/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:51:07,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:51:07,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:51:07,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:51:07,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:51:07,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:51:07,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:51:07,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:51:07,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:51:07,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:51:07,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:51:07,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:51:07,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:51:07,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:51:07,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:51:07,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:51:07,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:51:07,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:51:07,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:51:07,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:51:07,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:51:07,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:51:07,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:51:07,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:51:07,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:51:07,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:51:07,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:51:07,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:51:07,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:51:07,988 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:51:07,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:51:07,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:51:07,989 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:51:07,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:51:07,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:51:07,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:51:07,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:51:07,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:51:07,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:51:07,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:51:07,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:51:07,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:51:07,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:51:07,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:51:07,992 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:51:07,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:51:07,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:51:07,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:51:07,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:51:07,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:51:07,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:51:07,993 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:51:08,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:51:08,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:51:08,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:51:08,292 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:51:08,292 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:51:08,293 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-07-17 13:51:08,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b776e59c6/f43f7c7586334395b3a1548144dbb980/FLAGd8a91e9c4 [2020-07-17 13:51:09,005 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:51:09,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-07-17 13:51:09,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b776e59c6/f43f7c7586334395b3a1548144dbb980/FLAGd8a91e9c4 [2020-07-17 13:51:09,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b776e59c6/f43f7c7586334395b3a1548144dbb980 [2020-07-17 13:51:09,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:51:09,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:51:09,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:51:09,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:51:09,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:51:09,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:51:09" (1/1) ... [2020-07-17 13:51:09,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@890fe98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:09, skipping insertion in model container [2020-07-17 13:51:09,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:51:09" (1/1) ... [2020-07-17 13:51:09,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:51:09,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:51:09,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:51:09,878 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:51:10,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:51:10,067 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:51:10,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10 WrapperNode [2020-07-17 13:51:10,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:51:10,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:51:10,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:51:10,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:51:10,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10" (1/1) ... [2020-07-17 13:51:10,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10" (1/1) ... [2020-07-17 13:51:10,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10" (1/1) ... [2020-07-17 13:51:10,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10" (1/1) ... [2020-07-17 13:51:10,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10" (1/1) ... [2020-07-17 13:51:10,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10" (1/1) ... [2020-07-17 13:51:10,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10" (1/1) ... [2020-07-17 13:51:10,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:51:10,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:51:10,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:51:10,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:51:10,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10" (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 [2020-07-17 13:51:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:51:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:51:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-17 13:51:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:51:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-17 13:51:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:51:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:51:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 13:51:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:51:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:51:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:51:11,616 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:51:11,616 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 13:51:11,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:51:11 BoogieIcfgContainer [2020-07-17 13:51:11,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:51:11,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:51:11,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:51:11,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:51:11,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:51:09" (1/3) ... [2020-07-17 13:51:11,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116f1e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:51:11, skipping insertion in model container [2020-07-17 13:51:11,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:51:10" (2/3) ... [2020-07-17 13:51:11,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116f1e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:51:11, skipping insertion in model container [2020-07-17 13:51:11,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:51:11" (3/3) ... [2020-07-17 13:51:11,634 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label03.c [2020-07-17 13:51:11,645 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:51:11,654 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:51:11,669 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:51:11,692 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:51:11,692 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:51:11,693 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:51:11,693 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:51:11,693 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:51:11,693 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:51:11,694 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:51:11,694 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:51:11,719 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-07-17 13:51:11,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-17 13:51:11,745 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:51:11,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:51:11,747 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:51:11,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:51:11,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1547939106, now seen corresponding path program 1 times [2020-07-17 13:51:11,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:51:11,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162710987] [2020-07-17 13:51:11,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:51:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:51:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:51:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:51:12,551 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:51:12,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162710987] [2020-07-17 13:51:12,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:51:12,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:51:12,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431612536] [2020-07-17 13:51:12,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:51:12,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:51:12,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:51:12,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:51:12,583 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 5 states. [2020-07-17 13:51:15,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:51:15,783 INFO L93 Difference]: Finished difference Result 1431 states and 2025 transitions. [2020-07-17 13:51:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 13:51:15,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-07-17 13:51:15,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:51:15,812 INFO L225 Difference]: With dead ends: 1431 [2020-07-17 13:51:15,813 INFO L226 Difference]: Without dead ends: 848 [2020-07-17 13:51:15,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:51:15,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-07-17 13:51:16,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 775. [2020-07-17 13:51:16,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 775 states. [2020-07-17 13:51:16,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 942 transitions. [2020-07-17 13:51:16,016 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 942 transitions. Word has length 155 [2020-07-17 13:51:16,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:51:16,017 INFO L479 AbstractCegarLoop]: Abstraction has 775 states and 942 transitions. [2020-07-17 13:51:16,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:51:16,018 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 942 transitions. [2020-07-17 13:51:16,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-17 13:51:16,025 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:51:16,025 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:51:16,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:51:16,026 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:51:16,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:51:16,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1451102411, now seen corresponding path program 1 times [2020-07-17 13:51:16,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:51:16,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483460624] [2020-07-17 13:51:16,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:51:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:51:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:51:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:51:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:51:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:51:17,353 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 13:51:17,536 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 13:51:17,876 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 13:51:18,294 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-07-17 13:51:18,564 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 13:51:18,826 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 13:51:19,118 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 13:51:19,664 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-07-17 13:51:19,988 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 13:51:20,337 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 13:51:20,721 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 13:51:21,458 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 13:51:22,165 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2020-07-17 13:51:22,946 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 13:51:23,726 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-07-17 13:51:24,196 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-17 13:51:25,046 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-07-17 13:51:25,548 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 13:51:26,078 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-07-17 13:51:27,027 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-07-17 13:51:27,892 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2020-07-17 13:51:28,767 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 13:51:29,700 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 13:51:30,276 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-07-17 13:51:31,282 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 13:51:32,332 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 13:51:33,391 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 13:51:34,486 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 13:51:35,164 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-17 13:51:35,864 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 13:51:37,075 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 13:51:37,826 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 13:51:39,084 WARN L193 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 13:51:40,330 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 13:51:41,614 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 13:51:42,408 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-07-17 13:51:43,236 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-17 13:51:44,621 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-07-17 13:51:46,397 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2020-07-17 13:51:47,705 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 13:51:49,045 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-07-17 13:51:49,902 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-17 13:51:50,768 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 13:51:52,218 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-07-17 13:51:53,731 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-07-17 13:51:55,157 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-07-17 13:51:57,084 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2020-07-17 13:51:58,522 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2020-07-17 13:51:59,985 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 114 DAG size of output: 109 [2020-07-17 13:52:01,486 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-07-17 13:52:03,004 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-07-17 13:52:04,461 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-07-17 13:52:06,408 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-07-17 13:52:07,763 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2020-07-17 13:52:09,079 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 13:52:10,374 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 13:52:11,846 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-07-17 13:52:13,222 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 13:52:15,241 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 13:52:16,707 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 13:52:18,151 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 13:52:19,599 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 13:52:21,046 WARN L193 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 13:52:22,500 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-07-17 13:52:24,244 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 110 DAG size of output: 100 [2020-07-17 13:52:25,509 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 13:52:26,757 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 13:52:28,366 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 102 DAG size of output: 99 [2020-07-17 13:52:29,484 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-07-17 13:52:30,476 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-07-17 13:52:31,258 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-07-17 13:52:32,008 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-07-17 13:52:32,773 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-07-17 13:52:33,652 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-07-17 13:52:34,247 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 13:52:35,034 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 13:52:35,668 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 13:52:36,334 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 13:52:37,207 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-07-17 13:52:38,078 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-07-17 13:52:38,996 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2020-07-17 13:52:39,918 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2020-07-17 13:52:40,850 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-07-17 13:52:41,593 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 13:52:42,374 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 13:52:43,170 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 13:52:43,988 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 13:52:45,088 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-07-17 13:52:45,931 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 13:52:47,086 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 13:52:48,276 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 13:52:49,477 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 13:52:50,730 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 13:52:51,992 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-07-17 13:52:53,268 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 13:52:54,551 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 13:52:55,527 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 13:52:56,908 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 13:52:57,944 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-07-17 13:52:59,385 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 13:53:00,787 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-07-17 13:53:02,213 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2020-07-17 13:53:03,699 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 13:53:05,177 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 13:53:06,640 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-07-17 13:53:08,070 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-07-17 13:53:09,487 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-07-17 13:53:10,886 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 13:53:12,228 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-07-17 13:53:13,271 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 13:53:14,652 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 13:53:16,031 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 13:53:17,158 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 13:53:18,560 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-07-17 13:53:19,959 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-07-17 13:53:21,319 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 13:53:22,404 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 13:53:23,828 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 13:53:25,279 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 13:53:26,090 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 42 [2020-07-17 13:53:26,091 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:53:26,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483460624] [2020-07-17 13:53:26,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:53:26,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [142] imperfect sequences [] total 142 [2020-07-17 13:53:26,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996666874] [2020-07-17 13:53:26,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 143 states [2020-07-17 13:53:26,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:53:26,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2020-07-17 13:53:26,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8433, Invalid=11873, Unknown=0, NotChecked=0, Total=20306 [2020-07-17 13:53:26,110 INFO L87 Difference]: Start difference. First operand 775 states and 942 transitions. Second operand 143 states. [2020-07-17 13:53:32,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:53:32,499 INFO L93 Difference]: Finished difference Result 2457 states and 3209 transitions. [2020-07-17 13:53:32,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-17 13:53:32,501 INFO L78 Accepts]: Start accepts. Automaton has 143 states. Word has length 190 [2020-07-17 13:53:32,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:53:32,526 INFO L225 Difference]: With dead ends: 2457 [2020-07-17 13:53:32,526 INFO L226 Difference]: Without dead ends: 1704 [2020-07-17 13:53:32,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3706 ImplicationChecksByTransitivity, 130.3s TimeCoverageRelationStatistics Valid=8606, Invalid=17154, Unknown=0, NotChecked=0, Total=25760 [2020-07-17 13:53:32,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2020-07-17 13:53:32,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1495. [2020-07-17 13:53:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-07-17 13:53:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1840 transitions. [2020-07-17 13:53:32,787 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1840 transitions. Word has length 190 [2020-07-17 13:53:32,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:53:32,788 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1840 transitions. [2020-07-17 13:53:32,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 143 states. [2020-07-17 13:53:32,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1840 transitions. [2020-07-17 13:53:32,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-17 13:53:32,795 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:53:32,796 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:53:32,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:53:32,796 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:53:32,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:53:32,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1325455276, now seen corresponding path program 1 times [2020-07-17 13:53:32,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:53:32,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825101698] [2020-07-17 13:53:32,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:53:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:53:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:53:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:53:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:53:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:53:34,072 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-07-17 13:53:34,279 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-17 13:53:34,472 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-07-17 13:53:34,669 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 13:53:34,896 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 13:53:35,310 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-07-17 13:53:35,775 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-07-17 13:53:36,057 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 13:53:36,369 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 13:53:36,722 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 13:53:37,351 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-07-17 13:53:37,737 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 13:53:38,145 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 13:53:38,590 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-07-17 13:53:39,393 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 13:53:40,235 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 13:53:41,096 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-07-17 13:53:42,009 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-07-17 13:53:42,551 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 13:53:43,503 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-07-17 13:53:44,099 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 13:53:44,707 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-07-17 13:53:45,817 WARN L193 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 13:53:46,837 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2020-07-17 13:53:47,887 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 13:53:48,959 WARN L193 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 13:53:49,628 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-07-17 13:53:50,801 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2020-07-17 13:53:52,029 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 13:53:53,304 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 13:53:54,578 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 13:53:55,348 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 13:53:56,147 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-17 13:53:57,569 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-07-17 13:53:58,437 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 13:53:59,904 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 13:54:01,485 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 13:54:03,075 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 13:54:04,028 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-17 13:54:04,999 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 13:54:06,680 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2020-07-17 13:54:08,791 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-07-17 13:54:10,347 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 13:54:11,919 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-07-17 13:54:12,929 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 13:54:13,963 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-17 13:54:15,651 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-07-17 13:54:17,414 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-07-17 13:54:19,081 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-07-17 13:54:21,381 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2020-07-17 13:54:23,093 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-07-17 13:54:24,817 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-07-17 13:54:26,590 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-07-17 13:54:28,425 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 112 DAG size of output: 112 [2020-07-17 13:54:30,171 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-07-17 13:54:32,520 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-07-17 13:54:34,159 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2020-07-17 13:54:35,748 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 13:54:37,352 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 13:54:39,046 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-07-17 13:54:40,741 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-07-17 13:54:42,984 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-07-17 13:54:44,663 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 13:54:46,359 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-07-17 13:54:48,026 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-07-17 13:54:49,697 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 13:54:51,379 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 13:54:53,417 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-07-17 13:54:54,981 WARN L193 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 13:54:56,542 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 13:54:58,533 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2020-07-17 13:54:59,933 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-07-17 13:55:01,186 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2020-07-17 13:55:02,206 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 72 [2020-07-17 13:55:03,126 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-07-17 13:55:04,102 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 13:55:05,196 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-07-17 13:55:05,946 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 13:55:06,940 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 13:55:07,751 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 13:55:08,592 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 13:55:09,683 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-07-17 13:55:10,769 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-07-17 13:55:11,899 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2020-07-17 13:55:13,049 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79 [2020-07-17 13:55:14,221 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-07-17 13:55:15,139 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 13:55:16,087 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 13:55:17,064 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 13:55:18,061 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 13:55:19,417 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 13:55:20,429 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 13:55:21,852 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 13:55:23,276 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 13:55:24,729 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 13:55:26,237 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 13:55:27,783 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 13:55:29,365 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 13:55:30,924 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 13:55:32,126 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-07-17 13:55:33,796 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2020-07-17 13:55:35,066 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 13:55:36,826 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-07-17 13:55:38,559 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-07-17 13:55:40,386 WARN L193 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 13:55:42,215 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-07-17 13:55:44,031 WARN L193 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 13:55:45,846 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-07-17 13:55:47,627 WARN L193 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 13:55:49,425 WARN L193 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-07-17 13:55:51,169 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-07-17 13:55:52,843 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-07-17 13:55:54,174 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 13:55:55,954 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 13:55:57,760 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 13:55:59,205 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-07-17 13:56:01,061 WARN L193 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-07-17 13:56:02,911 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 13:56:04,649 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-07-17 13:56:06,053 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 13:56:07,881 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 13:56:09,778 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 13:56:10,773 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 42 [2020-07-17 13:56:10,774 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:56:10,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825101698] [2020-07-17 13:56:10,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:56:10,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [141] imperfect sequences [] total 141 [2020-07-17 13:56:10,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507188084] [2020-07-17 13:56:10,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 142 states [2020-07-17 13:56:10,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:56:10,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2020-07-17 13:56:10,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8429, Invalid=11593, Unknown=0, NotChecked=0, Total=20022 [2020-07-17 13:56:10,787 INFO L87 Difference]: Start difference. First operand 1495 states and 1840 transitions. Second operand 142 states. [2020-07-17 13:56:12,097 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-07-17 13:56:12,512 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-07-17 13:56:12,977 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-07-17 13:56:13,445 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-07-17 13:56:13,977 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-07-17 13:56:14,600 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-07-17 13:56:15,184 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-07-17 13:56:16,105 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-07-17 13:56:17,135 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-07-17 13:56:18,298 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-07-17 13:56:19,290 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-07-17 13:56:20,268 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2020-07-17 13:56:21,279 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124 [2020-07-17 13:56:22,325 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2020-07-17 13:56:23,507 WARN L193 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 127 [2020-07-17 13:56:24,603 WARN L193 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2020-07-17 13:56:25,759 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 137 DAG size of output: 132 [2020-07-17 13:56:26,202 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 77 [2020-07-17 13:56:27,417 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 138 DAG size of output: 133 [2020-07-17 13:56:28,873 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 141 DAG size of output: 136 [2020-07-17 13:56:30,195 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 142 DAG size of output: 137 [2020-07-17 13:56:31,477 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 139 DAG size of output: 136 [2020-07-17 13:56:32,783 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 140 DAG size of output: 137 [2020-07-17 13:56:34,141 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 141 DAG size of output: 138 [2020-07-17 13:56:34,731 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 90 [2020-07-17 13:56:36,144 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 143 DAG size of output: 139 [2020-07-17 13:56:36,779 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2020-07-17 13:56:38,619 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2020-07-17 13:56:40,232 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2020-07-17 13:56:40,489 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 32 [2020-07-17 13:56:40,637 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-07-17 13:56:42,198 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 146 DAG size of output: 141 [2020-07-17 13:56:42,419 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 34 [2020-07-17 13:56:44,076 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 147 DAG size of output: 142 [2020-07-17 13:56:45,834 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 13:56:47,788 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 13:56:50,025 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2020-07-17 13:56:52,008 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-07-17 13:56:54,027 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2020-07-17 13:56:55,807 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 13:56:57,669 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2020-07-17 13:56:59,565 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-07-17 13:57:00,224 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-07-17 13:57:02,182 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-07-17 13:57:04,675 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-07-17 13:57:06,773 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-07-17 13:57:08,943 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-07-17 13:57:11,104 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 152 DAG size of output: 146 [2020-07-17 13:57:11,365 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-07-17 13:57:13,578 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 153 DAG size of output: 147 [2020-07-17 13:57:15,587 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 154 DAG size of output: 148 [2020-07-17 13:57:17,732 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 155 DAG size of output: 148 [2020-07-17 13:57:18,582 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 99 [2020-07-17 13:57:20,458 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-07-17 13:57:21,373 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 99 [2020-07-17 13:57:23,185 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2020-07-17 13:57:25,562 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2020-07-17 13:57:26,020 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2020-07-17 13:57:28,230 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-07-17 13:57:30,697 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-07-17 13:57:31,556 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 99 [2020-07-17 13:57:33,956 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 150 DAG size of output: 141 [2020-07-17 13:57:34,710 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 86 [2020-07-17 13:57:35,705 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2020-07-17 13:57:38,163 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 149 DAG size of output: 141 [2020-07-17 13:57:41,100 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-07-17 13:57:42,289 WARN L193 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-07-17 13:57:44,865 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2020-07-17 13:57:47,751 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 13:57:49,871 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2020-07-17 13:57:52,121 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 145 DAG size of output: 136 [2020-07-17 13:57:54,368 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 145 DAG size of output: 136 [2020-07-17 13:57:56,496 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2020-07-17 13:57:58,318 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2020-07-17 13:57:58,626 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-07-17 13:57:59,890 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-07-17 13:58:00,995 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-07-17 13:58:02,506 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-07-17 13:58:03,600 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-07-17 13:58:04,667 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-07-17 13:58:05,742 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-07-17 13:58:07,174 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-07-17 13:58:08,782 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-07-17 13:58:09,126 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-07-17 13:58:10,283 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-07-17 13:58:11,544 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2020-07-17 13:58:12,968 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 121 [2020-07-17 13:58:14,290 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-07-17 13:58:15,186 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2020-07-17 13:58:16,609 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 123 [2020-07-17 13:58:18,088 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2020-07-17 13:58:19,739 WARN L193 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 123 [2020-07-17 13:58:21,152 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2020-07-17 13:58:22,670 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 134 DAG size of output: 124 [2020-07-17 13:58:24,425 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 134 DAG size of output: 125 [2020-07-17 13:58:26,002 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 134 DAG size of output: 125 [2020-07-17 13:58:27,530 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2020-07-17 13:58:29,031 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2020-07-17 13:58:30,495 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2020-07-17 13:58:32,203 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2020-07-17 13:58:32,996 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 93 [2020-07-17 13:58:34,458 WARN L193 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-07-17 13:58:35,909 WARN L193 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 122 [2020-07-17 13:58:36,923 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 96 [2020-07-17 13:58:38,478 WARN L193 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 123 [2020-07-17 13:58:40,029 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 131 DAG size of output: 124 [2020-07-17 13:58:41,159 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 59 [2020-07-17 13:58:41,716 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 55 [2020-07-17 13:58:42,967 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 97 [2020-07-17 13:58:44,132 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 100 [2020-07-17 13:58:45,093 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2020-07-17 13:58:45,716 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2020-07-17 13:58:46,275 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2020-07-17 13:58:47,227 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 55 [2020-07-17 13:58:47,871 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-07-17 13:58:50,192 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 94 [2020-07-17 13:58:51,127 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 93 [2020-07-17 13:58:52,164 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 95 [2020-07-17 13:58:52,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:58:52,703 INFO L93 Difference]: Finished difference Result 5218 states and 6563 transitions. [2020-07-17 13:58:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2020-07-17 13:58:52,706 INFO L78 Accepts]: Start accepts. Automaton has 142 states. Word has length 195 [2020-07-17 13:58:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:58:52,731 INFO L225 Difference]: With dead ends: 5218 [2020-07-17 13:58:52,731 INFO L226 Difference]: Without dead ends: 2214 [2020-07-17 13:58:52,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 299 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22955 ImplicationChecksByTransitivity, 300.9s TimeCoverageRelationStatistics Valid=22487, Invalid=67813, Unknown=0, NotChecked=0, Total=90300 [2020-07-17 13:58:52,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2020-07-17 13:58:53,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2180. [2020-07-17 13:58:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-07-17 13:58:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 2665 transitions. [2020-07-17 13:58:53,056 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 2665 transitions. Word has length 195 [2020-07-17 13:58:53,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:58:53,056 INFO L479 AbstractCegarLoop]: Abstraction has 2180 states and 2665 transitions. [2020-07-17 13:58:53,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 142 states. [2020-07-17 13:58:53,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 2665 transitions. [2020-07-17 13:58:53,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-07-17 13:58:53,067 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:58:53,067 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:58:53,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:58:53,068 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:58:53,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:58:53,069 INFO L82 PathProgramCache]: Analyzing trace with hash -608759171, now seen corresponding path program 1 times [2020-07-17 13:58:53,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:58:53,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756022691] [2020-07-17 13:58:53,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:58:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:58:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:58:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:58:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:58:53,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:58:54,259 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-07-17 13:58:54,476 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-07-17 13:58:54,700 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-17 13:58:54,960 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 13:58:55,255 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 13:58:55,843 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-07-17 13:58:56,518 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-07-17 13:58:56,944 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 13:58:57,389 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 13:58:57,880 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 13:58:58,840 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-07-17 13:58:59,399 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 13:58:59,989 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 13:59:00,625 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 13:59:01,830 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 13:59:03,080 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 13:59:04,403 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 13:59:05,804 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 13:59:06,631 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-07-17 13:59:08,071 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-07-17 13:59:08,922 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 13:59:09,825 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 13:59:11,495 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-07-17 13:59:13,050 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-07-17 13:59:14,620 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2020-07-17 13:59:16,231 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 13:59:17,207 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 13:59:19,021 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 13:59:21,300 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-07-17 13:59:23,226 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 13:59:25,183 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 13:59:26,350 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-07-17 13:59:27,590 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 13:59:29,711 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 13:59:30,965 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-17 13:59:33,174 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 13:59:35,438 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 13:59:37,776 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 13:59:39,186 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 104 [2020-07-17 13:59:40,695 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 13:59:43,222 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2020-07-17 13:59:46,598 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-07-17 13:59:49,006 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 13:59:51,489 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-07-17 13:59:53,058 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 13:59:54,624 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 13:59:57,357 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:00:00,187 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-07-17 14:00:02,856 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:00:06,632 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 14:00:09,329 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:00:12,062 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2020-07-17 14:00:14,722 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:00:17,474 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:00:19,983 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:00:23,445 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:00:25,781 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-07-17 14:00:28,060 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 14:00:30,309 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-07-17 14:00:32,846 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:00:35,616 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:00:39,430 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:00:42,315 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:00:45,221 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:00:48,057 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:00:50,914 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:00:53,855 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:00:57,456 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2020-07-17 14:01:00,241 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 14:01:03,051 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 14:01:06,579 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-07-17 14:01:09,039 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-07-17 14:01:11,329 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-07-17 14:01:13,183 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-07-17 14:01:14,789 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2020-07-17 14:01:16,531 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-07-17 14:01:18,477 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-07-17 14:01:19,797 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 14:01:21,559 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-07-17 14:01:22,973 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 14:01:24,443 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:01:26,352 WARN L193 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-07-17 14:01:28,305 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-07-17 14:01:30,295 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 14:01:32,420 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 14:01:34,654 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-07-17 14:01:36,313 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:01:38,077 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:01:39,866 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:01:41,668 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:01:44,246 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-07-17 14:01:46,039 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:01:48,809 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2020-07-17 14:01:51,526 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-07-17 14:01:54,339 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-07-17 14:01:57,312 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:02:00,407 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 14:02:03,621 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:02:06,825 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:02:09,222 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:02:12,441 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:02:14,923 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:02:18,524 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:02:22,129 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-07-17 14:02:25,886 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:02:29,907 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:02:33,758 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 14:02:37,626 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:02:41,488 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-07-17 14:02:45,404 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-07-17 14:02:49,218 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-07-17 14:02:52,843 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-07-17 14:02:55,731 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:02:59,619 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:03:03,581 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:03:06,575 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:03:10,645 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-07-17 14:03:14,581 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 14:03:18,580 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-07-17 14:03:21,769 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 14:03:26,070 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:03:30,343 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:03:31,865 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 38 [2020-07-17 14:03:31,867 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:03:31,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756022691] [2020-07-17 14:03:31,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:03:31,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [139] imperfect sequences [] total 139 [2020-07-17 14:03:31,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378240861] [2020-07-17 14:03:31,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 140 states [2020-07-17 14:03:31,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:03:31,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2020-07-17 14:03:31,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8424, Invalid=11036, Unknown=0, NotChecked=0, Total=19460 [2020-07-17 14:03:31,874 INFO L87 Difference]: Start difference. First operand 2180 states and 2665 transitions. Second operand 140 states. [2020-07-17 14:03:39,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:03:39,065 INFO L93 Difference]: Finished difference Result 5627 states and 7153 transitions. [2020-07-17 14:03:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 14:03:39,072 INFO L78 Accepts]: Start accepts. Automaton has 140 states. Word has length 202 [2020-07-17 14:03:39,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:03:39,102 INFO L225 Difference]: With dead ends: 5627 [2020-07-17 14:03:39,102 INFO L226 Difference]: Without dead ends: 3479 [2020-07-17 14:03:39,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1579 ImplicationChecksByTransitivity, 278.9s TimeCoverageRelationStatistics Valid=8451, Invalid=12429, Unknown=0, NotChecked=0, Total=20880 [2020-07-17 14:03:39,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2020-07-17 14:03:39,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3257. [2020-07-17 14:03:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3257 states. [2020-07-17 14:03:39,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3257 states to 3257 states and 3946 transitions. [2020-07-17 14:03:39,552 INFO L78 Accepts]: Start accepts. Automaton has 3257 states and 3946 transitions. Word has length 202 [2020-07-17 14:03:39,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:03:39,554 INFO L479 AbstractCegarLoop]: Abstraction has 3257 states and 3946 transitions. [2020-07-17 14:03:39,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 140 states. [2020-07-17 14:03:39,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3257 states and 3946 transitions. [2020-07-17 14:03:39,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-07-17 14:03:39,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:03:39,572 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:03:39,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 14:03:39,572 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:03:39,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:03:39,573 INFO L82 PathProgramCache]: Analyzing trace with hash -2073547875, now seen corresponding path program 1 times [2020-07-17 14:03:39,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:03:39,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46744907] [2020-07-17 14:03:39,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:03:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:03:39,801 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-17 14:03:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:03:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:03:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:03:39,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:03:40,818 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 23 [2020-07-17 14:03:41,315 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-17 14:03:41,643 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-07-17 14:03:42,022 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-17 14:03:42,497 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-17 14:03:43,039 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:03:43,600 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 14:03:44,820 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-07-17 14:03:46,229 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 14:03:47,066 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:03:47,879 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:03:48,881 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:03:50,869 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-07-17 14:03:52,037 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:03:53,225 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:03:54,452 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:03:56,825 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 14:03:59,343 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:04:01,963 WARN L193 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 14:04:04,796 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 14:04:06,312 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 14:04:09,218 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-07-17 14:04:10,837 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 92 [2020-07-17 14:04:12,554 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:04:15,921 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-07-17 14:04:18,871 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2020-07-17 14:04:21,974 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 14:04:25,207 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 95 DAG size of output: 95 [2020-07-17 14:04:27,114 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 96 [2020-07-17 14:04:30,713 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 14:04:34,473 WARN L193 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-07-17 14:04:38,369 WARN L193 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:04:42,144 WARN L193 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-07-17 14:04:44,404 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 100