./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label26.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label26.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d75bac50353f9b54df523b936ad65e8376811233 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 23:28:08,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:28:08,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:28:08,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:28:08,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:28:08,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:28:08,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:28:08,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:28:08,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:28:08,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:28:08,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:28:08,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:28:08,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:28:08,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:28:08,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:28:08,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:28:08,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:28:08,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:28:08,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:28:08,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:28:08,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:28:08,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:28:08,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:28:08,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:28:08,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:28:08,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:28:08,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:28:08,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:28:08,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:28:08,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:28:08,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:28:08,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:28:08,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:28:08,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:28:08,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:28:08,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:28:08,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:28:08,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:28:08,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:28:08,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:28:08,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:28:08,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:28:08,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:28:08,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:28:08,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:28:08,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:28:08,779 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:28:08,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:28:08,780 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:28:08,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:28:08,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:28:08,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:28:08,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:28:08,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:28:08,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:28:08,782 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:28:08,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:28:08,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:28:08,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:28:08,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:28:08,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:28:08,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:28:08,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:28:08,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:28:08,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:28:08,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:28:08,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:28:08,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:28:08,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:28:08,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:28:08,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:28:08,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d75bac50353f9b54df523b936ad65e8376811233 [2020-10-19 23:28:09,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:28:09,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:28:09,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:28:09,020 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:28:09,021 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:28:09,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label26.c [2020-10-19 23:28:09,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4037728cb/870b2f72d7fe4576a8d0b04ecf5bdc2a/FLAG01c71b138 [2020-10-19 23:28:09,708 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:28:09,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label26.c [2020-10-19 23:28:09,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4037728cb/870b2f72d7fe4576a8d0b04ecf5bdc2a/FLAG01c71b138 [2020-10-19 23:28:09,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4037728cb/870b2f72d7fe4576a8d0b04ecf5bdc2a [2020-10-19 23:28:09,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:28:09,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:28:09,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:28:09,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:28:09,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:28:09,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:28:09" (1/1) ... [2020-10-19 23:28:09,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b13bc31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:09, skipping insertion in model container [2020-10-19 23:28:09,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:28:09" (1/1) ... [2020-10-19 23:28:10,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:28:10,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:28:10,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:28:10,626 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:28:10,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:28:10,794 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:28:10,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10 WrapperNode [2020-10-19 23:28:10,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:28:10,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:28:10,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:28:10,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:28:10,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (1/1) ... [2020-10-19 23:28:10,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (1/1) ... [2020-10-19 23:28:10,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:28:10,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:28:10,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:28:10,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:28:10,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (1/1) ... [2020-10-19 23:28:10,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (1/1) ... [2020-10-19 23:28:10,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (1/1) ... [2020-10-19 23:28:10,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (1/1) ... [2020-10-19 23:28:10,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (1/1) ... [2020-10-19 23:28:11,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (1/1) ... [2020-10-19 23:28:11,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (1/1) ... [2020-10-19 23:28:11,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:28:11,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:28:11,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:28:11,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:28:11,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (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 [2020-10-19 23:28:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:28:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:28:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:28:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:28:12,541 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:28:12,541 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:28:12,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:28:12 BoogieIcfgContainer [2020-10-19 23:28:12,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:28:12,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:28:12,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:28:12,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:28:12,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:28:09" (1/3) ... [2020-10-19 23:28:12,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de1d063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:28:12, skipping insertion in model container [2020-10-19 23:28:12,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:10" (2/3) ... [2020-10-19 23:28:12,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de1d063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:28:12, skipping insertion in model container [2020-10-19 23:28:12,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:28:12" (3/3) ... [2020-10-19 23:28:12,552 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label26.c [2020-10-19 23:28:12,563 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:28:12,571 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:28:12,584 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:28:12,759 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:28:12,759 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:28:12,759 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:28:12,760 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:28:12,760 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:28:12,760 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:28:12,760 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:28:12,761 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:28:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-19 23:28:12,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-19 23:28:12,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:12,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:12,794 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:12,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:12,800 INFO L82 PathProgramCache]: Analyzing trace with hash -215114758, now seen corresponding path program 1 times [2020-10-19 23:28:12,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:12,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69727205] [2020-10-19 23:28:12,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:13,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:13,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69727205] [2020-10-19 23:28:13,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:13,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:28:13,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901920239] [2020-10-19 23:28:13,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:13,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:13,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:13,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:13,166 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-19 23:28:14,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:14,314 INFO L93 Difference]: Finished difference Result 686 states and 1217 transitions. [2020-10-19 23:28:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:14,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-10-19 23:28:14,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:14,333 INFO L225 Difference]: With dead ends: 686 [2020-10-19 23:28:14,333 INFO L226 Difference]: Without dead ends: 360 [2020-10-19 23:28:14,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:14,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-19 23:28:14,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-19 23:28:14,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-19 23:28:14,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-10-19 23:28:14,408 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 66 [2020-10-19 23:28:14,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:14,409 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-10-19 23:28:14,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-10-19 23:28:14,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-19 23:28:14,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:14,420 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-19 23:28:14,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:28:14,421 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:14,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:14,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1414713489, now seen corresponding path program 1 times [2020-10-19 23:28:14,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:14,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921555634] [2020-10-19 23:28:14,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:14,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921555634] [2020-10-19 23:28:14,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:14,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:14,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32868132] [2020-10-19 23:28:14,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:28:14,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:14,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:28:14,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:28:14,691 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-10-19 23:28:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:16,018 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-10-19 23:28:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:28:16,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2020-10-19 23:28:16,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:16,024 INFO L225 Difference]: With dead ends: 1074 [2020-10-19 23:28:16,025 INFO L226 Difference]: Without dead ends: 716 [2020-10-19 23:28:16,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:16,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-19 23:28:16,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-10-19 23:28:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-19 23:28:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-10-19 23:28:16,083 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 145 [2020-10-19 23:28:16,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:16,084 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-10-19 23:28:16,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:28:16,086 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-10-19 23:28:16,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-19 23:28:16,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:16,090 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-19 23:28:16,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:28:16,090 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:16,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:16,091 INFO L82 PathProgramCache]: Analyzing trace with hash 401954990, now seen corresponding path program 1 times [2020-10-19 23:28:16,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:16,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65256224] [2020-10-19 23:28:16,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:16,394 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 23:28:16,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65256224] [2020-10-19 23:28:16,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273787103] [2020-10-19 23:28:16,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:16,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:16,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:16,581 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:16,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:16,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 23:28:16,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722929035] [2020-10-19 23:28:16,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:16,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:16,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:16,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:16,585 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-10-19 23:28:17,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:17,447 INFO L93 Difference]: Finished difference Result 1964 states and 2499 transitions. [2020-10-19 23:28:17,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:17,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-10-19 23:28:17,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:17,460 INFO L225 Difference]: With dead ends: 1964 [2020-10-19 23:28:17,460 INFO L226 Difference]: Without dead ends: 1250 [2020-10-19 23:28:17,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:17,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-19 23:28:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-10-19 23:28:17,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-10-19 23:28:17,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-10-19 23:28:17,511 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 171 [2020-10-19 23:28:17,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:17,512 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-10-19 23:28:17,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:17,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-10-19 23:28:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-19 23:28:17,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:17,522 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:28:17,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 23:28:17,731 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:17,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:17,731 INFO L82 PathProgramCache]: Analyzing trace with hash 658646531, now seen corresponding path program 1 times [2020-10-19 23:28:17,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:17,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281862697] [2020-10-19 23:28:17,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:17,959 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-19 23:28:17,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281862697] [2020-10-19 23:28:17,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:17,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:17,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727535136] [2020-10-19 23:28:17,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:28:17,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:17,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:28:17,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:28:17,963 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-10-19 23:28:18,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:18,985 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-10-19 23:28:18,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:28:18,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 225 [2020-10-19 23:28:18,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:18,994 INFO L225 Difference]: With dead ends: 2705 [2020-10-19 23:28:18,994 INFO L226 Difference]: Without dead ends: 1606 [2020-10-19 23:28:18,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:28:18,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-10-19 23:28:19,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-10-19 23:28:19,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-19 23:28:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-10-19 23:28:19,030 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 225 [2020-10-19 23:28:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:19,031 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-10-19 23:28:19,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:28:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-10-19 23:28:19,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-10-19 23:28:19,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:19,037 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:19,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:28:19,038 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:19,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:19,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1789064688, now seen corresponding path program 1 times [2020-10-19 23:28:19,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:19,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559378085] [2020-10-19 23:28:19,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:19,565 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 239 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-19 23:28:19,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559378085] [2020-10-19 23:28:19,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948967079] [2020-10-19 23:28:19,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:19,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:19,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-19 23:28:20,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:20,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-19 23:28:20,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880713349] [2020-10-19 23:28:20,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:20,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:20,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:20,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:28:20,034 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-10-19 23:28:20,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:20,968 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-10-19 23:28:20,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:20,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 352 [2020-10-19 23:28:20,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:20,980 INFO L225 Difference]: With dead ends: 3388 [2020-10-19 23:28:20,980 INFO L226 Difference]: Without dead ends: 1962 [2020-10-19 23:28:20,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:28:20,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-19 23:28:21,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2020-10-19 23:28:21,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-19 23:28:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2020-10-19 23:28:21,043 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 352 [2020-10-19 23:28:21,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:21,045 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2020-10-19 23:28:21,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:21,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2020-10-19 23:28:21,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-19 23:28:21,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:21,057 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:21,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:21,271 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:21,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:21,271 INFO L82 PathProgramCache]: Analyzing trace with hash 753351046, now seen corresponding path program 1 times [2020-10-19 23:28:21,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:21,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136187079] [2020-10-19 23:28:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 322 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:21,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136187079] [2020-10-19 23:28:21,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088166315] [2020-10-19 23:28:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:21,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:21,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-10-19 23:28:22,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:22,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:28:22,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793565248] [2020-10-19 23:28:22,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:22,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:22,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:22,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:22,034 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand 3 states. [2020-10-19 23:28:22,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:22,885 INFO L93 Difference]: Finished difference Result 3922 states and 4505 transitions. [2020-10-19 23:28:22,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:22,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 356 [2020-10-19 23:28:22,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:22,898 INFO L225 Difference]: With dead ends: 3922 [2020-10-19 23:28:22,898 INFO L226 Difference]: Without dead ends: 2318 [2020-10-19 23:28:22,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-10-19 23:28:22,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2020-10-19 23:28:22,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-10-19 23:28:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2601 transitions. [2020-10-19 23:28:22,977 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2601 transitions. Word has length 356 [2020-10-19 23:28:22,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:22,978 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2601 transitions. [2020-10-19 23:28:22,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2601 transitions. [2020-10-19 23:28:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-10-19 23:28:22,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:22,991 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:23,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:23,207 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:23,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:23,207 INFO L82 PathProgramCache]: Analyzing trace with hash -973974359, now seen corresponding path program 1 times [2020-10-19 23:28:23,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:23,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374001021] [2020-10-19 23:28:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:23,881 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 375 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:23,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374001021] [2020-10-19 23:28:23,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314919210] [2020-10-19 23:28:23,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:23,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:23,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:28:24,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:24,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:28:24,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851799996] [2020-10-19 23:28:24,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:24,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:24,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:24,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:24,101 INFO L87 Difference]: Start difference. First operand 2318 states and 2601 transitions. Second operand 3 states. [2020-10-19 23:28:24,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:24,800 INFO L93 Difference]: Finished difference Result 4812 states and 5491 transitions. [2020-10-19 23:28:24,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:24,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 385 [2020-10-19 23:28:24,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:24,814 INFO L225 Difference]: With dead ends: 4812 [2020-10-19 23:28:24,815 INFO L226 Difference]: Without dead ends: 2674 [2020-10-19 23:28:24,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-19 23:28:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-10-19 23:28:24,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-19 23:28:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2860 transitions. [2020-10-19 23:28:24,871 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2860 transitions. Word has length 385 [2020-10-19 23:28:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:24,872 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2860 transitions. [2020-10-19 23:28:24,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2860 transitions. [2020-10-19 23:28:24,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-19 23:28:24,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:24,882 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:25,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:25,098 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:25,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1208919337, now seen corresponding path program 1 times [2020-10-19 23:28:25,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:25,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70023459] [2020-10-19 23:28:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 590 proven. 130 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-19 23:28:25,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70023459] [2020-10-19 23:28:25,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864469693] [2020-10-19 23:28:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:25,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:25,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:25,881 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:28:25,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:25,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:28:25,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626786593] [2020-10-19 23:28:25,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:25,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:25,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:25,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:25,884 INFO L87 Difference]: Start difference. First operand 2496 states and 2860 transitions. Second operand 3 states. [2020-10-19 23:28:26,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:26,575 INFO L93 Difference]: Finished difference Result 4812 states and 5539 transitions. [2020-10-19 23:28:26,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:26,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 457 [2020-10-19 23:28:26,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:26,585 INFO L225 Difference]: With dead ends: 4812 [2020-10-19 23:28:26,586 INFO L226 Difference]: Without dead ends: 2496 [2020-10-19 23:28:26,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:26,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-10-19 23:28:26,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2020-10-19 23:28:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-19 23:28:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2797 transitions. [2020-10-19 23:28:26,631 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2797 transitions. Word has length 457 [2020-10-19 23:28:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:26,632 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2797 transitions. [2020-10-19 23:28:26,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2797 transitions. [2020-10-19 23:28:26,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2020-10-19 23:28:26,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:26,643 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:26,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:26,858 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:26,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:26,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1482820465, now seen corresponding path program 1 times [2020-10-19 23:28:26,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:26,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165345570] [2020-10-19 23:28:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:28:27,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165345570] [2020-10-19 23:28:27,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:27,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:27,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815139331] [2020-10-19 23:28:27,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:27,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:27,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:27,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:27,142 INFO L87 Difference]: Start difference. First operand 2496 states and 2797 transitions. Second operand 3 states. [2020-10-19 23:28:28,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:28,086 INFO L93 Difference]: Finished difference Result 5702 states and 6451 transitions. [2020-10-19 23:28:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:28,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 462 [2020-10-19 23:28:28,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:28,107 INFO L225 Difference]: With dead ends: 5702 [2020-10-19 23:28:28,107 INFO L226 Difference]: Without dead ends: 3386 [2020-10-19 23:28:28,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-10-19 23:28:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-10-19 23:28:28,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-19 23:28:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3792 transitions. [2020-10-19 23:28:28,201 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3792 transitions. Word has length 462 [2020-10-19 23:28:28,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:28,203 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3792 transitions. [2020-10-19 23:28:28,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:28,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3792 transitions. [2020-10-19 23:28:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2020-10-19 23:28:28,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:28,213 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:28,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:28:28,214 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:28,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:28,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1765962135, now seen corresponding path program 1 times [2020-10-19 23:28:28,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:28,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525039268] [2020-10-19 23:28:28,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 677 proven. 130 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-19 23:28:29,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525039268] [2020-10-19 23:28:29,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294986738] [2020-10-19 23:28:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:29,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:29,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:29,603 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2020-10-19 23:28:29,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:29,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:28:29,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652216091] [2020-10-19 23:28:29,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:29,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:29,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:29,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:29,609 INFO L87 Difference]: Start difference. First operand 3386 states and 3792 transitions. Second operand 3 states. [2020-10-19 23:28:30,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:30,503 INFO L93 Difference]: Finished difference Result 4812 states and 5389 transitions. [2020-10-19 23:28:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:30,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 486 [2020-10-19 23:28:30,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:30,529 INFO L225 Difference]: With dead ends: 4812 [2020-10-19 23:28:30,529 INFO L226 Difference]: Without dead ends: 4810 [2020-10-19 23:28:30,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:30,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-10-19 23:28:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3564. [2020-10-19 23:28:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-10-19 23:28:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 4007 transitions. [2020-10-19 23:28:30,629 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 4007 transitions. Word has length 486 [2020-10-19 23:28:30,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:30,630 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 4007 transitions. [2020-10-19 23:28:30,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:30,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 4007 transitions. [2020-10-19 23:28:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2020-10-19 23:28:30,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:30,642 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:28:30,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:30,857 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:30,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:30,857 INFO L82 PathProgramCache]: Analyzing trace with hash -438308529, now seen corresponding path program 1 times [2020-10-19 23:28:30,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:30,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414950997] [2020-10-19 23:28:30,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 644 proven. 130 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-19 23:28:31,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414950997] [2020-10-19 23:28:31,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346670337] [2020-10-19 23:28:31,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:31,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:31,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2020-10-19 23:28:31,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:31,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:28:31,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937738602] [2020-10-19 23:28:31,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:32,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:32,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:32,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:32,006 INFO L87 Difference]: Start difference. First operand 3564 states and 4007 transitions. Second operand 3 states. [2020-10-19 23:28:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:32,769 INFO L93 Difference]: Finished difference Result 7658 states and 8675 transitions. [2020-10-19 23:28:32,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:32,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 493 [2020-10-19 23:28:32,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:32,774 INFO L225 Difference]: With dead ends: 7658 [2020-10-19 23:28:32,774 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:28:32,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:32,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:28:32,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:28:32,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:28:32,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:28:32,783 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 493 [2020-10-19 23:28:32,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:32,783 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:28:32,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:32,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:28:32,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:28:32,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:33,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:28:33,163 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-19 23:28:33,163 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:28:33,163 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:28:33,163 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:28:33,163 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-19 23:28:33,163 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-19 23:28:33,164 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-19 23:28:33,165 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-19 23:28:33,166 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-19 23:28:33,166 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,166 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,166 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,167 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-19 23:28:33,167 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:28:33,167 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:28:33,168 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:28:33,168 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-19 23:28:33,168 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-19 23:28:33,169 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-19 23:28:33,169 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-19 23:28:33,170 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-19 23:28:33,170 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,170 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,170 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,170 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-19 23:28:33,170 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:28:33,171 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:28:33,171 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:28:33,171 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-19 23:28:33,171 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-19 23:28:33,171 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-19 23:28:33,171 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,172 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,172 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,172 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-19 23:28:33,172 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:28:33,172 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:28:33,172 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:28:33,173 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-19 23:28:33,173 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-19 23:28:33,173 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-19 23:28:33,173 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-19 23:28:33,173 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-19 23:28:33,173 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,174 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,174 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,174 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-19 23:28:33,174 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:28:33,174 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:28:33,174 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:28:33,174 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-19 23:28:33,175 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-19 23:28:33,175 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-19 23:28:33,175 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-19 23:28:33,175 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,175 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,175 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,176 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:28:33,176 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:28:33,176 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:28:33,176 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-19 23:28:33,176 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-19 23:28:33,177 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-19 23:28:33,177 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:28:33,177 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-19 23:28:33,177 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-19 23:28:33,177 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,177 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,178 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,178 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-19 23:28:33,178 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-19 23:28:33,178 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:28:33,178 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:28:33,178 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:28:33,179 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-19 23:28:33,179 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-19 23:28:33,179 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-19 23:28:33,179 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,179 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,179 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,180 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:28:33,180 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:28:33,180 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:28:33,180 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-19 23:28:33,180 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-19 23:28:33,180 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-19 23:28:33,180 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-19 23:28:33,181 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-19 23:28:33,181 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,181 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,181 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,181 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:28:33,182 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:28:33,182 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-19 23:28:33,182 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-19 23:28:33,182 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:28:33,182 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:28:33,182 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:28:33,182 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-19 23:28:33,183 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-19 23:28:33,183 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-19 23:28:33,183 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,183 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,183 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,183 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-19 23:28:33,184 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:28:33,184 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:28:33,184 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:28:33,184 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-19 23:28:33,184 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-19 23:28:33,184 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:28:33,185 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-19 23:28:33,185 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-19 23:28:33,185 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,185 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,185 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,185 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-19 23:28:33,185 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:28:33,186 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:28:33,186 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:28:33,186 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-19 23:28:33,186 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-19 23:28:33,186 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-19 23:28:33,186 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-19 23:28:33,187 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,187 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,187 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-19 23:28:33,187 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:28:33,187 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:28:33,187 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-19 23:28:33,187 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-19 23:28:33,188 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-19 23:28:33,188 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-19 23:28:33,188 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-19 23:28:33,188 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,188 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,189 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-19 23:28:33,189 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:28:33,189 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:28:33,189 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-19 23:28:33,189 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-19 23:28:33,189 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-19 23:28:33,190 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,190 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,190 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (or (<= ~a21~0 7) (<= 9 ~a21~0) (<= 7 ~a15~0) (< 11 ~a12~0)) [2020-10-19 23:28:33,190 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-19 23:28:33,190 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-19 23:28:33,191 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:28:33,191 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:28:33,191 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-19 23:28:33,191 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-19 23:28:33,191 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-19 23:28:33,192 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-19 23:28:33,192 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,192 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,192 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-19 23:28:33,192 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-19 23:28:33,192 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-19 23:28:33,193 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:28:33,193 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:28:33,193 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-19 23:28:33,193 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-19 23:28:33,193 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-19 23:28:33,193 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:28:33,194 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,194 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,194 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-19 23:28:33,194 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-19 23:28:33,194 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:28:33,194 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:28:33,194 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-19 23:28:33,195 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-19 23:28:33,195 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,195 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,195 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:28:33,195 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,195 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-19 23:28:33,196 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (or (<= ~a21~0 7) (<= 9 ~a21~0) (<= 7 ~a15~0) (< 11 ~a12~0)) [2020-10-19 23:28:33,196 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-19 23:28:33,196 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-19 23:28:33,196 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:28:33,196 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:28:33,196 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:28:33,197 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-19 23:28:33,197 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-19 23:28:33,197 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-19 23:28:33,197 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-19 23:28:33,197 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,197 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,198 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,198 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-19 23:28:33,198 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:28:33,198 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:28:33,198 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:28:33,198 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-19 23:28:33,199 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:28:33,199 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-19 23:28:33,199 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-19 23:28:33,199 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-19 23:28:33,199 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-19 23:28:33,199 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,200 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,200 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,200 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-19 23:28:33,200 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-19 23:28:33,200 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:28:33,200 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:28:33,201 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:28:33,201 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-19 23:28:33,201 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-19 23:28:33,201 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-19 23:28:33,201 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,201 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,202 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,202 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-19 23:28:33,202 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:28:33,202 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:28:33,202 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:28:33,203 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-19 23:28:33,203 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-19 23:28:33,203 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-19 23:28:33,203 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-19 23:28:33,203 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-19 23:28:33,203 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,204 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,204 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:33,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:28:33 BoogieIcfgContainer [2020-10-19 23:28:33,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:28:33,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:28:33,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:28:33,229 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:28:33,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:28:12" (3/4) ... [2020-10-19 23:28:33,233 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:28:33,272 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:28:33,274 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:28:33,275 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:28:33,277 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:28:33,627 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:28:33,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:28:33,630 INFO L168 Benchmark]: Toolchain (without parser) took 23652.00 ms. Allocated memory was 40.9 MB in the beginning and 366.0 MB in the end (delta: 325.1 MB). Free memory was 17.3 MB in the beginning and 66.4 MB in the end (delta: -49.1 MB). Peak memory consumption was 275.9 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:33,631 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 31.5 MB. Free memory was 7.6 MB in the beginning and 7.6 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-19 23:28:33,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.58 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 16.5 MB in the beginning and 21.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:33,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.63 ms. Allocated memory is still 43.5 MB. Free memory was 21.5 MB in the beginning and 11.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:33,633 INFO L168 Benchmark]: Boogie Preprocessor took 131.88 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 11.8 MB in the beginning and 18.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:33,634 INFO L168 Benchmark]: RCFGBuilder took 1503.67 ms. Allocated memory was 44.6 MB in the beginning and 59.2 MB in the end (delta: 14.7 MB). Free memory was 18.3 MB in the beginning and 12.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:33,635 INFO L168 Benchmark]: TraceAbstraction took 20683.24 ms. Allocated memory was 59.2 MB in the beginning and 366.0 MB in the end (delta: 306.7 MB). Free memory was 11.9 MB in the beginning and 96.2 MB in the end (delta: -84.3 MB). Peak memory consumption was 222.4 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:33,635 INFO L168 Benchmark]: Witness Printer took 399.31 ms. Allocated memory is still 366.0 MB. Free memory was 96.2 MB in the beginning and 66.4 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:33,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 31.5 MB. Free memory was 7.6 MB in the beginning and 7.6 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 812.58 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 16.5 MB in the beginning and 21.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 111.63 ms. Allocated memory is still 43.5 MB. Free memory was 21.5 MB in the beginning and 11.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 131.88 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 11.8 MB in the beginning and 18.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1503.67 ms. Allocated memory was 44.6 MB in the beginning and 59.2 MB in the end (delta: 14.7 MB). Free memory was 18.3 MB in the beginning and 12.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 20683.24 ms. Allocated memory was 59.2 MB in the beginning and 366.0 MB in the end (delta: 306.7 MB). Free memory was 11.9 MB in the beginning and 96.2 MB in the end (delta: -84.3 MB). Peak memory consumption was 222.4 MB. Max. memory is 14.3 GB. * Witness Printer took 399.31 ms. Allocated memory is still 366.0 MB. Free memory was 96.2 MB in the beginning and 66.4 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((a21 <= 7 || 9 <= a21) || 7 <= a15) || 11 < a12 - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: ((a21 <= 7 || 9 <= a21) || 7 <= a15) || 11 < a12 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.2s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1476 SDtfs, 1618 SDslu, 59 SDs, 0 SdLazy, 5819 SolverSat, 898 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2737 GetRequests, 2698 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3564occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 1602 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 55 NumberOfFragments, 27 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1028 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 152 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 6298 NumberOfCodeBlocks, 6298 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 6280 ConstructedInterpolants, 0 QuantifiedInterpolants, 8757579 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3654 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 8129/8966 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...