./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label07.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/Problem10_label07.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 2f710591e3bbad4cb64a2fc0b2b8f906913c8358 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:09:18,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:09:18,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:09:18,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:09:18,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:09:18,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:09:18,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:09:18,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:09:18,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:09:18,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:09:18,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:09:18,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:09:18,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:09:18,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:09:18,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:09:18,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:09:18,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:09:18,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:09:18,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:09:18,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:09:18,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:09:18,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:09:18,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:09:18,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:09:18,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:09:18,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:09:18,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:09:18,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:09:18,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:09:18,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:09:18,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:09:18,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:09:18,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:09:18,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:09:18,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:09:18,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:09:18,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:09:18,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:09:18,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:09:18,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:09:18,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:09:18,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:09:18,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:09:18,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:09:18,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:09:18,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:09:18,858 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:09:18,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:09:18,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:09:18,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:09:18,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:09:18,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:09:18,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:09:18,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:09:18,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:09:18,861 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:09:18,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:09:18,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:09:18,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:09:18,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:09:18,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:09:18,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:09:18,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:09:18,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:09:18,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:09:18,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:09:18,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:09:18,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:09:18,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:09:18,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:09:18,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:09:18,866 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 -> 2f710591e3bbad4cb64a2fc0b2b8f906913c8358 [2020-10-19 23:09:19,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:09:19,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:09:19,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:09:19,108 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:09:19,108 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:09:19,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label07.c [2020-10-19 23:09:19,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f263fa266/6d50a584851245e1b3c032e0c86a829d/FLAGb39154ab3 [2020-10-19 23:09:19,764 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:09:19,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label07.c [2020-10-19 23:09:19,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f263fa266/6d50a584851245e1b3c032e0c86a829d/FLAGb39154ab3 [2020-10-19 23:09:20,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f263fa266/6d50a584851245e1b3c032e0c86a829d [2020-10-19 23:09:20,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:09:20,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:09:20,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:09:20,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:09:20,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:09:20,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17846d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20, skipping insertion in model container [2020-10-19 23:09:20,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:09:20,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:09:20,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:09:20,602 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:09:20,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:09:20,703 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:09:20,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20 WrapperNode [2020-10-19 23:09:20,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:09:20,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:09:20,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:09:20,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:09:20,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:09:20,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:09:20,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:09:20,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:09:20,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (1/1) ... [2020-10-19 23:09:20,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:09:20,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:09:20,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:09:20,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:09:20,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (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 23:09:21,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:09:21,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:09:21,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:09:21,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:09:22,704 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:09:22,705 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:09:22,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:09:22 BoogieIcfgContainer [2020-10-19 23:09:22,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:09:22,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:09:22,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:09:22,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:09:22,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:09:20" (1/3) ... [2020-10-19 23:09:22,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e682d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:09:22, skipping insertion in model container [2020-10-19 23:09:22,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:20" (2/3) ... [2020-10-19 23:09:22,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e682d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:09:22, skipping insertion in model container [2020-10-19 23:09:22,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:09:22" (3/3) ... [2020-10-19 23:09:22,718 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label07.c [2020-10-19 23:09:22,754 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:09:22,765 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:09:22,783 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:09:22,829 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:09:22,829 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:09:22,830 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:09:22,831 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:09:22,831 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:09:22,831 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:09:22,831 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:09:22,832 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:09:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-19 23:09:22,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-19 23:09:22,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:22,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:09:22,877 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:22,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:22,885 INFO L82 PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times [2020-10-19 23:09:22,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:22,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571650380] [2020-10-19 23:09:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:23,210 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 23:09:23,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571650380] [2020-10-19 23:09:23,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:23,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:09:23,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894291436] [2020-10-19 23:09:23,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:23,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:23,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:23,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:23,258 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-19 23:09:24,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:24,446 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-10-19 23:09:24,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:24,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-10-19 23:09:24,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:24,464 INFO L225 Difference]: With dead ends: 568 [2020-10-19 23:09:24,465 INFO L226 Difference]: Without dead ends: 282 [2020-10-19 23:09:24,469 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 23:09:24,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-19 23:09:24,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-19 23:09:24,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-19 23:09:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-10-19 23:09:24,536 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 45 [2020-10-19 23:09:24,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:24,536 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-10-19 23:09:24,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:24,537 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-10-19 23:09:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-19 23:09:24,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:24,541 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, 1, 1, 1, 1, 1, 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 23:09:24,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:09:24,542 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:24,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:24,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1775270330, now seen corresponding path program 1 times [2020-10-19 23:09:24,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:24,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509175726] [2020-10-19 23:09:24,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:24,813 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:24,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509175726] [2020-10-19 23:09:24,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626551783] [2020-10-19 23:09:24,815 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 23:09:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:24,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:09:24,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:09:24,978 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-19 23:09:24,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:09:24,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 23:09:24,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626666231] [2020-10-19 23:09:24,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:24,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:24,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:24,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:09:24,982 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-10-19 23:09:25,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:25,620 INFO L93 Difference]: Finished difference Result 562 states and 862 transitions. [2020-10-19 23:09:25,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:25,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-10-19 23:09:25,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:25,625 INFO L225 Difference]: With dead ends: 562 [2020-10-19 23:09:25,625 INFO L226 Difference]: Without dead ends: 560 [2020-10-19 23:09:25,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 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 23:09:25,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-19 23:09:25,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 282. [2020-10-19 23:09:25,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-19 23:09:25,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-10-19 23:09:25,648 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 111 [2020-10-19 23:09:25,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:25,649 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-10-19 23:09:25,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:25,650 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-10-19 23:09:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-19 23:09:25,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:25,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:25,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-19 23:09:25,872 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:25,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:25,873 INFO L82 PathProgramCache]: Analyzing trace with hash 623839905, now seen corresponding path program 1 times [2020-10-19 23:09:25,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:25,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745589667] [2020-10-19 23:09:25,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:25,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745589667] [2020-10-19 23:09:25,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:25,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:09:25,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368140951] [2020-10-19 23:09:25,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:25,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:25,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:25,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:25,991 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-10-19 23:09:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:26,648 INFO L93 Difference]: Finished difference Result 701 states and 1076 transitions. [2020-10-19 23:09:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:26,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-10-19 23:09:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:26,653 INFO L225 Difference]: With dead ends: 701 [2020-10-19 23:09:26,653 INFO L226 Difference]: Without dead ends: 421 [2020-10-19 23:09:26,655 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 23:09:26,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-10-19 23:09:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-10-19 23:09:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-19 23:09:26,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 596 transitions. [2020-10-19 23:09:26,673 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 596 transitions. Word has length 114 [2020-10-19 23:09:26,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:26,673 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 596 transitions. [2020-10-19 23:09:26,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:26,674 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 596 transitions. [2020-10-19 23:09:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-19 23:09:26,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:26,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:26,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:09:26,677 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:26,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:26,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1358004824, now seen corresponding path program 1 times [2020-10-19 23:09:26,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:26,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249961405] [2020-10-19 23:09:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:26,871 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:26,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249961405] [2020-10-19 23:09:26,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:26,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:26,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75735801] [2020-10-19 23:09:26,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:09:26,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:26,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:09:26,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:09:26,874 INFO L87 Difference]: Start difference. First operand 421 states and 596 transitions. Second operand 4 states. [2020-10-19 23:09:27,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:27,684 INFO L93 Difference]: Finished difference Result 990 states and 1390 transitions. [2020-10-19 23:09:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 23:09:27,684 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 123 [2020-10-19 23:09:27,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:27,689 INFO L225 Difference]: With dead ends: 990 [2020-10-19 23:09:27,689 INFO L226 Difference]: Without dead ends: 571 [2020-10-19 23:09:27,690 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 23:09:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-10-19 23:09:27,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 560. [2020-10-19 23:09:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-19 23:09:27,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 740 transitions. [2020-10-19 23:09:27,706 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 740 transitions. Word has length 123 [2020-10-19 23:09:27,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:27,707 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 740 transitions. [2020-10-19 23:09:27,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:09:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 740 transitions. [2020-10-19 23:09:27,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-19 23:09:27,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:27,711 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, 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] [2020-10-19 23:09:27,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:09:27,711 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:27,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:27,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1673786615, now seen corresponding path program 1 times [2020-10-19 23:09:27,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:27,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057941262] [2020-10-19 23:09:27,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:27,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057941262] [2020-10-19 23:09:27,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:27,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:27,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896594433] [2020-10-19 23:09:27,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:27,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:27,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:27,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:27,843 INFO L87 Difference]: Start difference. First operand 560 states and 740 transitions. Second operand 3 states. [2020-10-19 23:09:28,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:28,464 INFO L93 Difference]: Finished difference Result 1257 states and 1713 transitions. [2020-10-19 23:09:28,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:28,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-10-19 23:09:28,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:28,469 INFO L225 Difference]: With dead ends: 1257 [2020-10-19 23:09:28,470 INFO L226 Difference]: Without dead ends: 838 [2020-10-19 23:09:28,471 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 23:09:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-19 23:09:28,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-19 23:09:28,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-19 23:09:28,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1039 transitions. [2020-10-19 23:09:28,489 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1039 transitions. Word has length 189 [2020-10-19 23:09:28,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:28,490 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1039 transitions. [2020-10-19 23:09:28,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1039 transitions. [2020-10-19 23:09:28,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-19 23:09:28,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:28,494 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, 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] [2020-10-19 23:09:28,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:09:28,495 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:28,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:28,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1619231775, now seen corresponding path program 1 times [2020-10-19 23:09:28,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:28,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145766825] [2020-10-19 23:09:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:28,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145766825] [2020-10-19 23:09:28,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:28,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 23:09:28,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787854552] [2020-10-19 23:09:28,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:09:28,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:28,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:09:28,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:09:28,817 INFO L87 Difference]: Start difference. First operand 838 states and 1039 transitions. Second operand 7 states. [2020-10-19 23:09:29,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:29,629 INFO L93 Difference]: Finished difference Result 1590 states and 1987 transitions. [2020-10-19 23:09:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 23:09:29,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-10-19 23:09:29,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:29,634 INFO L225 Difference]: With dead ends: 1590 [2020-10-19 23:09:29,635 INFO L226 Difference]: Without dead ends: 838 [2020-10-19 23:09:29,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:09:29,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-19 23:09:29,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-19 23:09:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-19 23:09:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1035 transitions. [2020-10-19 23:09:29,666 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1035 transitions. Word has length 198 [2020-10-19 23:09:29,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:29,667 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1035 transitions. [2020-10-19 23:09:29,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:09:29,667 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1035 transitions. [2020-10-19 23:09:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-19 23:09:29,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:29,674 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, 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] [2020-10-19 23:09:29,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:09:29,675 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:29,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:29,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1553961657, now seen corresponding path program 1 times [2020-10-19 23:09:29,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:29,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226422800] [2020-10-19 23:09:29,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:29,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226422800] [2020-10-19 23:09:29,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:29,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:29,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035654527] [2020-10-19 23:09:29,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:29,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:29,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:29,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:29,989 INFO L87 Difference]: Start difference. First operand 838 states and 1035 transitions. Second operand 3 states. [2020-10-19 23:09:30,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:30,683 INFO L93 Difference]: Finished difference Result 1952 states and 2515 transitions. [2020-10-19 23:09:30,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:30,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-10-19 23:09:30,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:30,689 INFO L225 Difference]: With dead ends: 1952 [2020-10-19 23:09:30,690 INFO L226 Difference]: Without dead ends: 1255 [2020-10-19 23:09:30,691 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 23:09:30,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-19 23:09:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2020-10-19 23:09:30,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:09:30,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1363 transitions. [2020-10-19 23:09:30,714 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1363 transitions. Word has length 234 [2020-10-19 23:09:30,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:30,715 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1363 transitions. [2020-10-19 23:09:30,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1363 transitions. [2020-10-19 23:09:30,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-19 23:09:30,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:30,720 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, 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, 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] [2020-10-19 23:09:30,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:09:30,721 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:30,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:30,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1934752960, now seen corresponding path program 1 times [2020-10-19 23:09:30,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:30,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264665675] [2020-10-19 23:09:30,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:31,287 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 52 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-19 23:09:31,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264665675] [2020-10-19 23:09:31,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154499104] [2020-10-19 23:09:31,288 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 23:09:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:31,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:09:31,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:09:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-19 23:09:31,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:09:31,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:09:31,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522322449] [2020-10-19 23:09:31,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:31,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:31,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:31,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:09:31,538 INFO L87 Difference]: Start difference. First operand 1116 states and 1363 transitions. Second operand 3 states. [2020-10-19 23:09:32,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:32,178 INFO L93 Difference]: Finished difference Result 1674 states and 2006 transitions. [2020-10-19 23:09:32,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:32,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 288 [2020-10-19 23:09:32,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:32,186 INFO L225 Difference]: With dead ends: 1674 [2020-10-19 23:09:32,186 INFO L226 Difference]: Without dead ends: 1672 [2020-10-19 23:09:32,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:09:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2020-10-19 23:09:32,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1116. [2020-10-19 23:09:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:09:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1363 transitions. [2020-10-19 23:09:32,214 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1363 transitions. Word has length 288 [2020-10-19 23:09:32,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:32,215 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1363 transitions. [2020-10-19 23:09:32,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1363 transitions. [2020-10-19 23:09:32,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-19 23:09:32,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:32,220 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, 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, 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 23:09:32,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:09:32,435 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:32,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:32,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1259614339, now seen corresponding path program 1 times [2020-10-19 23:09:32,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:32,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805742008] [2020-10-19 23:09:32,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:33,013 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 85 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:33,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805742008] [2020-10-19 23:09:33,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263964832] [2020-10-19 23:09:33,015 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 23:09:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:33,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:09:33,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:09:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-19 23:09:33,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:09:33,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:09:33,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460083841] [2020-10-19 23:09:33,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:33,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:33,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:33,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:09:33,360 INFO L87 Difference]: Start difference. First operand 1116 states and 1363 transitions. Second operand 3 states. [2020-10-19 23:09:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:34,032 INFO L93 Difference]: Finished difference Result 2369 states and 2958 transitions. [2020-10-19 23:09:34,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:34,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 290 [2020-10-19 23:09:34,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:34,045 INFO L225 Difference]: With dead ends: 2369 [2020-10-19 23:09:34,045 INFO L226 Difference]: Without dead ends: 1394 [2020-10-19 23:09:34,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 289 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:09:34,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-19 23:09:34,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-10-19 23:09:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:09:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1527 transitions. [2020-10-19 23:09:34,084 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1527 transitions. Word has length 290 [2020-10-19 23:09:34,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:34,086 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1527 transitions. [2020-10-19 23:09:34,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:34,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1527 transitions. [2020-10-19 23:09:34,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-19 23:09:34,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:34,093 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, 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, 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] [2020-10-19 23:09:34,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:09:34,309 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:34,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:34,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1842225074, now seen corresponding path program 1 times [2020-10-19 23:09:34,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:34,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689513764] [2020-10-19 23:09:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:34,553 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-19 23:09:34,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689513764] [2020-10-19 23:09:34,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:34,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:34,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749527471] [2020-10-19 23:09:34,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:34,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:34,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:34,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:34,556 INFO L87 Difference]: Start difference. First operand 1255 states and 1527 transitions. Second operand 3 states. [2020-10-19 23:09:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:35,163 INFO L93 Difference]: Finished difference Result 3064 states and 3738 transitions. [2020-10-19 23:09:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:35,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 340 [2020-10-19 23:09:35,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:35,174 INFO L225 Difference]: With dead ends: 3064 [2020-10-19 23:09:35,174 INFO L226 Difference]: Without dead ends: 1950 [2020-10-19 23:09:35,177 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 23:09:35,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2020-10-19 23:09:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1950. [2020-10-19 23:09:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2020-10-19 23:09:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2297 transitions. [2020-10-19 23:09:35,231 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2297 transitions. Word has length 340 [2020-10-19 23:09:35,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:35,232 INFO L481 AbstractCegarLoop]: Abstraction has 1950 states and 2297 transitions. [2020-10-19 23:09:35,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:35,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2297 transitions. [2020-10-19 23:09:35,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-10-19 23:09:35,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:35,240 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, 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, 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] [2020-10-19 23:09:35,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 23:09:35,241 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:35,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:35,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1758769876, now seen corresponding path program 1 times [2020-10-19 23:09:35,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:35,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257136220] [2020-10-19 23:09:35,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:35,512 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:09:35,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257136220] [2020-10-19 23:09:35,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:35,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:35,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422657807] [2020-10-19 23:09:35,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:35,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:35,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:35,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:35,515 INFO L87 Difference]: Start difference. First operand 1950 states and 2297 transitions. Second operand 3 states. [2020-10-19 23:09:36,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:36,183 INFO L93 Difference]: Finished difference Result 2091 states and 2462 transitions. [2020-10-19 23:09:36,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:36,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 353 [2020-10-19 23:09:36,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:36,196 INFO L225 Difference]: With dead ends: 2091 [2020-10-19 23:09:36,197 INFO L226 Difference]: Without dead ends: 2089 [2020-10-19 23:09:36,199 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 23:09:36,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-10-19 23:09:36,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1811. [2020-10-19 23:09:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2020-10-19 23:09:36,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2147 transitions. [2020-10-19 23:09:36,247 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2147 transitions. Word has length 353 [2020-10-19 23:09:36,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:36,248 INFO L481 AbstractCegarLoop]: Abstraction has 1811 states and 2147 transitions. [2020-10-19 23:09:36,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:36,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2147 transitions. [2020-10-19 23:09:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-19 23:09:36,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:36,257 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, 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, 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] [2020-10-19 23:09:36,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:09:36,258 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:36,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:36,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1095651397, now seen corresponding path program 1 times [2020-10-19 23:09:36,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:36,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731086941] [2020-10-19 23:09:36,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 17 proven. 111 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:09:36,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731086941] [2020-10-19 23:09:36,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298443148] [2020-10-19 23:09:36,935 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 23:09:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:37,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:09:37,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:09:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:09:37,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:09:37,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:09:37,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56950490] [2020-10-19 23:09:37,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:37,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:37,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:37,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:09:37,162 INFO L87 Difference]: Start difference. First operand 1811 states and 2147 transitions. Second operand 3 states. [2020-10-19 23:09:37,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:37,884 INFO L93 Difference]: Finished difference Result 3479 states and 4148 transitions. [2020-10-19 23:09:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:37,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 359 [2020-10-19 23:09:37,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:37,885 INFO L225 Difference]: With dead ends: 3479 [2020-10-19 23:09:37,885 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:09:37,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:09:37,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:09:37,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:09:37,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:09:37,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:09:37,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 359 [2020-10-19 23:09:37,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:37,890 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:09:37,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:37,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:09:37,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:09:38,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:09:38,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:09:38,300 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 22 [2020-10-19 23:09:38,444 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 22 [2020-10-19 23:09:38,448 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-19 23:09:38,448 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-19 23:09:38,448 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-19 23:09:38,449 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:09:38,449 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:09:38,449 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:09:38,449 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:09:38,449 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:09:38,449 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:09:38,449 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-19 23:09:38,449 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-19 23:09:38,449 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-19 23:09:38,450 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:09:38,450 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-19 23:09:38,450 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,450 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,450 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,451 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,451 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,451 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,451 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-19 23:09:38,451 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-19 23:09:38,451 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:09:38,452 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:09:38,452 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:09:38,452 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:09:38,452 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:09:38,452 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:09:38,452 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-19 23:09:38,452 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-19 23:09:38,452 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-19 23:09:38,453 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:09:38,454 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:09:38,454 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:09:38,454 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:09:38,454 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:09:38,454 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-19 23:09:38,454 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-19 23:09:38,454 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-19 23:09:38,454 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-19 23:09:38,454 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:09:38,455 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:09:38,456 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:09:38,456 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse2 (<= 7 ~a19~0)) (.cse1 (= ~a12~0 0))) (or (and (<= ~a10~0 0) .cse0 .cse1) (and .cse0 .cse2 .cse1 .cse3) (and (<= 3 ~a10~0) .cse0 .cse1 .cse3) (and (= ~a10~0 1) .cse0 .cse2 .cse1))) [2020-10-19 23:09:38,456 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-19 23:09:38,456 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-19 23:09:38,456 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-19 23:09:38,457 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-19 23:09:38,457 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,457 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,457 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,457 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,457 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,457 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-19 23:09:38,457 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-19 23:09:38,457 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-19 23:09:38,458 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:09:38,458 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:09:38,458 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:09:38,458 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:09:38,458 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:09:38,458 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-19 23:09:38,458 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-19 23:09:38,458 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-19 23:09:38,458 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-19 23:09:38,459 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-19 23:09:38,459 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-19 23:09:38,459 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,459 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,459 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,459 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,459 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,459 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:09:38,459 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:09:38,460 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:09:38,460 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:09:38,460 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:09:38,460 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-19 23:09:38,460 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-19 23:09:38,460 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-19 23:09:38,460 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:09:38,460 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-19 23:09:38,460 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,461 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,461 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,461 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,461 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,461 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-19 23:09:38,461 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-19 23:09:38,461 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-19 23:09:38,461 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-19 23:09:38,461 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:09:38,462 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:09:38,462 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:09:38,462 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:09:38,462 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:09:38,462 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-19 23:09:38,462 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-19 23:09:38,462 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-19 23:09:38,462 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse2 (<= 7 ~a19~0)) (.cse1 (= ~a12~0 0))) (or (and (<= ~a10~0 0) .cse0 .cse1) (and .cse0 .cse2 .cse1 .cse3) (and (<= 3 ~a10~0) .cse0 .cse1 .cse3) (and (= ~a10~0 1) .cse0 .cse2 .cse1))) [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-19 23:09:38,463 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-19 23:09:38,464 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-19 23:09:38,464 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:09:38,464 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:09:38,464 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:09:38,464 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:09:38,464 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:09:38,464 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:09:38,464 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-19 23:09:38,464 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-19 23:09:38,465 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:09:38,465 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-19 23:09:38,465 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-19 23:09:38,465 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,465 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,465 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,465 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,465 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,465 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,466 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-19 23:09:38,466 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-19 23:09:38,466 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-19 23:09:38,466 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:09:38,466 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:09:38,466 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:09:38,466 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:09:38,466 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:09:38,466 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,467 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,468 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,468 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,468 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,468 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-19 23:09:38,468 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:09:38,468 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:09:38,468 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:09:38,468 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:09:38,468 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:09:38,469 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:09:38,469 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-19 23:09:38,469 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-19 23:09:38,469 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-19 23:09:38,469 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-19 23:09:38,469 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-19 23:09:38,469 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-19 23:09:38,469 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,469 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,470 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,470 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,470 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,470 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:09:38,470 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,470 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:09:38,470 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-19 23:09:38,470 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-19 23:09:38,471 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-19 23:09:38,471 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:09:38,471 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:09:38,471 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:09:38,471 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:09:38,471 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:09:38,471 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:09:38,471 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-19 23:09:38,471 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-19 23:09:38,472 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-19 23:09:38,472 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,472 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,472 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,472 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,472 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,472 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:38,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:09:38 BoogieIcfgContainer [2020-10-19 23:09:38,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:09:38,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:09:38,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:09:38,499 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:09:38,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:09:22" (3/4) ... [2020-10-19 23:09:38,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:09:38,530 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:09:38,531 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:09:38,532 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:09:38,534 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:09:38,720 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:09:38,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:09:38,722 INFO L168 Benchmark]: Toolchain (without parser) took 18668.89 ms. Allocated memory was 40.9 MB in the beginning and 215.0 MB in the end (delta: 174.1 MB). Free memory was 17.5 MB in the beginning and 82.0 MB in the end (delta: -64.6 MB). Peak memory consumption was 109.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:38,723 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 31.5 MB. Free memory was 7.7 MB in the beginning and 7.6 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-19 23:09:38,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.37 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 16.5 MB in the beginning and 11.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:38,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.39 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 11.9 MB in the beginning and 19.6 MB in the end (delta: -7.7 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:38,724 INFO L168 Benchmark]: Boogie Preprocessor took 121.71 ms. Allocated memory is still 43.5 MB. Free memory was 19.6 MB in the beginning and 14.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:38,725 INFO L168 Benchmark]: RCFGBuilder took 1742.49 ms. Allocated memory was 43.5 MB in the beginning and 52.4 MB in the end (delta: 8.9 MB). Free memory was 14.1 MB in the beginning and 10.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:38,725 INFO L168 Benchmark]: TraceAbstraction took 15789.08 ms. Allocated memory was 52.4 MB in the beginning and 215.0 MB in the end (delta: 162.5 MB). Free memory was 9.9 MB in the beginning and 102.4 MB in the end (delta: -92.5 MB). Peak memory consumption was 70.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:38,726 INFO L168 Benchmark]: Witness Printer took 222.15 ms. Allocated memory is still 215.0 MB. Free memory was 102.4 MB in the beginning and 82.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:38,729 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 7.7 MB in the beginning and 7.6 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 643.37 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 16.5 MB in the beginning and 11.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 135.39 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 11.9 MB in the beginning and 19.6 MB in the end (delta: -7.7 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 121.71 ms. Allocated memory is still 43.5 MB. Free memory was 19.6 MB in the beginning and 14.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1742.49 ms. Allocated memory was 43.5 MB in the beginning and 52.4 MB in the end (delta: 8.9 MB). Free memory was 14.1 MB in the beginning and 10.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 15789.08 ms. Allocated memory was 52.4 MB in the beginning and 215.0 MB in the end (delta: 162.5 MB). Free memory was 9.9 MB in the beginning and 102.4 MB in the end (delta: -92.5 MB). Peak memory consumption was 70.0 MB. Max. memory is 14.3 GB. * Witness Printer took 222.15 ms. Allocated memory is still 215.0 MB. Free memory was 102.4 MB in the beginning and 82.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 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: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((a10 <= 0 && 14 == a4) && a12 == 0) || (((14 == a4 && 7 <= a19) && a12 == 0) && a19 <= 9)) || (((3 <= a10 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((a10 <= 0 && 14 == a4) && a12 == 0) || (((14 == a4 && 7 <= a19) && a12 == 0) && a19 <= 9)) || (((3 <= a10 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.2s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1044 SDtfs, 1378 SDslu, 62 SDs, 0 SdLazy, 4662 SolverSat, 835 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1086 GetRequests, 1056 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1950occurred 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: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 1401 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 33 NumberOfFragments, 101 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2058 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 620 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 3692 NumberOfCodeBlocks, 3692 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3676 ConstructedInterpolants, 0 QuantifiedInterpolants, 4016256 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1523 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 2678/2997 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...