./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label27.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_label27.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 c5e3875551eafe0fa0c925ac4938c17ca6705d7b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:10:08,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:10:08,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:10:08,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:10:08,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:10:08,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:10:08,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:10:08,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:10:08,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:10:08,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:10:08,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:10:08,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:10:08,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:10:08,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:10:08,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:10:08,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:10:08,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:10:08,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:10:08,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:10:08,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:10:08,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:10:08,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:10:08,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:10:08,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:10:08,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:10:08,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:10:08,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:10:08,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:10:08,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:10:08,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:10:08,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:10:08,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:10:08,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:10:08,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:10:08,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:10:08,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:10:08,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:10:08,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:10:08,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:10:08,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:10:08,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:10:08,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:10:08,843 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:10:08,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:10:08,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:10:08,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:10:08,846 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:10:08,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:10:08,847 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:10:08,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:10:08,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:10:08,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:10:08,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:10:08,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:10:08,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:10:08,850 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:10:08,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:10:08,850 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:10:08,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:10:08,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:10:08,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:10:08,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:10:08,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:10:08,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:10:08,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:10:08,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:10:08,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:10:08,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:10:08,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:10:08,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:10:08,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:10:08,854 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 -> c5e3875551eafe0fa0c925ac4938c17ca6705d7b [2020-10-19 23:10:09,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:10:09,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:10:09,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:10:09,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:10:09,091 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:10:09,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label27.c [2020-10-19 23:10:09,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420506b8d/dda47418c85947ca823d37e3baa2369d/FLAGf8d6740d8 [2020-10-19 23:10:09,801 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:10:09,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label27.c [2020-10-19 23:10:09,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420506b8d/dda47418c85947ca823d37e3baa2369d/FLAGf8d6740d8 [2020-10-19 23:10:10,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420506b8d/dda47418c85947ca823d37e3baa2369d [2020-10-19 23:10:10,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:10:10,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:10:10,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:10,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:10:10,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:10:10,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:10,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e46d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10, skipping insertion in model container [2020-10-19 23:10:10,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:10,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:10:10,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:10:10,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:10,628 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:10:10,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:10,797 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:10:10,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10 WrapperNode [2020-10-19 23:10:10,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:10,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:10,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:10:10,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:10:10,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:10,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:10,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:10,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:10:10,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:10:10,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:10:10,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:10,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:10,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:10,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:10,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:10,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:11,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... [2020-10-19 23:10:11,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:10:11,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:10:11,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:10:11,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:10:11,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:10:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:10:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:10:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:10:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:10:12,711 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:10:12,712 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:10:12,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:12 BoogieIcfgContainer [2020-10-19 23:10:12,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:10:12,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:10:12,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:10:12,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:10:12,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:10:10" (1/3) ... [2020-10-19 23:10:12,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2cf267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:12, skipping insertion in model container [2020-10-19 23:10:12,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:10" (2/3) ... [2020-10-19 23:10:12,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2cf267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:12, skipping insertion in model container [2020-10-19 23:10:12,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:12" (3/3) ... [2020-10-19 23:10:12,725 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label27.c [2020-10-19 23:10:12,738 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:10:12,748 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:10:12,763 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:10:12,792 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:10:12,793 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:10:12,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:10:12,793 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:10:12,794 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:10:12,794 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:10:12,794 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:10:12,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:10:12,816 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-19 23:10:12,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-19 23:10:12,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:12,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:12,829 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:12,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:12,836 INFO L82 PathProgramCache]: Analyzing trace with hash -634083006, now seen corresponding path program 1 times [2020-10-19 23:10:12,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:12,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250902108] [2020-10-19 23:10:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:13,338 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 23:10:13,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250902108] [2020-10-19 23:10:13,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:13,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:13,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089470718] [2020-10-19 23:10:13,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:13,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:13,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:13,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:13,364 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-19 23:10:14,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:14,375 INFO L93 Difference]: Finished difference Result 553 states and 967 transitions. [2020-10-19 23:10:14,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:14,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-10-19 23:10:14,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:14,394 INFO L225 Difference]: With dead ends: 553 [2020-10-19 23:10:14,394 INFO L226 Difference]: Without dead ends: 282 [2020-10-19 23:10:14,399 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 23:10:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-19 23:10:14,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-19 23:10:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-19 23:10:14,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2020-10-19 23:10:14,463 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 60 [2020-10-19 23:10:14,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:14,464 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2020-10-19 23:10:14,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:14,464 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2020-10-19 23:10:14,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-19 23:10:14,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:14,470 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:14,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:10:14,471 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:14,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:14,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1150916914, now seen corresponding path program 1 times [2020-10-19 23:10:14,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:14,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575252468] [2020-10-19 23:10:14,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:14,833 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-19 23:10:14,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575252468] [2020-10-19 23:10:14,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943078725] [2020-10-19 23:10:14,835 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 23:10:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:14,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:10:14,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:10:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-19 23:10:15,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:10:15,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 23:10:15,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051751562] [2020-10-19 23:10:15,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:15,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:15,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:15,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:10:15,018 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand 3 states. [2020-10-19 23:10:15,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:15,671 INFO L93 Difference]: Finished difference Result 562 states and 752 transitions. [2020-10-19 23:10:15,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:15,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-10-19 23:10:15,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:15,677 INFO L225 Difference]: With dead ends: 562 [2020-10-19 23:10:15,677 INFO L226 Difference]: Without dead ends: 560 [2020-10-19 23:10:15,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 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 23:10:15,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-19 23:10:15,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 421. [2020-10-19 23:10:15,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-19 23:10:15,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 591 transitions. [2020-10-19 23:10:15,715 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 591 transitions. Word has length 126 [2020-10-19 23:10:15,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:15,717 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 591 transitions. [2020-10-19 23:10:15,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 591 transitions. [2020-10-19 23:10:15,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-19 23:10:15,721 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:15,721 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:15,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-19 23:10:15,923 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:15,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:15,923 INFO L82 PathProgramCache]: Analyzing trace with hash 119982509, now seen corresponding path program 1 times [2020-10-19 23:10:15,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:15,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7217157] [2020-10-19 23:10:15,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:16,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7217157] [2020-10-19 23:10:16,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:16,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:16,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545241788] [2020-10-19 23:10:16,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:16,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:16,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:16,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:16,091 INFO L87 Difference]: Start difference. First operand 421 states and 591 transitions. Second operand 3 states. [2020-10-19 23:10:16,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:16,833 INFO L93 Difference]: Finished difference Result 1118 states and 1553 transitions. [2020-10-19 23:10:16,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:16,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-10-19 23:10:16,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:16,838 INFO L225 Difference]: With dead ends: 1118 [2020-10-19 23:10:16,838 INFO L226 Difference]: Without dead ends: 699 [2020-10-19 23:10:16,841 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 23:10:16,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-19 23:10:16,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-19 23:10:16,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:10:16,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 904 transitions. [2020-10-19 23:10:16,861 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 904 transitions. Word has length 129 [2020-10-19 23:10:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:16,862 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 904 transitions. [2020-10-19 23:10:16,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 904 transitions. [2020-10-19 23:10:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-19 23:10:16,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:16,866 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:10:16,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:10:16,866 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:16,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:16,867 INFO L82 PathProgramCache]: Analyzing trace with hash 741392606, now seen corresponding path program 1 times [2020-10-19 23:10:16,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:16,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576299387] [2020-10-19 23:10:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:17,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576299387] [2020-10-19 23:10:17,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:17,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 23:10:17,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651338019] [2020-10-19 23:10:17,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:10:17,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:17,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:10:17,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:17,082 INFO L87 Difference]: Start difference. First operand 699 states and 904 transitions. Second operand 7 states. [2020-10-19 23:10:17,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:17,899 INFO L93 Difference]: Finished difference Result 1451 states and 1861 transitions. [2020-10-19 23:10:17,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 23:10:17,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-10-19 23:10:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:17,906 INFO L225 Difference]: With dead ends: 1451 [2020-10-19 23:10:17,906 INFO L226 Difference]: Without dead ends: 699 [2020-10-19 23:10:17,908 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 23:10:17,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-19 23:10:17,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-19 23:10:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:10:17,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 899 transitions. [2020-10-19 23:10:17,923 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 899 transitions. Word has length 135 [2020-10-19 23:10:17,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:17,923 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 899 transitions. [2020-10-19 23:10:17,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:10:17,924 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 899 transitions. [2020-10-19 23:10:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-19 23:10:17,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:17,928 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 23:10:17,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:10:17,928 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:17,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:17,929 INFO L82 PathProgramCache]: Analyzing trace with hash 3523452, now seen corresponding path program 1 times [2020-10-19 23:10:17,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:17,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040891718] [2020-10-19 23:10:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:18,051 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:18,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040891718] [2020-10-19 23:10:18,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:18,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:18,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883414502] [2020-10-19 23:10:18,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:18,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:18,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:18,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:18,054 INFO L87 Difference]: Start difference. First operand 699 states and 899 transitions. Second operand 3 states. [2020-10-19 23:10:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:18,814 INFO L93 Difference]: Finished difference Result 1674 states and 2173 transitions. [2020-10-19 23:10:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:18,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-10-19 23:10:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:18,822 INFO L225 Difference]: With dead ends: 1674 [2020-10-19 23:10:18,823 INFO L226 Difference]: Without dead ends: 977 [2020-10-19 23:10:18,825 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 23:10:18,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-19 23:10:18,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2020-10-19 23:10:18,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-10-19 23:10:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1198 transitions. [2020-10-19 23:10:18,854 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1198 transitions. Word has length 204 [2020-10-19 23:10:18,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:18,855 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1198 transitions. [2020-10-19 23:10:18,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1198 transitions. [2020-10-19 23:10:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-19 23:10:18,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:18,863 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:10:18,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:10:18,865 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:18,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:18,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1361305873, now seen corresponding path program 1 times [2020-10-19 23:10:18,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:18,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003280001] [2020-10-19 23:10:18,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-10-19 23:10:19,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003280001] [2020-10-19 23:10:19,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:19,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:19,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960176348] [2020-10-19 23:10:19,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:19,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:19,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:19,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:19,142 INFO L87 Difference]: Start difference. First operand 977 states and 1198 transitions. Second operand 3 states. [2020-10-19 23:10:19,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:19,898 INFO L93 Difference]: Finished difference Result 2091 states and 2542 transitions. [2020-10-19 23:10:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:19,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-10-19 23:10:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:19,904 INFO L225 Difference]: With dead ends: 2091 [2020-10-19 23:10:19,905 INFO L226 Difference]: Without dead ends: 1116 [2020-10-19 23:10:19,907 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 23:10:19,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-19 23:10:19,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-10-19 23:10:19,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:10:19,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1341 transitions. [2020-10-19 23:10:19,930 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1341 transitions. Word has length 211 [2020-10-19 23:10:19,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:19,930 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1341 transitions. [2020-10-19 23:10:19,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:19,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1341 transitions. [2020-10-19 23:10:19,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-19 23:10:19,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:19,935 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 23:10:19,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:10:19,935 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:19,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:19,936 INFO L82 PathProgramCache]: Analyzing trace with hash 222774834, now seen corresponding path program 1 times [2020-10-19 23:10:19,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:19,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30992102] [2020-10-19 23:10:19,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:20,117 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:20,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30992102] [2020-10-19 23:10:20,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:20,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:20,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110293223] [2020-10-19 23:10:20,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:20,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:20,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:20,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:20,120 INFO L87 Difference]: Start difference. First operand 1116 states and 1341 transitions. Second operand 3 states. [2020-10-19 23:10:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:20,778 INFO L93 Difference]: Finished difference Result 2369 states and 2914 transitions. [2020-10-19 23:10:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:20,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-10-19 23:10:20,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:20,787 INFO L225 Difference]: With dead ends: 2369 [2020-10-19 23:10:20,788 INFO L226 Difference]: Without dead ends: 1394 [2020-10-19 23:10:20,790 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 23:10:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-19 23:10:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-10-19 23:10:20,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:20,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1456 transitions. [2020-10-19 23:10:20,827 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1456 transitions. Word has length 249 [2020-10-19 23:10:20,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:20,828 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1456 transitions. [2020-10-19 23:10:20,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:20,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1456 transitions. [2020-10-19 23:10:20,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-19 23:10:20,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:20,837 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:10:20,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:10:20,838 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:20,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:20,838 INFO L82 PathProgramCache]: Analyzing trace with hash -555604661, now seen corresponding path program 1 times [2020-10-19 23:10:20,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:20,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229351331] [2020-10-19 23:10:20,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-19 23:10:21,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229351331] [2020-10-19 23:10:21,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:21,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:21,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844860427] [2020-10-19 23:10:21,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:21,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:21,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:21,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:21,114 INFO L87 Difference]: Start difference. First operand 1255 states and 1456 transitions. Second operand 3 states. [2020-10-19 23:10:21,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:21,706 INFO L93 Difference]: Finished difference Result 1813 states and 2098 transitions. [2020-10-19 23:10:21,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:21,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2020-10-19 23:10:21,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:21,715 INFO L225 Difference]: With dead ends: 1813 [2020-10-19 23:10:21,715 INFO L226 Difference]: Without dead ends: 1811 [2020-10-19 23:10:21,716 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 23:10:21,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2020-10-19 23:10:21,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1255. [2020-10-19 23:10:21,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:21,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1456 transitions. [2020-10-19 23:10:21,743 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1456 transitions. Word has length 303 [2020-10-19 23:10:21,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:21,744 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1456 transitions. [2020-10-19 23:10:21,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1456 transitions. [2020-10-19 23:10:21,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-19 23:10:21,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:21,751 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 23:10:21,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:10:21,751 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:21,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:21,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1863869209, now seen corresponding path program 1 times [2020-10-19 23:10:21,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:21,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448073050] [2020-10-19 23:10:21,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:21,977 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-10-19 23:10:21,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448073050] [2020-10-19 23:10:21,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:21,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:21,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890606974] [2020-10-19 23:10:21,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:21,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:21,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:21,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:21,980 INFO L87 Difference]: Start difference. First operand 1255 states and 1456 transitions. Second operand 3 states. [2020-10-19 23:10:22,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:22,600 INFO L93 Difference]: Finished difference Result 3203 states and 3730 transitions. [2020-10-19 23:10:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:22,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2020-10-19 23:10:22,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:22,611 INFO L225 Difference]: With dead ends: 3203 [2020-10-19 23:10:22,611 INFO L226 Difference]: Without dead ends: 2089 [2020-10-19 23:10:22,613 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 23:10:22,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-10-19 23:10:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1672. [2020-10-19 23:10:22,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2020-10-19 23:10:22,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1952 transitions. [2020-10-19 23:10:22,651 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1952 transitions. Word has length 338 [2020-10-19 23:10:22,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:22,652 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1952 transitions. [2020-10-19 23:10:22,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1952 transitions. [2020-10-19 23:10:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-19 23:10:22,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:22,662 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 23:10:22,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:10:22,662 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:22,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:22,663 INFO L82 PathProgramCache]: Analyzing trace with hash -676259110, now seen corresponding path program 1 times [2020-10-19 23:10:22,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:22,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326191783] [2020-10-19 23:10:22,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:22,991 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-19 23:10:22,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326191783] [2020-10-19 23:10:22,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:22,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:22,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673914388] [2020-10-19 23:10:22,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:22,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:22,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:22,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:22,999 INFO L87 Difference]: Start difference. First operand 1672 states and 1952 transitions. Second operand 3 states. [2020-10-19 23:10:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:23,697 INFO L93 Difference]: Finished difference Result 3898 states and 4557 transitions. [2020-10-19 23:10:23,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:23,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 355 [2020-10-19 23:10:23,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:23,710 INFO L225 Difference]: With dead ends: 3898 [2020-10-19 23:10:23,711 INFO L226 Difference]: Without dead ends: 2367 [2020-10-19 23:10:23,714 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 23:10:23,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2020-10-19 23:10:23,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2367. [2020-10-19 23:10:23,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2367 states. [2020-10-19 23:10:23,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 2712 transitions. [2020-10-19 23:10:23,766 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 2712 transitions. Word has length 355 [2020-10-19 23:10:23,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:23,767 INFO L481 AbstractCegarLoop]: Abstraction has 2367 states and 2712 transitions. [2020-10-19 23:10:23,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 2712 transitions. [2020-10-19 23:10:23,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-19 23:10:23,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:23,773 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:23,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 23:10:23,773 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:23,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:23,774 INFO L82 PathProgramCache]: Analyzing trace with hash 264074683, now seen corresponding path program 1 times [2020-10-19 23:10:23,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:23,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024156021] [2020-10-19 23:10:23,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-19 23:10:24,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024156021] [2020-10-19 23:10:24,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:24,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:24,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562748230] [2020-10-19 23:10:24,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:24,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:24,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:24,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:24,054 INFO L87 Difference]: Start difference. First operand 2367 states and 2712 transitions. Second operand 3 states. [2020-10-19 23:10:24,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:24,703 INFO L93 Difference]: Finished difference Result 5149 states and 6003 transitions. [2020-10-19 23:10:24,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:24,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 359 [2020-10-19 23:10:24,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:24,721 INFO L225 Difference]: With dead ends: 5149 [2020-10-19 23:10:24,721 INFO L226 Difference]: Without dead ends: 2923 [2020-10-19 23:10:24,724 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 23:10:24,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2020-10-19 23:10:24,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2645. [2020-10-19 23:10:24,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2020-10-19 23:10:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3015 transitions. [2020-10-19 23:10:24,780 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3015 transitions. Word has length 359 [2020-10-19 23:10:24,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:24,781 INFO L481 AbstractCegarLoop]: Abstraction has 2645 states and 3015 transitions. [2020-10-19 23:10:24,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3015 transitions. [2020-10-19 23:10:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-19 23:10:24,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:24,788 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 23:10:24,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:10:24,788 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:24,789 INFO L82 PathProgramCache]: Analyzing trace with hash -582253188, now seen corresponding path program 1 times [2020-10-19 23:10:24,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:24,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142823466] [2020-10-19 23:10:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:10:25,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142823466] [2020-10-19 23:10:25,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:25,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:25,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782948013] [2020-10-19 23:10:25,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:25,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:25,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:25,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:25,042 INFO L87 Difference]: Start difference. First operand 2645 states and 3015 transitions. Second operand 3 states. [2020-10-19 23:10:25,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:25,757 INFO L93 Difference]: Finished difference Result 3620 states and 4141 transitions. [2020-10-19 23:10:25,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:25,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 368 [2020-10-19 23:10:25,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:25,771 INFO L225 Difference]: With dead ends: 3620 [2020-10-19 23:10:25,771 INFO L226 Difference]: Without dead ends: 3618 [2020-10-19 23:10:25,772 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 23:10:25,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2020-10-19 23:10:25,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 2506. [2020-10-19 23:10:25,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2506 states. [2020-10-19 23:10:25,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 2865 transitions. [2020-10-19 23:10:25,829 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 2865 transitions. Word has length 368 [2020-10-19 23:10:25,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:25,830 INFO L481 AbstractCegarLoop]: Abstraction has 2506 states and 2865 transitions. [2020-10-19 23:10:25,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 2865 transitions. [2020-10-19 23:10:25,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-10-19 23:10:25,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:25,836 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-19 23:10:25,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 23:10:25,837 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:25,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:25,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1903663936, now seen corresponding path program 1 times [2020-10-19 23:10:25,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:25,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655820422] [2020-10-19 23:10:25,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:10:26,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655820422] [2020-10-19 23:10:26,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:26,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:26,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186848188] [2020-10-19 23:10:26,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:26,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:26,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:26,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:26,105 INFO L87 Difference]: Start difference. First operand 2506 states and 2865 transitions. Second operand 3 states. [2020-10-19 23:10:26,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:26,744 INFO L93 Difference]: Finished difference Result 4869 states and 5584 transitions. [2020-10-19 23:10:26,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:26,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 373 [2020-10-19 23:10:26,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:26,746 INFO L225 Difference]: With dead ends: 4869 [2020-10-19 23:10:26,746 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:10:26,751 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 23:10:26,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:10:26,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:10:26,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:10:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:10:26,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 373 [2020-10-19 23:10:26,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:26,753 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:10:26,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:26,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:10:26,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:10:26,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 23:10:26,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:10:26,999 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2020-10-19 23:10:27,145 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2020-10-19 23:10:27,148 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-19 23:10:27,148 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-19 23:10:27,149 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-19 23:10:27,149 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:10:27,149 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:10:27,149 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:10:27,149 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:10:27,149 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:10:27,150 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:10:27,150 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-19 23:10:27,150 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-19 23:10:27,150 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-19 23:10:27,150 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:10:27,150 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-19 23:10:27,150 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,150 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,150 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,151 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,151 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,151 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,152 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-19 23:10:27,152 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-19 23:10:27,152 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:10:27,152 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:10:27,152 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:10:27,152 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:10:27,153 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:10:27,153 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:10:27,153 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-19 23:10:27,153 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-19 23:10:27,153 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-19 23:10:27,154 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,154 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,154 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,154 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,154 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,154 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-19 23:10:27,155 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-19 23:10:27,155 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-19 23:10:27,155 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-19 23:10:27,155 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:10:27,155 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:10:27,155 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:10:27,156 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:10:27,156 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:10:27,156 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-19 23:10:27,156 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-19 23:10:27,156 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-19 23:10:27,156 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-19 23:10:27,157 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-19 23:10:27,157 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,157 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,157 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,157 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,157 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,158 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-19 23:10:27,158 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:10:27,158 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:10:27,158 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:10:27,158 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:10:27,158 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:10:27,159 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse1 (= ~a10~0 2)) (.cse3 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (<= 0 ~a1~0) .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse3 (= ~a10~0 4)) (and (<= 8 ~a19~0) .cse0 .cse1 .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and .cse0 (= ~a10~0 0) .cse2) (and (= ~a10~0 1) .cse0 .cse2))) [2020-10-19 23:10:27,159 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-19 23:10:27,160 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-19 23:10:27,160 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-19 23:10:27,160 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-19 23:10:27,160 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,160 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,160 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,161 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,161 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,161 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-19 23:10:27,161 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-19 23:10:27,161 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-19 23:10:27,162 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:10:27,162 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:10:27,162 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:10:27,162 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:10:27,162 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:10:27,162 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-19 23:10:27,163 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-19 23:10:27,163 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-19 23:10:27,163 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-19 23:10:27,163 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-19 23:10:27,163 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-19 23:10:27,164 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,164 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,164 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,164 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,164 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,165 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:10:27,165 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:10:27,165 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:10:27,165 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:10:27,165 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:10:27,165 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-19 23:10:27,166 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-19 23:10:27,166 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-19 23:10:27,166 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:10:27,166 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-19 23:10:27,166 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,166 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,167 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,167 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,167 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,167 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-19 23:10:27,167 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-19 23:10:27,167 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-19 23:10:27,168 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-19 23:10:27,168 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:10:27,168 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:10:27,168 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:10:27,168 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:10:27,169 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:10:27,169 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-19 23:10:27,169 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-19 23:10:27,169 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-19 23:10:27,169 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse1 (= ~a10~0 2)) (.cse3 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (<= 0 ~a1~0) .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse3 (= ~a10~0 4)) (and (<= 8 ~a19~0) .cse0 .cse1 .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and .cse0 (= ~a10~0 0) .cse2) (and (= ~a10~0 1) .cse0 .cse2))) [2020-10-19 23:10:27,170 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-19 23:10:27,178 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,178 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,179 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,179 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,179 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:10:27,179 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,179 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,179 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-19 23:10:27,180 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-19 23:10:27,180 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-19 23:10:27,180 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:10:27,180 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:10:27,180 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:10:27,180 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:10:27,181 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:10:27,181 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:10:27,181 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-19 23:10:27,181 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-19 23:10:27,181 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:10:27,181 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-19 23:10:27,182 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-19 23:10:27,182 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,182 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,182 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,182 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,182 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,183 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,183 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-19 23:10:27,183 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-19 23:10:27,183 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-19 23:10:27,183 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:10:27,183 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:10:27,184 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:10:27,184 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:10:27,184 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:10:27,184 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:10:27,184 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-19 23:10:27,184 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-19 23:10:27,185 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-19 23:10:27,185 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:10:27,185 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-19 23:10:27,185 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-19 23:10:27,185 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-19 23:10:27,185 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,186 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,186 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,186 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,186 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,186 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,186 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-19 23:10:27,187 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:10:27,187 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:10:27,187 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:10:27,187 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:10:27,187 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:10:27,187 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:10:27,188 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-19 23:10:27,188 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-19 23:10:27,188 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-19 23:10:27,188 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-19 23:10:27,188 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-19 23:10:27,188 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-19 23:10:27,189 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,189 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,189 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,189 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,189 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,189 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:10:27,190 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,190 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:10:27,190 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-19 23:10:27,190 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-19 23:10:27,190 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-19 23:10:27,190 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:10:27,191 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:10:27,191 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:10:27,191 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:10:27,191 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:10:27,191 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:10:27,191 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-19 23:10:27,192 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-19 23:10:27,192 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-19 23:10:27,192 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,192 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,192 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,192 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,193 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,193 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:27,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:10:27 BoogieIcfgContainer [2020-10-19 23:10:27,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:10:27,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:10:27,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:10:27,218 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:10:27,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:12" (3/4) ... [2020-10-19 23:10:27,222 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:10:27,245 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:10:27,246 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:10:27,247 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:27,249 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:27,426 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:10:27,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:10:27,429 INFO L168 Benchmark]: Toolchain (without parser) took 17344.08 ms. Allocated memory was 36.2 MB in the beginning and 216.0 MB in the end (delta: 179.8 MB). Free memory was 17.8 MB in the beginning and 158.3 MB in the end (delta: -140.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:27,429 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 12.1 MB in the beginning and 12.1 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-19 23:10:27,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.23 ms. Allocated memory was 36.2 MB in the beginning and 45.6 MB in the end (delta: 9.4 MB). Free memory was 17.0 MB in the beginning and 21.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:27,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.59 ms. Allocated memory is still 45.6 MB. Free memory was 20.9 MB in the beginning and 12.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:27,431 INFO L168 Benchmark]: Boogie Preprocessor took 134.64 ms. Allocated memory was 45.6 MB in the beginning and 46.1 MB in the end (delta: 524.3 kB). Free memory was 12.9 MB in the beginning and 20.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 6.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:27,431 INFO L168 Benchmark]: RCFGBuilder took 1679.73 ms. Allocated memory was 46.1 MB in the beginning and 58.2 MB in the end (delta: 12.1 MB). Free memory was 20.7 MB in the beginning and 21.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:27,432 INFO L168 Benchmark]: TraceAbstraction took 14501.19 ms. Allocated memory was 58.2 MB in the beginning and 216.0 MB in the end (delta: 157.8 MB). Free memory was 21.2 MB in the beginning and 178.9 MB in the end (delta: -157.7 MB). Peak memory consumption was 152.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:27,432 INFO L168 Benchmark]: Witness Printer took 209.81 ms. Allocated memory is still 216.0 MB. Free memory was 178.9 MB in the beginning and 158.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:27,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 12.1 MB in the beginning and 12.1 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 709.23 ms. Allocated memory was 36.2 MB in the beginning and 45.6 MB in the end (delta: 9.4 MB). Free memory was 17.0 MB in the beginning and 21.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 98.59 ms. Allocated memory is still 45.6 MB. Free memory was 20.9 MB in the beginning and 12.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 134.64 ms. Allocated memory was 45.6 MB in the beginning and 46.1 MB in the end (delta: 524.3 kB). Free memory was 12.9 MB in the beginning and 20.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 6.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1679.73 ms. Allocated memory was 46.1 MB in the beginning and 58.2 MB in the end (delta: 12.1 MB). Free memory was 20.7 MB in the beginning and 21.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 14501.19 ms. Allocated memory was 58.2 MB in the beginning and 216.0 MB in the end (delta: 157.8 MB). Free memory was 21.2 MB in the beginning and 178.9 MB in the end (delta: -157.7 MB). Peak memory consumption was 152.1 MB. Max. memory is 14.3 GB. * Witness Printer took 209.81 ms. Allocated memory is still 216.0 MB. Free memory was 178.9 MB in the beginning and 158.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 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: ((((((((14 == a4 && 0 <= a1) && a10 == 2) && a12 == 0) && a19 <= 9) || (((14 == a4 && a12 == 0) && a19 <= 9) && a10 == 4)) || ((((8 <= a19 && 14 == a4) && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || ((14 == a4 && a10 == 0) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((((14 == a4 && 0 <= a1) && a10 == 2) && a12 == 0) && a19 <= 9) || (((14 == a4 && a12 == 0) && a19 <= 9) && a10 == 4)) || ((((8 <= a19 && 14 == a4) && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || ((14 == a4 && a10 == 0) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.9s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1495 SDtfs, 1228 SDslu, 67 SDs, 0 SdLazy, 5090 SolverSat, 730 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2645occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 2641 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 159 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2314 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 482 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 3336 NumberOfCodeBlocks, 3336 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3322 ConstructedInterpolants, 0 QuantifiedInterpolants, 1712010 SizeOfPredicates, 1 NumberOfNonLiveVariables, 218 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 3132/3157 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...