./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/product-lines/minepump_spec1_product42.cil.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:24:24,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:24:24,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:24:24,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:24:24,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:24:24,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:24:24,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:24:24,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:24:24,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:24:24,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:24:24,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:24:24,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:24:24,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:24:24,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:24:24,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:24:24,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:24:24,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:24:24,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:24:24,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:24:24,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:24:24,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:24:24,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:24:24,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:24:24,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:24:24,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:24:24,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:24:24,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:24:24,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:24:24,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:24:24,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:24:24,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:24:24,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:24:24,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:24:24,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:24:24,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:24:24,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:24:24,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:24:24,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:24:24,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:24:24,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:24:24,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:24:24,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:24:24,769 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:24:24,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:24:24,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:24:24,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:24:24,771 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:24:24,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:24:24,771 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:24:24,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:24:24,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:24:24,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:24:24,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:24:24,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:24:24,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:24:24,773 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:24:24,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:24:24,773 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:24:24,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:24:24,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:24:24,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:24:24,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:24:24,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:24:24,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:24:24,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:24:24,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:24:24,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:24:24,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:24:24,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:24:24,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:24:24,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:24:24,776 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(__VERIFIER_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 -> 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 [2019-11-28 17:24:25,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:24:25,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:24:25,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:24:25,108 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:24:25,109 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:24:25,110 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-28 17:24:25,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/410aa5e4e/62f1d120047a4f4da62453065d93d288/FLAG0c3092deb [2019-11-28 17:24:25,715 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:24:25,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-28 17:24:25,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/410aa5e4e/62f1d120047a4f4da62453065d93d288/FLAG0c3092deb [2019-11-28 17:24:26,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/410aa5e4e/62f1d120047a4f4da62453065d93d288 [2019-11-28 17:24:26,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:24:26,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:24:26,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:24:26,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:24:26,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:24:26,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff82080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26, skipping insertion in model container [2019-11-28 17:24:26,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:24:26,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:24:26,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:24:26,515 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:24:26,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:24:26,682 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:24:26,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26 WrapperNode [2019-11-28 17:24:26,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:24:26,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:24:26,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:24:26,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:24:26,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:24:26,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:24:26,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:24:26,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:24:26,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (1/1) ... [2019-11-28 17:24:26,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:24:26,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:24:26,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:24:26,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:24:26,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (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 [2019-11-28 17:24:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:24:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 17:24:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:24:26,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:24:27,774 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:24:27,775 INFO L287 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-28 17:24:27,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:24:27 BoogieIcfgContainer [2019-11-28 17:24:27,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:24:27,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:24:27,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:24:27,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:24:27,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:24:26" (1/3) ... [2019-11-28 17:24:27,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a58be6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:24:27, skipping insertion in model container [2019-11-28 17:24:27,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:24:26" (2/3) ... [2019-11-28 17:24:27,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a58be6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:24:27, skipping insertion in model container [2019-11-28 17:24:27,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:24:27" (3/3) ... [2019-11-28 17:24:27,791 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2019-11-28 17:24:27,804 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:24:27,811 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 17:24:27,823 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 17:24:27,853 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:24:27,853 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:24:27,854 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:24:27,854 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:24:27,855 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:24:27,855 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:24:27,855 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:24:27,855 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:24:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-11-28 17:24:27,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 17:24:27,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:27,884 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:24:27,885 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:27,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:27,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1594902839, now seen corresponding path program 1 times [2019-11-28 17:24:27,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:27,900 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327990650] [2019-11-28 17:24:27,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:28,189 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327990650] [2019-11-28 17:24:28,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:28,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:24:28,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335769830] [2019-11-28 17:24:28,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:24:28,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:28,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:24:28,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:24:28,219 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2019-11-28 17:24:28,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:28,255 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2019-11-28 17:24:28,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:24:28,257 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-28 17:24:28,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:28,274 INFO L225 Difference]: With dead ends: 168 [2019-11-28 17:24:28,275 INFO L226 Difference]: Without dead ends: 83 [2019-11-28 17:24:28,283 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:24:28,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-28 17:24:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-11-28 17:24:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-28 17:24:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-11-28 17:24:28,339 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2019-11-28 17:24:28,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:28,339 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-11-28 17:24:28,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:24:28,339 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2019-11-28 17:24:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 17:24:28,341 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:28,341 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:24:28,341 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:28,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:28,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1653307560, now seen corresponding path program 1 times [2019-11-28 17:24:28,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:28,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203658973] [2019-11-28 17:24:28,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:28,490 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203658973] [2019-11-28 17:24:28,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:28,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:24:28,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317305826] [2019-11-28 17:24:28,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:24:28,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:28,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:24:28,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:24:28,497 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2019-11-28 17:24:28,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:28,520 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2019-11-28 17:24:28,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:24:28,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-28 17:24:28,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:28,522 INFO L225 Difference]: With dead ends: 83 [2019-11-28 17:24:28,522 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 17:24:28,523 INFO L630 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 [2019-11-28 17:24:28,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 17:24:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-28 17:24:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-28 17:24:28,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-11-28 17:24:28,529 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2019-11-28 17:24:28,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:28,530 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-11-28 17:24:28,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:24:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-11-28 17:24:28,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 17:24:28,531 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:28,531 INFO L410 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] [2019-11-28 17:24:28,532 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:28,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:28,532 INFO L82 PathProgramCache]: Analyzing trace with hash 533078269, now seen corresponding path program 1 times [2019-11-28 17:24:28,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:28,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430846540] [2019-11-28 17:24:28,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:28,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:28,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430846540] [2019-11-28 17:24:28,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:28,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:24:28,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969056871] [2019-11-28 17:24:28,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:24:28,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:28,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:24:28,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:24:28,664 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 5 states. [2019-11-28 17:24:28,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:28,768 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2019-11-28 17:24:28,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:24:28,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-28 17:24:28,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:28,771 INFO L225 Difference]: With dead ends: 68 [2019-11-28 17:24:28,773 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 17:24:28,774 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:24:28,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 17:24:28,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-28 17:24:28,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-28 17:24:28,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2019-11-28 17:24:28,784 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2019-11-28 17:24:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:28,784 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2019-11-28 17:24:28,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:24:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2019-11-28 17:24:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 17:24:28,786 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:28,786 INFO L410 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] [2019-11-28 17:24:28,787 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:28,787 INFO L82 PathProgramCache]: Analyzing trace with hash 545820985, now seen corresponding path program 1 times [2019-11-28 17:24:28,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:28,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821520958] [2019-11-28 17:24:28,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:28,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821520958] [2019-11-28 17:24:28,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:28,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:24:28,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55850871] [2019-11-28 17:24:28,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:24:28,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:28,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:24:28,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:24:28,904 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2019-11-28 17:24:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:28,953 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2019-11-28 17:24:28,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:24:28,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-28 17:24:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:28,955 INFO L225 Difference]: With dead ends: 89 [2019-11-28 17:24:28,956 INFO L226 Difference]: Without dead ends: 58 [2019-11-28 17:24:28,958 INFO L630 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 [2019-11-28 17:24:28,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-28 17:24:28,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-11-28 17:24:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-28 17:24:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2019-11-28 17:24:28,974 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2019-11-28 17:24:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:28,975 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2019-11-28 17:24:28,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:24:28,975 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2019-11-28 17:24:28,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 17:24:28,976 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:28,977 INFO L410 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] [2019-11-28 17:24:28,977 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:28,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:28,978 INFO L82 PathProgramCache]: Analyzing trace with hash 2110814541, now seen corresponding path program 1 times [2019-11-28 17:24:28,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:28,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179542758] [2019-11-28 17:24:28,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:29,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179542758] [2019-11-28 17:24:29,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:29,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:24:29,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24194538] [2019-11-28 17:24:29,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:24:29,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:29,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:24:29,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:24:29,077 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2019-11-28 17:24:29,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:29,225 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2019-11-28 17:24:29,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 17:24:29,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-28 17:24:29,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:29,228 INFO L225 Difference]: With dead ends: 266 [2019-11-28 17:24:29,229 INFO L226 Difference]: Without dead ends: 216 [2019-11-28 17:24:29,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:24:29,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-11-28 17:24:29,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 100. [2019-11-28 17:24:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-28 17:24:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 139 transitions. [2019-11-28 17:24:29,251 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 139 transitions. Word has length 29 [2019-11-28 17:24:29,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:29,252 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 139 transitions. [2019-11-28 17:24:29,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:24:29,252 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2019-11-28 17:24:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-28 17:24:29,254 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:29,254 INFO L410 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] [2019-11-28 17:24:29,254 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:29,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:29,255 INFO L82 PathProgramCache]: Analyzing trace with hash 331369175, now seen corresponding path program 1 times [2019-11-28 17:24:29,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:29,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028913779] [2019-11-28 17:24:29,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:29,342 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028913779] [2019-11-28 17:24:29,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:29,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:24:29,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789149758] [2019-11-28 17:24:29,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:24:29,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:29,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:24:29,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:24:29,344 INFO L87 Difference]: Start difference. First operand 100 states and 139 transitions. Second operand 5 states. [2019-11-28 17:24:29,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:29,484 INFO L93 Difference]: Finished difference Result 280 states and 394 transitions. [2019-11-28 17:24:29,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 17:24:29,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-28 17:24:29,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:29,488 INFO L225 Difference]: With dead ends: 280 [2019-11-28 17:24:29,488 INFO L226 Difference]: Without dead ends: 278 [2019-11-28 17:24:29,489 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:24:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-28 17:24:29,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2019-11-28 17:24:29,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-28 17:24:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2019-11-28 17:24:29,509 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 30 [2019-11-28 17:24:29,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:29,510 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2019-11-28 17:24:29,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:24:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2019-11-28 17:24:29,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-28 17:24:29,512 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:29,512 INFO L410 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] [2019-11-28 17:24:29,512 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:29,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:29,513 INFO L82 PathProgramCache]: Analyzing trace with hash 261712181, now seen corresponding path program 1 times [2019-11-28 17:24:29,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:29,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762708030] [2019-11-28 17:24:29,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:29,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762708030] [2019-11-28 17:24:29,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:29,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:24:29,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190804596] [2019-11-28 17:24:29,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:24:29,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:29,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:24:29,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:24:29,583 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand 5 states. [2019-11-28 17:24:29,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:29,655 INFO L93 Difference]: Finished difference Result 270 states and 372 transitions. [2019-11-28 17:24:29,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:24:29,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-28 17:24:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:29,658 INFO L225 Difference]: With dead ends: 270 [2019-11-28 17:24:29,658 INFO L226 Difference]: Without dead ends: 176 [2019-11-28 17:24:29,659 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:24:29,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-11-28 17:24:29,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2019-11-28 17:24:29,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-28 17:24:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2019-11-28 17:24:29,678 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 33 [2019-11-28 17:24:29,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:29,679 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2019-11-28 17:24:29,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:24:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2019-11-28 17:24:29,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-28 17:24:29,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:29,682 INFO L410 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] [2019-11-28 17:24:29,682 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:29,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:29,683 INFO L82 PathProgramCache]: Analyzing trace with hash -325093833, now seen corresponding path program 1 times [2019-11-28 17:24:29,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:29,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878093194] [2019-11-28 17:24:29,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:29,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878093194] [2019-11-28 17:24:29,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:29,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:24:29,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992278962] [2019-11-28 17:24:29,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:24:29,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:29,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:24:29,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:24:29,738 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2019-11-28 17:24:29,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:29,782 INFO L93 Difference]: Finished difference Result 252 states and 342 transitions. [2019-11-28 17:24:29,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:24:29,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-11-28 17:24:29,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:29,784 INFO L225 Difference]: With dead ends: 252 [2019-11-28 17:24:29,784 INFO L226 Difference]: Without dead ends: 152 [2019-11-28 17:24:29,785 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:24:29,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-28 17:24:29,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 110. [2019-11-28 17:24:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-28 17:24:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2019-11-28 17:24:29,801 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 33 [2019-11-28 17:24:29,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:29,802 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2019-11-28 17:24:29,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:24:29,802 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2019-11-28 17:24:29,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-28 17:24:29,803 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:29,803 INFO L410 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] [2019-11-28 17:24:29,804 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:29,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:29,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1604957511, now seen corresponding path program 1 times [2019-11-28 17:24:29,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:29,805 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130246758] [2019-11-28 17:24:29,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:29,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:29,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130246758] [2019-11-28 17:24:29,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:29,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:24:29,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208530339] [2019-11-28 17:24:29,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:24:29,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:29,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:24:29,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:24:29,850 INFO L87 Difference]: Start difference. First operand 110 states and 148 transitions. Second operand 3 states. [2019-11-28 17:24:29,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:29,880 INFO L93 Difference]: Finished difference Result 262 states and 352 transitions. [2019-11-28 17:24:29,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:24:29,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-28 17:24:29,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:29,882 INFO L225 Difference]: With dead ends: 262 [2019-11-28 17:24:29,882 INFO L226 Difference]: Without dead ends: 158 [2019-11-28 17:24:29,883 INFO L630 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 [2019-11-28 17:24:29,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-28 17:24:29,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-11-28 17:24:29,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-28 17:24:29,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 206 transitions. [2019-11-28 17:24:29,901 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 206 transitions. Word has length 33 [2019-11-28 17:24:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:29,901 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 206 transitions. [2019-11-28 17:24:29,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:24:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 206 transitions. [2019-11-28 17:24:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-28 17:24:29,903 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:29,903 INFO L410 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] [2019-11-28 17:24:29,903 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:29,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:29,904 INFO L82 PathProgramCache]: Analyzing trace with hash -447661573, now seen corresponding path program 1 times [2019-11-28 17:24:29,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:29,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302201087] [2019-11-28 17:24:29,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:24:29,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:24:29,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302201087] [2019-11-28 17:24:29,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:24:29,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 17:24:29,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449852390] [2019-11-28 17:24:29,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 17:24:29,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:24:29,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 17:24:29,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:24:29,997 INFO L87 Difference]: Start difference. First operand 158 states and 206 transitions. Second operand 6 states. [2019-11-28 17:24:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:24:30,243 INFO L93 Difference]: Finished difference Result 482 states and 630 transitions. [2019-11-28 17:24:30,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 17:24:30,244 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-28 17:24:30,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:24:30,249 INFO L225 Difference]: With dead ends: 482 [2019-11-28 17:24:30,249 INFO L226 Difference]: Without dead ends: 330 [2019-11-28 17:24:30,250 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-28 17:24:30,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-11-28 17:24:30,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 158. [2019-11-28 17:24:30,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-28 17:24:30,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 202 transitions. [2019-11-28 17:24:30,295 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 202 transitions. Word has length 34 [2019-11-28 17:24:30,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:24:30,296 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 202 transitions. [2019-11-28 17:24:30,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 17:24:30,296 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 202 transitions. [2019-11-28 17:24:30,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-28 17:24:30,297 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:24:30,297 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-28 17:24:30,297 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:24:30,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:24:30,298 INFO L82 PathProgramCache]: Analyzing trace with hash -2059222374, now seen corresponding path program 1 times [2019-11-28 17:24:30,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:24:30,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160177688] [2019-11-28 17:24:30,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:24:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:24:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:24:30,485 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 17:24:30,485 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 17:24:30,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:24:30 BoogieIcfgContainer [2019-11-28 17:24:30,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:24:30,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:24:30,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:24:30,616 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:24:30,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:24:27" (3/4) ... [2019-11-28 17:24:30,619 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 17:24:30,744 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:24:30,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:24:30,747 INFO L168 Benchmark]: Toolchain (without parser) took 4734.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.1 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:24:30,748 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:24:30,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 17:24:30,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:24:30,749 INFO L168 Benchmark]: Boogie Preprocessor took 44.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:24:30,753 INFO L168 Benchmark]: RCFGBuilder took 970.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:24:30,754 INFO L168 Benchmark]: TraceAbstraction took 2838.00 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -115.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:24:30,754 INFO L168 Benchmark]: Witness Printer took 128.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-28 17:24:30,759 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 667.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 970.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2838.00 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -115.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 128.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 764]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L581] int pumpRunning = 0; [L582] int systemActive = 1; [L833] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] int retValue_acc ; [L907] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] int retValue_acc ; [L827] retValue_acc = 1 [L828] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L511] int splverifierCounter ; [L512] int tmp ; [L513] int tmp___0 ; [L514] int tmp___1 ; [L515] int tmp___2 ; [L518] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] tmp = __VERIFIER_nondet_int() [L530] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp___2) [L755] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L589] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] COND TRUE \read(systemActive) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND TRUE ! pumpRunning [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; [L493] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND FALSE !(waterLevel < 2) [L500] retValue_acc = 0 [L501] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L739] tmp = isHighWaterSensorDry() [L741] COND FALSE !(\read(tmp)) [L744] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] tmp = isHighWaterLevel() [L625] COND TRUE \read(tmp) [L652] int tmp ; [L677] int retValue_acc ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] retValue_acc = isMethaneLevelCritical() [L683] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] tmp = isMethaneAlarm() [L658] COND FALSE !(\read(tmp)) [L646] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L770] int tmp ; [L771] int tmp___0 ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] tmp = isMethaneLevelCritical() [L777] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L520] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L522] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L528] tmp = __VERIFIER_nondet_int() [L530] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L443] COND FALSE !(\read(methaneLevelCritical)) [L446] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp___2) [L755] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L589] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L419] COND TRUE waterLevel > 0 [L420] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE \read(systemActive) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L770] int tmp ; [L771] int tmp___0 ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] tmp = isMethaneLevelCritical() [L777] COND TRUE \read(tmp) [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L779] tmp___0 = isPumpRunning() [L781] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.6s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 748 SDtfs, 1018 SDslu, 1178 SDs, 0 SdLazy, 167 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 580 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 13590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...