/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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:55:03,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:55:03,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:55:03,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:55:03,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:55:03,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:55:03,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:55:03,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:55:03,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:55:03,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:55:03,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:55:03,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:55:03,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:55:03,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:55:03,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:55:03,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:55:03,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:55:03,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:55:03,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:55:03,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:55:03,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:55:03,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:55:03,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:55:03,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:55:03,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:55:03,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:55:03,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:55:03,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:55:03,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:55:03,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:55:03,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:55:03,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:55:03,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:55:03,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:55:03,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:55:03,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:55:03,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:55:03,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:55:03,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:55:03,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:55:03,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:55:03,939 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:55:03,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:55:03,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:55:03,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:55:03,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:55:03,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:55:03,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:55:03,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:55:03,943 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:55:03,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:55:03,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:55:03,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:55:03,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:55:03,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:55:03,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:55:03,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:55:03,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:55:03,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:55:03,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:55:03,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:55:03,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:55:03,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:55:04,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:55:04,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:55:04,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:55:04,424 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:55:04,425 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:55:04,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c [2020-12-22 05:55:04,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98e3d568/2b026723e50b46a2976bd5e4a92148ef/FLAGbb3a71ce9 [2020-12-22 05:55:05,411 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:55:05,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c [2020-12-22 05:55:05,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98e3d568/2b026723e50b46a2976bd5e4a92148ef/FLAGbb3a71ce9 [2020-12-22 05:55:05,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98e3d568/2b026723e50b46a2976bd5e4a92148ef [2020-12-22 05:55:05,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:55:05,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:55:05,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:55:05,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:55:05,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:55:05,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:55:05" (1/1) ... [2020-12-22 05:55:05,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42040e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:05, skipping insertion in model container [2020-12-22 05:55:05,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:55:05" (1/1) ... [2020-12-22 05:55:05,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:55:05,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:55:05,748 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_product32.cil.c[1222,1235] [2020-12-22 05:55:06,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:55:06,336 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:55:06,357 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_product32.cil.c[1222,1235] [2020-12-22 05:55:06,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:55:06,608 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:55:06,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06 WrapperNode [2020-12-22 05:55:06,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:55:06,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:55:06,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:55:06,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:55:06,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (1/1) ... [2020-12-22 05:55:06,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (1/1) ... [2020-12-22 05:55:08,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:55:08,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:55:08,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:55:08,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:55:08,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (1/1) ... [2020-12-22 05:55:08,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (1/1) ... [2020-12-22 05:55:08,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (1/1) ... [2020-12-22 05:55:08,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (1/1) ... [2020-12-22 05:55:08,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (1/1) ... [2020-12-22 05:55:09,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (1/1) ... [2020-12-22 05:55:09,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (1/1) ... [2020-12-22 05:55:09,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:55:09,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:55:09,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:55:09,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:55:09,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (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 05:55:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:55:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:55:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:55:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:56:05,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:56:05,621 INFO L299 CfgBuilder]: Removed 4171 assume(true) statements. [2020-12-22 05:56:05,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:56:05 BoogieIcfgContainer [2020-12-22 05:56:05,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:56:05,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:56:05,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:56:05,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:56:05,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:55:05" (1/3) ... [2020-12-22 05:56:05,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5806cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:56:05, skipping insertion in model container [2020-12-22 05:56:05,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:55:06" (2/3) ... [2020-12-22 05:56:05,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5806cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:56:05, skipping insertion in model container [2020-12-22 05:56:05,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:56:05" (3/3) ... [2020-12-22 05:56:05,649 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product32.cil.c [2020-12-22 05:56:05,656 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:56:05,671 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 05:56:05,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 05:56:05,781 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:56:05,781 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:56:05,781 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:56:05,781 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:56:05,781 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:56:05,782 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:56:05,782 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:56:05,782 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:56:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 18226 states. [2020-12-22 05:56:06,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 05:56:06,031 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:06,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:06,033 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 05:56:06,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:06,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1681239427, now seen corresponding path program 1 times [2020-12-22 05:56:06,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:06,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851579273] [2020-12-22 05:56:06,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:56:06,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851579273] [2020-12-22 05:56:06,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:06,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:56:06,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371336437] [2020-12-22 05:56:06,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:56:06,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:06,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:56:06,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:56:06,569 INFO L87 Difference]: Start difference. First operand 18226 states. Second operand 5 states. [2020-12-22 05:56:08,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:08,355 INFO L93 Difference]: Finished difference Result 43744 states and 82536 transitions. [2020-12-22 05:56:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:56:08,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-22 05:56:08,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:08,564 INFO L225 Difference]: With dead ends: 43744 [2020-12-22 05:56:08,564 INFO L226 Difference]: Without dead ends: 25522 [2020-12-22 05:56:08,611 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 05:56:08,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25522 states. [2020-12-22 05:56:09,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25522 to 18222. [2020-12-22 05:56:09,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18222 states. [2020-12-22 05:56:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18222 states to 18222 states and 34248 transitions. [2020-12-22 05:56:10,265 INFO L78 Accepts]: Start accepts. Automaton has 18222 states and 34248 transitions. Word has length 41 [2020-12-22 05:56:10,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:10,266 INFO L481 AbstractCegarLoop]: Abstraction has 18222 states and 34248 transitions. [2020-12-22 05:56:10,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:56:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 18222 states and 34248 transitions. [2020-12-22 05:56:10,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 05:56:10,270 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:10,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:10,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:56:10,272 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 05:56:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:10,274 INFO L82 PathProgramCache]: Analyzing trace with hash -324700491, now seen corresponding path program 1 times [2020-12-22 05:56:10,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:10,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270264373] [2020-12-22 05:56:10,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:10,471 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 05:56:10,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270264373] [2020-12-22 05:56:10,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:10,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:56:10,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276942432] [2020-12-22 05:56:10,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:56:10,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:10,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:56:10,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:56:10,475 INFO L87 Difference]: Start difference. First operand 18222 states and 34248 transitions. Second operand 4 states. [2020-12-22 05:56:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:13,381 INFO L93 Difference]: Finished difference Result 72650 states and 136538 transitions. [2020-12-22 05:56:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:56:13,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-12-22 05:56:13,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:13,634 INFO L225 Difference]: With dead ends: 72650 [2020-12-22 05:56:13,634 INFO L226 Difference]: Without dead ends: 54451 [2020-12-22 05:56:13,695 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 05:56:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54451 states. [2020-12-22 05:56:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54451 to 18237. [2020-12-22 05:56:14,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18237 states. [2020-12-22 05:56:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18237 states to 18237 states and 34263 transitions. [2020-12-22 05:56:14,946 INFO L78 Accepts]: Start accepts. Automaton has 18237 states and 34263 transitions. Word has length 43 [2020-12-22 05:56:14,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:14,947 INFO L481 AbstractCegarLoop]: Abstraction has 18237 states and 34263 transitions. [2020-12-22 05:56:14,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:56:14,947 INFO L276 IsEmpty]: Start isEmpty. Operand 18237 states and 34263 transitions. [2020-12-22 05:56:14,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 05:56:14,955 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:14,955 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] [2020-12-22 05:56:14,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:56:14,956 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 05:56:14,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:14,958 INFO L82 PathProgramCache]: Analyzing trace with hash 231379619, now seen corresponding path program 1 times [2020-12-22 05:56:14,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:14,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009618224] [2020-12-22 05:56:14,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:15,111 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 05:56:15,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009618224] [2020-12-22 05:56:15,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:15,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 05:56:15,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169020698] [2020-12-22 05:56:15,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:56:15,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:15,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:56:15,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:15,115 INFO L87 Difference]: Start difference. First operand 18237 states and 34263 transitions. Second operand 3 states. [2020-12-22 05:56:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:16,643 INFO L93 Difference]: Finished difference Result 54522 states and 102452 transitions. [2020-12-22 05:56:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:56:16,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-22 05:56:16,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:16,803 INFO L225 Difference]: With dead ends: 54522 [2020-12-22 05:56:16,803 INFO L226 Difference]: Without dead ends: 36298 [2020-12-22 05:56:16,853 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 05:56:16,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36298 states. [2020-12-22 05:56:17,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36298 to 18203. [2020-12-22 05:56:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18203 states. [2020-12-22 05:56:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18203 states to 18203 states and 34195 transitions. [2020-12-22 05:56:18,056 INFO L78 Accepts]: Start accepts. Automaton has 18203 states and 34195 transitions. Word has length 45 [2020-12-22 05:56:18,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:18,065 INFO L481 AbstractCegarLoop]: Abstraction has 18203 states and 34195 transitions. [2020-12-22 05:56:18,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:56:18,066 INFO L276 IsEmpty]: Start isEmpty. Operand 18203 states and 34195 transitions. [2020-12-22 05:56:18,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 05:56:18,069 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:18,069 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] [2020-12-22 05:56:18,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:56:18,070 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 05:56:18,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:18,071 INFO L82 PathProgramCache]: Analyzing trace with hash 2036182576, now seen corresponding path program 1 times [2020-12-22 05:56:18,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:18,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830190608] [2020-12-22 05:56:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:18,240 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 05:56:18,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830190608] [2020-12-22 05:56:18,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:18,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:56:18,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858824109] [2020-12-22 05:56:18,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:56:18,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:18,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:56:18,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:56:18,246 INFO L87 Difference]: Start difference. First operand 18203 states and 34195 transitions. Second operand 5 states. [2020-12-22 05:56:19,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:19,965 INFO L93 Difference]: Finished difference Result 43651 states and 82011 transitions. [2020-12-22 05:56:19,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:56:19,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-12-22 05:56:19,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:20,037 INFO L225 Difference]: With dead ends: 43651 [2020-12-22 05:56:20,037 INFO L226 Difference]: Without dead ends: 25467 [2020-12-22 05:56:20,064 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 05:56:20,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25467 states. [2020-12-22 05:56:20,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25467 to 18203. [2020-12-22 05:56:20,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18203 states. [2020-12-22 05:56:20,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18203 states to 18203 states and 34189 transitions. [2020-12-22 05:56:20,928 INFO L78 Accepts]: Start accepts. Automaton has 18203 states and 34189 transitions. Word has length 47 [2020-12-22 05:56:20,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:20,928 INFO L481 AbstractCegarLoop]: Abstraction has 18203 states and 34189 transitions. [2020-12-22 05:56:20,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:56:20,928 INFO L276 IsEmpty]: Start isEmpty. Operand 18203 states and 34189 transitions. [2020-12-22 05:56:20,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 05:56:20,930 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:20,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:20,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 05:56:20,931 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 05:56:20,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:20,932 INFO L82 PathProgramCache]: Analyzing trace with hash 109800394, now seen corresponding path program 1 times [2020-12-22 05:56:20,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:20,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716636077] [2020-12-22 05:56:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:21,033 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 05:56:21,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716636077] [2020-12-22 05:56:21,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:21,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:56:21,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451276817] [2020-12-22 05:56:21,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:56:21,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:21,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:56:21,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:56:21,037 INFO L87 Difference]: Start difference. First operand 18203 states and 34189 transitions. Second operand 4 states. [2020-12-22 05:56:23,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:23,157 INFO L93 Difference]: Finished difference Result 72592 states and 136391 transitions. [2020-12-22 05:56:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:56:23,160 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-12-22 05:56:23,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:23,265 INFO L225 Difference]: With dead ends: 72592 [2020-12-22 05:56:23,266 INFO L226 Difference]: Without dead ends: 54414 [2020-12-22 05:56:23,298 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 05:56:23,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54414 states. [2020-12-22 05:56:24,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54414 to 18207. [2020-12-22 05:56:24,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18207 states. [2020-12-22 05:56:24,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18207 states to 18207 states and 34192 transitions. [2020-12-22 05:56:24,290 INFO L78 Accepts]: Start accepts. Automaton has 18207 states and 34192 transitions. Word has length 49 [2020-12-22 05:56:24,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:24,292 INFO L481 AbstractCegarLoop]: Abstraction has 18207 states and 34192 transitions. [2020-12-22 05:56:24,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:56:24,292 INFO L276 IsEmpty]: Start isEmpty. Operand 18207 states and 34192 transitions. [2020-12-22 05:56:24,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 05:56:24,296 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:24,296 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] [2020-12-22 05:56:24,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 05:56:24,297 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 05:56:24,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:24,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1520185420, now seen corresponding path program 1 times [2020-12-22 05:56:24,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:24,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293856477] [2020-12-22 05:56:24,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:24,403 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 05:56:24,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293856477] [2020-12-22 05:56:24,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:24,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:56:24,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532513029] [2020-12-22 05:56:24,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:56:24,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:24,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:56:24,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:56:24,407 INFO L87 Difference]: Start difference. First operand 18207 states and 34192 transitions. Second operand 4 states. [2020-12-22 05:56:26,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:26,549 INFO L93 Difference]: Finished difference Result 72601 states and 136397 transitions. [2020-12-22 05:56:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:56:26,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-12-22 05:56:26,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:26,649 INFO L225 Difference]: With dead ends: 72601 [2020-12-22 05:56:26,651 INFO L226 Difference]: Without dead ends: 54419 [2020-12-22 05:56:26,675 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 05:56:26,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54419 states. [2020-12-22 05:56:27,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54419 to 18213. [2020-12-22 05:56:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18213 states. [2020-12-22 05:56:27,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18213 states to 18213 states and 34197 transitions. [2020-12-22 05:56:27,817 INFO L78 Accepts]: Start accepts. Automaton has 18213 states and 34197 transitions. Word has length 50 [2020-12-22 05:56:27,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:27,817 INFO L481 AbstractCegarLoop]: Abstraction has 18213 states and 34197 transitions. [2020-12-22 05:56:27,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:56:27,817 INFO L276 IsEmpty]: Start isEmpty. Operand 18213 states and 34197 transitions. [2020-12-22 05:56:27,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 05:56:27,819 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:27,820 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] [2020-12-22 05:56:27,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 05:56:27,820 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 05:56:27,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:27,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1456379151, now seen corresponding path program 1 times [2020-12-22 05:56:27,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:27,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198277348] [2020-12-22 05:56:27,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:28,028 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 05:56:28,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198277348] [2020-12-22 05:56:28,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:28,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:56:28,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512742504] [2020-12-22 05:56:28,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:56:28,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:28,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:56:28,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:56:28,031 INFO L87 Difference]: Start difference. First operand 18213 states and 34197 transitions. Second operand 4 states. [2020-12-22 05:56:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:30,114 INFO L93 Difference]: Finished difference Result 72614 states and 136407 transitions. [2020-12-22 05:56:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:56:30,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-12-22 05:56:30,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:30,192 INFO L225 Difference]: With dead ends: 72614 [2020-12-22 05:56:30,192 INFO L226 Difference]: Without dead ends: 54426 [2020-12-22 05:56:30,226 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 05:56:30,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54426 states. [2020-12-22 05:56:31,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54426 to 18221. [2020-12-22 05:56:31,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18221 states. [2020-12-22 05:56:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18221 states to 18221 states and 34204 transitions. [2020-12-22 05:56:31,443 INFO L78 Accepts]: Start accepts. Automaton has 18221 states and 34204 transitions. Word has length 51 [2020-12-22 05:56:31,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:31,443 INFO L481 AbstractCegarLoop]: Abstraction has 18221 states and 34204 transitions. [2020-12-22 05:56:31,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:56:31,443 INFO L276 IsEmpty]: Start isEmpty. Operand 18221 states and 34204 transitions. [2020-12-22 05:56:31,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 05:56:31,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:31,446 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] [2020-12-22 05:56:31,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 05:56:31,446 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 05:56:31,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:31,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1207117593, now seen corresponding path program 1 times [2020-12-22 05:56:31,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:31,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270076589] [2020-12-22 05:56:31,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:31,516 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 05:56:31,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270076589] [2020-12-22 05:56:31,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:31,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:56:31,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071877931] [2020-12-22 05:56:31,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:56:31,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:31,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:56:31,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:56:31,518 INFO L87 Difference]: Start difference. First operand 18221 states and 34204 transitions. Second operand 5 states. [2020-12-22 05:56:33,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:33,503 INFO L93 Difference]: Finished difference Result 58261 states and 109408 transitions. [2020-12-22 05:56:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:56:33,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-12-22 05:56:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:33,556 INFO L225 Difference]: With dead ends: 58261 [2020-12-22 05:56:33,557 INFO L226 Difference]: Without dead ends: 40069 [2020-12-22 05:56:33,577 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 05:56:33,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40069 states. [2020-12-22 05:56:34,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40069 to 18207. [2020-12-22 05:56:34,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18207 states. [2020-12-22 05:56:34,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18207 states to 18207 states and 34178 transitions. [2020-12-22 05:56:34,536 INFO L78 Accepts]: Start accepts. Automaton has 18207 states and 34178 transitions. Word has length 52 [2020-12-22 05:56:34,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:34,536 INFO L481 AbstractCegarLoop]: Abstraction has 18207 states and 34178 transitions. [2020-12-22 05:56:34,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:56:34,536 INFO L276 IsEmpty]: Start isEmpty. Operand 18207 states and 34178 transitions. [2020-12-22 05:56:34,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 05:56:34,538 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:34,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:34,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 05:56:34,539 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 05:56:34,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:34,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1608842275, now seen corresponding path program 1 times [2020-12-22 05:56:34,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:34,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775569699] [2020-12-22 05:56:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:34,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:56:34,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775569699] [2020-12-22 05:56:34,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:34,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:56:34,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134747120] [2020-12-22 05:56:34,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:56:34,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:34,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:56:34,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:56:34,615 INFO L87 Difference]: Start difference. First operand 18207 states and 34178 transitions. Second operand 5 states. [2020-12-22 05:56:36,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:36,611 INFO L93 Difference]: Finished difference Result 58190 states and 109282 transitions. [2020-12-22 05:56:36,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:56:36,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-12-22 05:56:36,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:36,665 INFO L225 Difference]: With dead ends: 58190 [2020-12-22 05:56:36,665 INFO L226 Difference]: Without dead ends: 40043 [2020-12-22 05:56:36,684 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 05:56:36,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40043 states. [2020-12-22 05:56:37,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40043 to 18201. [2020-12-22 05:56:37,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18201 states. [2020-12-22 05:56:37,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18201 states to 18201 states and 34165 transitions. [2020-12-22 05:56:37,596 INFO L78 Accepts]: Start accepts. Automaton has 18201 states and 34165 transitions. Word has length 54 [2020-12-22 05:56:37,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:37,597 INFO L481 AbstractCegarLoop]: Abstraction has 18201 states and 34165 transitions. [2020-12-22 05:56:37,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:56:37,597 INFO L276 IsEmpty]: Start isEmpty. Operand 18201 states and 34165 transitions. [2020-12-22 05:56:37,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 05:56:37,599 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:37,599 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] [2020-12-22 05:56:37,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 05:56:37,599 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 05:56:37,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:37,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1450608958, now seen corresponding path program 1 times [2020-12-22 05:56:37,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:37,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172169691] [2020-12-22 05:56:37,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:37,663 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 05:56:37,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172169691] [2020-12-22 05:56:37,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:37,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:56:37,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254988527] [2020-12-22 05:56:37,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:56:37,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:37,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:56:37,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:56:37,665 INFO L87 Difference]: Start difference. First operand 18201 states and 34165 transitions. Second operand 4 states. [2020-12-22 05:56:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:39,309 INFO L93 Difference]: Finished difference Result 43652 states and 81958 transitions. [2020-12-22 05:56:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:56:39,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-12-22 05:56:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:39,337 INFO L225 Difference]: With dead ends: 43652 [2020-12-22 05:56:39,338 INFO L226 Difference]: Without dead ends: 25504 [2020-12-22 05:56:39,350 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 05:56:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25504 states. [2020-12-22 05:56:40,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25504 to 18201. [2020-12-22 05:56:40,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18201 states. [2020-12-22 05:56:40,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18201 states to 18201 states and 34157 transitions. [2020-12-22 05:56:40,095 INFO L78 Accepts]: Start accepts. Automaton has 18201 states and 34157 transitions. Word has length 56 [2020-12-22 05:56:40,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:40,095 INFO L481 AbstractCegarLoop]: Abstraction has 18201 states and 34157 transitions. [2020-12-22 05:56:40,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:56:40,096 INFO L276 IsEmpty]: Start isEmpty. Operand 18201 states and 34157 transitions. [2020-12-22 05:56:40,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 05:56:40,098 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:40,098 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 05:56:40,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 05:56:40,098 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 05:56:40,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:40,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1029208920, now seen corresponding path program 1 times [2020-12-22 05:56:40,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:40,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121495344] [2020-12-22 05:56:40,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:40,219 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 05:56:40,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121495344] [2020-12-22 05:56:40,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:40,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:56:40,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640466593] [2020-12-22 05:56:40,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:56:40,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:40,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:56:40,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:40,222 INFO L87 Difference]: Start difference. First operand 18201 states and 34157 transitions. Second operand 3 states. [2020-12-22 05:56:42,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:42,880 INFO L93 Difference]: Finished difference Result 48691 states and 91453 transitions. [2020-12-22 05:56:42,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:56:42,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-12-22 05:56:42,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:42,922 INFO L225 Difference]: With dead ends: 48691 [2020-12-22 05:56:42,922 INFO L226 Difference]: Without dead ends: 34005 [2020-12-22 05:56:42,935 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 05:56:42,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34005 states. [2020-12-22 05:56:44,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34005 to 29033. [2020-12-22 05:56:44,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29033 states. [2020-12-22 05:56:44,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29033 states to 29033 states and 54457 transitions. [2020-12-22 05:56:44,162 INFO L78 Accepts]: Start accepts. Automaton has 29033 states and 54457 transitions. Word has length 57 [2020-12-22 05:56:44,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:44,162 INFO L481 AbstractCegarLoop]: Abstraction has 29033 states and 54457 transitions. [2020-12-22 05:56:44,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:56:44,163 INFO L276 IsEmpty]: Start isEmpty. Operand 29033 states and 54457 transitions. [2020-12-22 05:56:44,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 05:56:44,168 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:44,168 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 05:56:44,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 05:56:44,169 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 05:56:44,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:44,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1310947592, now seen corresponding path program 1 times [2020-12-22 05:56:44,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:44,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779742724] [2020-12-22 05:56:44,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:44,260 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 05:56:44,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779742724] [2020-12-22 05:56:44,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:44,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:56:44,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039890530] [2020-12-22 05:56:44,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:56:44,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:44,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:56:44,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:56:44,262 INFO L87 Difference]: Start difference. First operand 29033 states and 54457 transitions. Second operand 5 states. [2020-12-22 05:56:44,418 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-22 05:56:46,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:46,661 INFO L93 Difference]: Finished difference Result 68982 states and 128720 transitions. [2020-12-22 05:56:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:56:46,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-12-22 05:56:46,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:46,713 INFO L225 Difference]: With dead ends: 68982 [2020-12-22 05:56:46,714 INFO L226 Difference]: Without dead ends: 41222 [2020-12-22 05:56:46,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:56:46,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41222 states. [2020-12-22 05:56:48,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41222 to 28176. [2020-12-22 05:56:48,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28176 states. [2020-12-22 05:56:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28176 states to 28176 states and 52470 transitions. [2020-12-22 05:56:48,206 INFO L78 Accepts]: Start accepts. Automaton has 28176 states and 52470 transitions. Word has length 76 [2020-12-22 05:56:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:48,206 INFO L481 AbstractCegarLoop]: Abstraction has 28176 states and 52470 transitions. [2020-12-22 05:56:48,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:56:48,206 INFO L276 IsEmpty]: Start isEmpty. Operand 28176 states and 52470 transitions. [2020-12-22 05:56:48,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 05:56:48,211 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:48,211 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 05:56:48,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 05:56:48,211 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 05:56:48,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:48,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1950484030, now seen corresponding path program 1 times [2020-12-22 05:56:48,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:48,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014539808] [2020-12-22 05:56:48,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:48,331 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 05:56:48,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014539808] [2020-12-22 05:56:48,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:48,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:56:48,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424423282] [2020-12-22 05:56:48,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:56:48,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:48,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:56:48,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:56:48,334 INFO L87 Difference]: Start difference. First operand 28176 states and 52470 transitions. Second operand 6 states. [2020-12-22 05:57:51,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:57:51,930 INFO L93 Difference]: Finished difference Result 273984 states and 507909 transitions. [2020-12-22 05:57:51,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 05:57:51,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-12-22 05:57:51,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:57:52,579 INFO L225 Difference]: With dead ends: 273984 [2020-12-22 05:57:52,579 INFO L226 Difference]: Without dead ends: 245909 [2020-12-22 05:57:52,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-12-22 05:57:52,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245909 states. [2020-12-22 05:57:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245909 to 41533. [2020-12-22 05:57:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41533 states. [2020-12-22 05:57:56,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41533 states to 41533 states and 77303 transitions. [2020-12-22 05:57:56,532 INFO L78 Accepts]: Start accepts. Automaton has 41533 states and 77303 transitions. Word has length 77 [2020-12-22 05:57:56,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:57:56,532 INFO L481 AbstractCegarLoop]: Abstraction has 41533 states and 77303 transitions. [2020-12-22 05:57:56,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:57:56,533 INFO L276 IsEmpty]: Start isEmpty. Operand 41533 states and 77303 transitions. [2020-12-22 05:57:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 05:57:56,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:57:56,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:57:56,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 05:57:56,537 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 05:57:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:57:56,538 INFO L82 PathProgramCache]: Analyzing trace with hash 643734866, now seen corresponding path program 1 times [2020-12-22 05:57:56,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:57:56,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172638289] [2020-12-22 05:57:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:57:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:57:56,667 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 05:57:56,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172638289] [2020-12-22 05:57:56,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:57:56,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:57:56,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923084561] [2020-12-22 05:57:56,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:57:56,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:57:56,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:57:56,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:57:56,670 INFO L87 Difference]: Start difference. First operand 41533 states and 77303 transitions. Second operand 6 states.