:54:30,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:54:30,764 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:54:30,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:54:30,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:54:30,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:54:30,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:54:30,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:54:30,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:54:30,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:54:30,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:54:30,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:54:30,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:54:30,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:54:30,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:54:30,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:54:31,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:54:31,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:54:31,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:54:31,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:54:31,153 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:54:31,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product29.cil.c [2020-12-22 05:54:31,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe884bf2/58cb4900a65846289206458c1ed3b23a/FLAGcbc777057 [2020-12-22 05:54:32,007 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:54:32,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product29.cil.c [2020-12-22 05:54:32,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe884bf2/58cb4900a65846289206458c1ed3b23a/FLAGcbc777057 [2020-12-22 05:54:32,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe884bf2/58cb4900a65846289206458c1ed3b23a [2020-12-22 05:54:32,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:54:32,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:54:32,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:54:32,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:54:32,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:54:32,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:54:32" (1/1) ... [2020-12-22 05:54:32,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15742fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:32, skipping insertion in model container [2020-12-22 05:54:32,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:54:32" (1/1) ... [2020-12-22 05:54:32,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:54:32,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:54:32,905 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_spec13_product29.cil.c[54116,54129] [2020-12-22 05:54:33,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:54:33,078 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:54:33,154 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_spec13_product29.cil.c[54116,54129] [2020-12-22 05:54:33,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:54:33,246 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:54:33,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33 WrapperNode [2020-12-22 05:54:33,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:54:33,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:54:33,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:54:33,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:54:33,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (1/1) ... [2020-12-22 05:54:33,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (1/1) ... [2020-12-22 05:54:33,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:54:33,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:54:33,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:54:33,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:54:33,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (1/1) ... [2020-12-22 05:54:33,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (1/1) ... [2020-12-22 05:54:34,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (1/1) ... [2020-12-22 05:54:34,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (1/1) ... [2020-12-22 05:54:34,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (1/1) ... [2020-12-22 05:54:34,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (1/1) ... [2020-12-22 05:54:34,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (1/1) ... [2020-12-22 05:54:34,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:54:34,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:54:34,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:54:34,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:54:34,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (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 05:54:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:54:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:54:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:54:34,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:55:02,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:55:02,161 INFO L299 CfgBuilder]: Removed 2011 assume(true) statements. [2020-12-22 05:55:02,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:55:02 BoogieIcfgContainer [2020-12-22 05:55:02,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:55:02,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:55:02,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:55:02,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:55:02,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:54:32" (1/3) ... [2020-12-22 05:55:02,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baf88f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:55:02, skipping insertion in model container [2020-12-22 05:55:02,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:33" (2/3) ... [2020-12-22 05:55:02,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baf88f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:55:02, skipping insertion in model container [2020-12-22 05:55:02,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:55:02" (3/3) ... [2020-12-22 05:55:02,181 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product29.cil.c [2020-12-22 05:55:02,188 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:55:02,197 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 05:55:02,215 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 05:55:02,266 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:55:02,266 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:55:02,267 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:55:02,267 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:55:02,267 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:55:02,267 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:55:02,267 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:55:02,268 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:55:02,397 INFO L276 IsEmpty]: Start isEmpty. Operand 9321 states. [2020-12-22 05:55:02,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 05:55:02,425 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:02,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:02,427 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 05:55:02,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:02,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1674010642, now seen corresponding path program 1 times [2020-12-22 05:55:02,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:02,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986213680] [2020-12-22 05:55:02,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:02,951 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 05:55:02,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986213680] [2020-12-22 05:55:02,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:02,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:02,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336851224] [2020-12-22 05:55:02,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:02,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:02,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:02,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:02,975 INFO L87 Difference]: Start difference. First operand 9321 states. Second operand 5 states. [2020-12-22 05:55:04,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:04,162 INFO L93 Difference]: Finished difference Result 22372 states and 42324 transitions. [2020-12-22 05:55:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:04,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-12-22 05:55:04,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:04,272 INFO L225 Difference]: With dead ends: 22372 [2020-12-22 05:55:04,273 INFO L226 Difference]: Without dead ends: 13055 [2020-12-22 05:55:04,295 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 05:55:04,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13055 states. [2020-12-22 05:55:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13055 to 9317. [2020-12-22 05:55:04,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9317 states. [2020-12-22 05:55:04,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9317 states to 9317 states and 17493 transitions. [2020-12-22 05:55:04,959 INFO L78 Accepts]: Start accepts. Automaton has 9317 states and 17493 transitions. Word has length 57 [2020-12-22 05:55:04,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:04,959 INFO L481 AbstractCegarLoop]: Abstraction has 9317 states and 17493 transitions. [2020-12-22 05:55:04,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:55:04,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9317 states and 17493 transitions. [2020-12-22 05:55:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-22 05:55:04,971 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:04,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:04,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:55:04,973 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 05:55:04,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:04,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1748381794, now seen corresponding path program 1 times [2020-12-22 05:55:04,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:04,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564308242] [2020-12-22 05:55:04,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:05,159 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 05:55:05,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564308242] [2020-12-22 05:55:05,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:05,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:05,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252268916] [2020-12-22 05:55:05,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:05,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:05,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:05,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:05,165 INFO L87 Difference]: Start difference. First operand 9317 states and 17493 transitions. Second operand 4 states. [2020-12-22 05:55:06,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:06,767 INFO L93 Difference]: Finished difference Result 37030 states and 69518 transitions. [2020-12-22 05:55:06,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:06,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-12-22 05:55:06,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:06,918 INFO L225 Difference]: With dead ends: 37030 [2020-12-22 05:55:06,918 INFO L226 Difference]: Without dead ends: 27736 [2020-12-22 05:55:06,945 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 05:55:06,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27736 states. [2020-12-22 05:55:07,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27736 to 9332. [2020-12-22 05:55:07,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9332 states. [2020-12-22 05:55:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9332 states to 9332 states and 17508 transitions. [2020-12-22 05:55:07,620 INFO L78 Accepts]: Start accepts. Automaton has 9332 states and 17508 transitions. Word has length 59 [2020-12-22 05:55:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:07,621 INFO L481 AbstractCegarLoop]: Abstraction has 9332 states and 17508 transitions. [2020-12-22 05:55:07,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:07,621 INFO L276 IsEmpty]: Start isEmpty. Operand 9332 states and 17508 transitions. [2020-12-22 05:55:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 05:55:07,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:07,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:07,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:55:07,627 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 05:55:07,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:07,629 INFO L82 PathProgramCache]: Analyzing trace with hash -2018398128, now seen corresponding path program 1 times [2020-12-22 05:55:07,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:07,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773915056] [2020-12-22 05:55:07,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:07,755 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 05:55:07,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773915056] [2020-12-22 05:55:07,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:07,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 05:55:07,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373560809] [2020-12-22 05:55:07,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:55:07,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:07,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:55:07,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:55:07,759 INFO L87 Difference]: Start difference. First operand 9332 states and 17508 transitions. Second operand 3 states. [2020-12-22 05:55:08,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:08,711 INFO L93 Difference]: Finished difference Result 27807 states and 52187 transitions. [2020-12-22 05:55:08,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:55:08,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-22 05:55:08,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:08,767 INFO L225 Difference]: With dead ends: 27807 [2020-12-22 05:55:08,767 INFO L226 Difference]: Without dead ends: 18488 [2020-12-22 05:55:08,786 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 05:55:08,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18488 states. [2020-12-22 05:55:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18488 to 9298. [2020-12-22 05:55:09,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9298 states. [2020-12-22 05:55:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9298 states to 9298 states and 17440 transitions. [2020-12-22 05:55:09,161 INFO L78 Accepts]: Start accepts. Automaton has 9298 states and 17440 transitions. Word has length 61 [2020-12-22 05:55:09,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:09,162 INFO L481 AbstractCegarLoop]: Abstraction has 9298 states and 17440 transitions. [2020-12-22 05:55:09,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:55:09,162 INFO L276 IsEmpty]: Start isEmpty. Operand 9298 states and 17440 transitions. [2020-12-22 05:55:09,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 05:55:09,166 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:09,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:09,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:55:09,167 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 05:55:09,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:09,167 INFO L82 PathProgramCache]: Analyzing trace with hash -985787939, now seen corresponding path program 1 times [2020-12-22 05:55:09,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:09,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479550555] [2020-12-22 05:55:09,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:09,370 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 05:55:09,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479550555] [2020-12-22 05:55:09,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:09,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:09,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635271373] [2020-12-22 05:55:09,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:09,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:09,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:09,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:09,373 INFO L87 Difference]: Start difference. First operand 9298 states and 17440 transitions. Second operand 5 states. [2020-12-22 05:55:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:10,295 INFO L93 Difference]: Finished difference Result 22279 states and 41799 transitions. [2020-12-22 05:55:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:10,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2020-12-22 05:55:10,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:10,329 INFO L225 Difference]: With dead ends: 22279 [2020-12-22 05:55:10,329 INFO L226 Difference]: Without dead ends: 13000 [2020-12-22 05:55:10,343 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 05:55:10,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13000 states. [2020-12-22 05:55:10,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13000 to 9298. [2020-12-22 05:55:10,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9298 states. [2020-12-22 05:55:10,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9298 states to 9298 states and 17434 transitions. [2020-12-22 05:55:10,700 INFO L78 Accepts]: Start accepts. Automaton has 9298 states and 17434 transitions. Word has length 63 [2020-12-22 05:55:10,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:10,702 INFO L481 AbstractCegarLoop]: Abstraction has 9298 states and 17434 transitions. [2020-12-22 05:55:10,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:55:10,702 INFO L276 IsEmpty]: Start isEmpty. Operand 9298 states and 17434 transitions. [2020-12-22 05:55:10,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 05:55:10,708 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:10,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:10,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 05:55:10,709 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 05:55:10,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:10,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1199659895, now seen corresponding path program 1 times [2020-12-22 05:55:10,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:10,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134392451] [2020-12-22 05:55:10,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:10,832 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 05:55:10,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134392451] [2020-12-22 05:55:10,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:10,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:10,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189921034] [2020-12-22 05:55:10,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:10,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:10,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:10,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:10,837 INFO L87 Difference]: Start difference. First operand 9298 states and 17434 transitions. Second operand 4 states. [2020-12-22 05:55:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:12,402 INFO L93 Difference]: Finished difference Result 36972 states and 69371 transitions. [2020-12-22 05:55:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:12,405 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2020-12-22 05:55:12,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:12,481 INFO L225 Difference]: With dead ends: 36972 [2020-12-22 05:55:12,481 INFO L226 Difference]: Without dead ends: 27699 [2020-12-22 05:55:12,503 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 05:55:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27699 states. [2020-12-22 05:55:13,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27699 to 9302. [2020-12-22 05:55:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9302 states. [2020-12-22 05:55:13,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9302 states to 9302 states and 17437 transitions. [2020-12-22 05:55:13,068 INFO L78 Accepts]: Start accepts. Automaton has 9302 states and 17437 transitions. Word has length 65 [2020-12-22 05:55:13,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:13,069 INFO L481 AbstractCegarLoop]: Abstraction has 9302 states and 17437 transitions. [2020-12-22 05:55:13,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:13,069 INFO L276 IsEmpty]: Start isEmpty. Operand 9302 states and 17437 transitions. [2020-12-22 05:55:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 05:55:13,074 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:13,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:13,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 05:55:13,075 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 05:55:13,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:13,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1569150111, now seen corresponding path program 1 times [2020-12-22 05:55:13,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:13,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688781039] [2020-12-22 05:55:13,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:13,153 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 05:55:13,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688781039] [2020-12-22 05:55:13,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:13,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:13,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975130963] [2020-12-22 05:55:13,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:13,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:13,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:13,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:13,156 INFO L87 Difference]: Start difference. First operand 9302 states and 17437 transitions. Second operand 4 states. [2020-12-22 05:55:14,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:14,332 INFO L93 Difference]: Finished difference Result 36981 states and 69377 transitions. [2020-12-22 05:55:14,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:14,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-12-22 05:55:14,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:14,407 INFO L225 Difference]: With dead ends: 36981 [2020-12-22 05:55:14,408 INFO L226 Difference]: Without dead ends: 27704 [2020-12-22 05:55:14,426 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 05:55:14,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27704 states. [2020-12-22 05:55:15,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27704 to 9308. [2020-12-22 05:55:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9308 states. [2020-12-22 05:55:15,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9308 states to 9308 states and 17442 transitions. [2020-12-22 05:55:15,063 INFO L78 Accepts]: Start accepts. Automaton has 9308 states and 17442 transitions. Word has length 66 [2020-12-22 05:55:15,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:15,063 INFO L481 AbstractCegarLoop]: Abstraction has 9308 states and 17442 transitions. [2020-12-22 05:55:15,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:15,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9308 states and 17442 transitions. [2020-12-22 05:55:15,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 05:55:15,070 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:15,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:15,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 05:55:15,070 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 05:55:15,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:15,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1541711172, now seen corresponding path program 1 times [2020-12-22 05:55:15,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:15,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565166558] [2020-12-22 05:55:15,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:15,183 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 05:55:15,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565166558] [2020-12-22 05:55:15,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:15,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:15,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808968867] [2020-12-22 05:55:15,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:15,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:15,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:15,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:15,187 INFO L87 Difference]: Start difference. First operand 9308 states and 17442 transitions. Second operand 4 states. [2020-12-22 05:55:16,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:16,564 INFO L93 Difference]: Finished difference Result 36994 states and 69387 transitions. [2020-12-22 05:55:16,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:16,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-12-22 05:55:16,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:16,631 INFO L225 Difference]: With dead ends: 36994 [2020-12-22 05:55:16,631 INFO L226 Difference]: Without dead ends: 27711 [2020-12-22 05:55:16,646 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 05:55:16,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27711 states. [2020-12-22 05:55:17,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27711 to 9316. [2020-12-22 05:55:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9316 states. [2020-12-22 05:55:17,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9316 states to 9316 states and 17449 transitions. [2020-12-22 05:55:17,149 INFO L78 Accepts]: Start accepts. Automaton has 9316 states and 17449 transitions. Word has length 67 [2020-12-22 05:55:17,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:17,149 INFO L481 AbstractCegarLoop]: Abstraction has 9316 states and 17449 transitions. [2020-12-22 05:55:17,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 9316 states and 17449 transitions. [2020-12-22 05:55:17,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 05:55:17,162 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:17,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:17,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 05:55:17,163 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 05:55:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:17,163 INFO L82 PathProgramCache]: Analyzing trace with hash -729900858, now seen corresponding path program 1 times [2020-12-22 05:55:17,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:17,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687027393] [2020-12-22 05:55:17,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:17,251 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 05:55:17,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687027393] [2020-12-22 05:55:17,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:17,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:17,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357897580] [2020-12-22 05:55:17,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:17,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:17,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:17,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:17,254 INFO L87 Difference]: Start difference. First operand 9316 states and 17449 transitions. Second operand 5 states. [2020-12-22 05:55:18,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:18,611 INFO L93 Difference]: Finished difference Result 29765 states and 55792 transitions. [2020-12-22 05:55:18,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:55:18,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-12-22 05:55:18,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:18,651 INFO L225 Difference]: With dead ends: 29765 [2020-12-22 05:55:18,651 INFO L226 Difference]: Without dead ends: 20478 [2020-12-22 05:55:18,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:55:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20478 states. [2020-12-22 05:55:19,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20478 to 9302. [2020-12-22 05:55:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9302 states. [2020-12-22 05:55:19,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9302 states to 9302 states and 17423 transitions. [2020-12-22 05:55:19,299 INFO L78 Accepts]: Start accepts. Automaton has 9302 states and 17423 transitions. Word has length 68 [2020-12-22 05:55:19,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:19,299 INFO L481 AbstractCegarLoop]: Abstraction has 9302 states and 17423 transitions. [2020-12-22 05:55:19,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:55:19,299 INFO L276 IsEmpty]: Start isEmpty. Operand 9302 states and 17423 transitions. [2020-12-22 05:55:19,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 05:55:19,303 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:19,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:19,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 05:55:19,303 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 05:55:19,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:19,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1724455376, now seen corresponding path program 1 times [2020-12-22 05:55:19,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:19,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438768375] [2020-12-22 05:55:19,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:19,498 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 05:55:19,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438768375] [2020-12-22 05:55:19,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:19,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:19,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389526374] [2020-12-22 05:55:19,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:19,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:19,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:19,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:19,507 INFO L87 Difference]: Start difference. First operand 9302 states and 17423 transitions. Second operand 5 states. [2020-12-22 05:55:20,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:20,585 INFO L93 Difference]: Finished difference Result 29694 states and 55666 transitions. [2020-12-22 05:55:20,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:55:20,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-12-22 05:55:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:20,619 INFO L225 Difference]: With dead ends: 29694 [2020-12-22 05:55:20,620 INFO L226 Difference]: Without dead ends: 20452 [2020-12-22 05:55:20,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:55:20,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20452 states. [2020-12-22 05:55:21,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20452 to 9296. [2020-12-22 05:55:21,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9296 states. [2020-12-22 05:55:21,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9296 states to 9296 states and 17410 transitions. [2020-12-22 05:55:21,195 INFO L78 Accepts]: Start accepts. Automaton has 9296 states and 17410 transitions. Word has length 70 [2020-12-22 05:55:21,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:21,195 INFO L481 AbstractCegarLoop]: Abstraction has 9296 states and 17410 transitions. [2020-12-22 05:55:21,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:55:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 9296 states and 17410 transitions. [2020-12-22 05:55:21,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 05:55:21,200 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:21,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:21,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 05:55:21,200 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 05:55:21,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:21,201 INFO L82 PathProgramCache]: Analyzing trace with hash -172329361, now seen corresponding path program 1 times [2020-12-22 05:55:21,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:21,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793017812] [2020-12-22 05:55:21,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:21,270 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 05:55:21,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793017812] [2020-12-22 05:55:21,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:21,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:21,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061415510] [2020-12-22 05:55:21,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:21,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:21,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:21,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:21,273 INFO L87 Difference]: Start difference. First operand 9296 states and 17410 transitions. Second operand 4 states. [2020-12-22 05:55:22,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:22,207 INFO L93 Difference]: Finished difference Result 22280 states and 41746 transitions. [2020-12-22 05:55:22,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:22,207 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-12-22 05:55:22,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:22,227 INFO L225 Difference]: With dead ends: 22280 [2020-12-22 05:55:22,227 INFO L226 Difference]: Without dead ends: 13037 [2020-12-22 05:55:22,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 05:55:22,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13037 states. [2020-12-22 05:55:22,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13037 to 9296. [2020-12-22 05:55:22,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9296 states. [2020-12-22 05:55:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9296 states to 9296 states and 17402 transitions. [2020-12-22 05:55:22,840 INFO L78 Accepts]: Start accepts. Automaton has 9296 states and 17402 transitions. Word has length 72 [2020-12-22 05:55:22,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:22,840 INFO L481 AbstractCegarLoop]: Abstraction has 9296 states and 17402 transitions. [2020-12-22 05:55:22,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 9296 states and 17402 transitions. [2020-12-22 05:55:22,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 05:55:22,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:22,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:22,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 05:55:22,846 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 05:55:22,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:22,847 INFO L82 PathProgramCache]: Analyzing trace with hash -158757115, now seen corresponding path program 1 times [2020-12-22 05:55:22,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:22,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934700950] [2020-12-22 05:55:22,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:22,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:22,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934700950] [2020-12-22 05:55:22,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:22,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:55:22,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602740498] [2020-12-22 05:55:22,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:55:22,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:22,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:55:22,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:55:22,962 INFO L87 Difference]: Start difference. First operand 9296 states and 17402 transitions. Second operand 3 states. [2020-12-22 05:55:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:24,930 INFO L93 Difference]: Finished difference Result 25707 states and 48147 transitions. [2020-12-22 05:55:24,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:55:24,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-22 05:55:24,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:24,952 INFO L225 Difference]: With dead ends: 25707 [2020-12-22 05:55:24,952 INFO L226 Difference]: Without dead ends: 17361 [2020-12-22 05:55:24,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:55:24,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17361 states. [2020-12-22 05:55:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17361 to 17341. [2020-12-22 05:55:25,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17341 states. [2020-12-22 05:55:25,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17341 states to 17341 states and 32390 transitions. [2020-12-22 05:55:25,774 INFO L78 Accepts]: Start accepts. Automaton has 17341 states and 32390 transitions. Word has length 73 [2020-12-22 05:55:25,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:25,774 INFO L481 AbstractCegarLoop]: Abstraction has 17341 states and 32390 transitions. [2020-12-22 05:55:25,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:55:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 17341 states and 32390 transitions. [2020-12-22 05:55:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 05:55:25,778 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:25,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:25,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 05:55:25,778 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 05:55:25,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:25,779 INFO L82 PathProgramCache]: Analyzing trace with hash 697707184, now seen corresponding path program 1 times [2020-12-22 05:55:25,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:25,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234677391] [2020-12-22 05:55:25,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:25,850 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 05:55:25,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234677391] [2020-12-22 05:55:25,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:25,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:55:25,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002913071] [2020-12-22 05:55:25,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:55:25,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:25,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:55:25,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:55:25,852 INFO L87 Difference]: Start difference. First operand 17341 states and 32390 transitions. Second operand 3 states. [2020-12-22 05:55:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:28,194 INFO L93 Difference]: Finished difference Result 49113 states and 91743 transitions. [2020-12-22 05:55:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:55:28,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-22 05:55:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:28,240 INFO L225 Difference]: With dead ends: 49113 [2020-12-22 05:55:28,240 INFO L226 Difference]: Without dead ends: 33359 [2020-12-22 05:55:28,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:55:28,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33359 states. [2020-12-22 05:55:29,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33359 to 33339. [2020-12-22 05:55:29,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33339 states. [2020-12-22 05:55:29,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33339 states to 33339 states and 62116 transitions. [2020-12-22 05:55:29,589 INFO L78 Accepts]: Start accepts. Automaton has 33339 states and 62116 transitions. Word has length 74 [2020-12-22 05:55:29,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:29,589 INFO L481 AbstractCegarLoop]: Abstraction has 33339 states and 62116 transitions. [2020-12-22 05:55:29,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:55:29,589 INFO L276 IsEmpty]: Start isEmpty. Operand 33339 states and 62116 transitions. [2020-12-22 05:55:29,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 05:55:29,593 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:29,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:29,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 05:55:29,594 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 05:55:29,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:29,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1991399466, now seen corresponding path program 1 times [2020-12-22 05:55:29,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:29,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869680159] [2020-12-22 05:55:29,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:29,678 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 05:55:29,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869680159] [2020-12-22 05:55:29,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:29,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:55:29,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914279759] [2020-12-22 05:55:29,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:55:29,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:29,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:55:29,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:55:29,680 INFO L87 Difference]: Start difference. First operand 33339 states and 62116 transitions. Second operand 3 states. [2020-12-22 05:55:33,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:33,555 INFO L93 Difference]: Finished difference Result 95741 states and 178354 transitions. [2020-12-22 05:55:33,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:55:33,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 05:55:33,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:33,650 INFO L225 Difference]: With dead ends: 95741 [2020-12-22 05:55:33,651 INFO L226 Difference]: Without dead ends: 65155 [2020-12-22 05:55:33,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:55:33,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65155 states. [2020-12-22 05:55:36,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65155 to 65135. [2020-12-22 05:55:36,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65135 states. [2020-12-22 05:55:36,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65135 states to 65135 states and 121023 transitions. [2020-12-22 05:55:36,551 INFO L78 Accepts]: Start accepts. Automaton has 65135 states and 121023 transitions. Word has length 75 [2020-12-22 05:55:36,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:36,551 INFO L481 AbstractCegarLoop]: Abstraction has 65135 states and 121023 transitions. [2020-12-22 05:55:36,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:55:36,551 INFO L276 IsEmpty]: Start isEmpty. Operand 65135 states and 121023 transitions. [2020-12-22 05:55:36,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 05:55:36,555 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:36,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:36,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 05:55:36,556 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 05:55:36,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:36,557 INFO L82 PathProgramCache]: Analyzing trace with hash -340709963, now seen corresponding path program 1 times [2020-12-22 05:55:36,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:36,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866315553] [2020-12-22 05:55:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:36,626 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 05:55:36,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866315553] [2020-12-22 05:55:36,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:36,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:55:36,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004087860] [2020-12-22 05:55:36,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:55:36,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:36,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:55:36,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:55:36,628 INFO L87 Difference]: Start difference. First operand 65135 states and 121023 transitions. Second operand 3 states. [2020-12-22 05:55:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:42,689 INFO L93 Difference]: Finished difference Result 188597 states and 350321 transitions. [2020-12-22 05:55:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:55:42,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-22 05:55:42,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:42,907 INFO L225 Difference]: With dead ends: 188597 [2020-12-22 05:55:42,907 INFO L226 Difference]: Without dead ends: 128331 [2020-12-22 05:55:42,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:55:43,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128331 states. [2020-12-22 05:55:48,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128331 to 128311. [2020-12-22 05:55:48,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128311 states. [2020-12-22 05:55:48,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128311 states to 128311 states and 237702 transitions. [2020-12-22 05:55:48,754 INFO L78 Accepts]: Start accepts. Automaton has 128311 states and 237702 transitions. Word has length 76 [2020-12-22 05:55:48,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:48,754 INFO L481 AbstractCegarLoop]: Abstraction has 128311 states and 237702 transitions. [2020-12-22 05:55:48,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:55:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 128311 states and 237702 transitions. [2020-12-22 05:55:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 05:55:48,758 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:48,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:48,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 05:55:48,759 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 05:55:48,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:48,760 INFO L82 PathProgramCache]: Analyzing trace with hash 891444559, now seen corresponding path program 1 times [2020-12-22 05:55:48,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:48,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19777429] [2020-12-22 05:55:48,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:49,060 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 05:55:49,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19777429] [2020-12-22 05:55:49,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:49,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:55:49,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643819116] [2020-12-22 05:55:49,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:55:49,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:49,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:55:49,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:55:49,065 INFO L87 Difference]: Start difference. First operand 128311 states and 237702 transitions. Second operand 3 states. [2020-12-22 05:55:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:59,914 INFO L93 Difference]: Finished difference Result 373477 states and 691652 transitions. [2020-12-22 05:55:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:55:59,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-22 05:55:59,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:00,647 INFO L225 Difference]: With dead ends: 373477 [2020-12-22 05:56:00,647 INFO L226 Difference]: Without dead ends: 253835 [2020-12-22 05:56:00,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:56:01,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253835 states.