./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer --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 7879ca98f25531324d15e1db6b1d755ab21e7b97 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 09:02:27,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:27,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:27,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:27,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:27,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:27,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:27,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:27,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:27,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:27,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:27,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:27,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:27,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:27,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:27,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:27,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:27,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:27,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:27,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:27,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:27,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:27,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:27,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:27,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:27,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:27,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:27,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:27,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:27,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:27,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:27,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:27,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:27,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:27,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:27,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:27,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:27,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:27,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:27,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:27,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:27,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:27,776 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:27,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:27,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:27,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:27,778 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:27,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:27,778 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:27,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:27,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:27,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:27,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:27,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:27,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:27,779 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:27,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:27,780 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:27,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:27,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:27,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:27,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:27,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:27,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:27,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:27,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:27,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:27,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:27,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:27,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:27,782 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer 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 -> 7879ca98f25531324d15e1db6b1d755ab21e7b97 [2019-10-22 09:02:27,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:27,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:27,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:27,829 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:27,829 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:27,830 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c [2019-10-22 09:02:27,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/data/7f0ed21d3/34022f2ebfb04da69992be8a902600f6/FLAGaf5fab688 [2019-10-22 09:02:28,307 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:28,308 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c [2019-10-22 09:02:28,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/data/7f0ed21d3/34022f2ebfb04da69992be8a902600f6/FLAGaf5fab688 [2019-10-22 09:02:28,329 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/data/7f0ed21d3/34022f2ebfb04da69992be8a902600f6 [2019-10-22 09:02:28,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:28,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:28,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:28,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:28,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:28,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a3561c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28, skipping insertion in model container [2019-10-22 09:02:28,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,346 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:28,383 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:28,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:28,746 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:28,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:28,838 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:28,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28 WrapperNode [2019-10-22 09:02:28,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:28,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:28,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:28,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:28,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:28,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:28,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:28,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:28,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... [2019-10-22 09:02:28,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:28,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:28,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:28,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:28,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/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 [2019-10-22 09:02:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:02:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:29,701 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:29,701 INFO L284 CfgBuilder]: Removed 164 assume(true) statements. [2019-10-22 09:02:29,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:29 BoogieIcfgContainer [2019-10-22 09:02:29,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:29,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:29,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:29,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:29,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:28" (1/3) ... [2019-10-22 09:02:29,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a6cf84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:29, skipping insertion in model container [2019-10-22 09:02:29,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:28" (2/3) ... [2019-10-22 09:02:29,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a6cf84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:29, skipping insertion in model container [2019-10-22 09:02:29,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:29" (3/3) ... [2019-10-22 09:02:29,709 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2019-10-22 09:02:29,716 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:29,725 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:02:29,734 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:02:29,754 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:29,754 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:29,754 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:29,754 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:29,754 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:29,754 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:29,755 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:29,755 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:29,768 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-10-22 09:02:29,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:02:29,774 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:29,774 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:29,776 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:29,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:29,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1953692801, now seen corresponding path program 1 times [2019-10-22 09:02:29,786 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:29,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511627594] [2019-10-22 09:02:29,787 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:29,787 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:29,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:29,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:29,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511627594] [2019-10-22 09:02:29,953 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:29,954 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:29,954 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302439529] [2019-10-22 09:02:29,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:02:29,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:29,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:02:29,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:02:29,971 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2019-10-22 09:02:29,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:29,996 INFO L93 Difference]: Finished difference Result 216 states and 323 transitions. [2019-10-22 09:02:29,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:02:29,997 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 09:02:29,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:30,006 INFO L225 Difference]: With dead ends: 216 [2019-10-22 09:02:30,006 INFO L226 Difference]: Without dead ends: 107 [2019-10-22 09:02:30,009 INFO L600 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 [2019-10-22 09:02:30,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-10-22 09:02:30,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-10-22 09:02:30,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-10-22 09:02:30,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2019-10-22 09:02:30,042 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 18 [2019-10-22 09:02:30,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:30,043 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2019-10-22 09:02:30,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:02:30,043 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2019-10-22 09:02:30,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:02:30,044 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:30,044 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:30,045 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:30,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:30,045 INFO L82 PathProgramCache]: Analyzing trace with hash 573769835, now seen corresponding path program 1 times [2019-10-22 09:02:30,045 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:30,045 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905603535] [2019-10-22 09:02:30,045 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,046 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:30,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:30,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905603535] [2019-10-22 09:02:30,122 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:30,122 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:30,122 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793051233] [2019-10-22 09:02:30,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:30,123 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:30,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:30,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:30,124 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand 3 states. [2019-10-22 09:02:30,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:30,140 INFO L93 Difference]: Finished difference Result 107 states and 153 transitions. [2019-10-22 09:02:30,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:30,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 09:02:30,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:30,142 INFO L225 Difference]: With dead ends: 107 [2019-10-22 09:02:30,142 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 09:02:30,143 INFO L600 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 [2019-10-22 09:02:30,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 09:02:30,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-22 09:02:30,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 09:02:30,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2019-10-22 09:02:30,147 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 19 [2019-10-22 09:02:30,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:30,147 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2019-10-22 09:02:30,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2019-10-22 09:02:30,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 09:02:30,148 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:30,148 INFO L380 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] [2019-10-22 09:02:30,148 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:30,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:30,149 INFO L82 PathProgramCache]: Analyzing trace with hash 197323452, now seen corresponding path program 1 times [2019-10-22 09:02:30,149 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:30,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764010818] [2019-10-22 09:02:30,149 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,149 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:30,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:30,243 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764010818] [2019-10-22 09:02:30,243 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:30,243 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:30,243 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817899186] [2019-10-22 09:02:30,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:30,244 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:30,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:30,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:30,244 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2019-10-22 09:02:30,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:30,266 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2019-10-22 09:02:30,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:30,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 09:02:30,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:30,268 INFO L225 Difference]: With dead ends: 84 [2019-10-22 09:02:30,268 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 09:02:30,268 INFO L600 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 [2019-10-22 09:02:30,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 09:02:30,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-22 09:02:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 09:02:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2019-10-22 09:02:30,274 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 24 [2019-10-22 09:02:30,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:30,274 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2019-10-22 09:02:30,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:30,274 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2019-10-22 09:02:30,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 09:02:30,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:30,275 INFO L380 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] [2019-10-22 09:02:30,275 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:30,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:30,276 INFO L82 PathProgramCache]: Analyzing trace with hash -303470070, now seen corresponding path program 1 times [2019-10-22 09:02:30,276 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:30,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836668469] [2019-10-22 09:02:30,276 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:30,372 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836668469] [2019-10-22 09:02:30,373 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:30,373 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:30,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560851871] [2019-10-22 09:02:30,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:30,373 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:30,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:30,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:30,374 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 5 states. [2019-10-22 09:02:30,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:30,592 INFO L93 Difference]: Finished difference Result 242 states and 360 transitions. [2019-10-22 09:02:30,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:30,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 09:02:30,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:30,597 INFO L225 Difference]: With dead ends: 242 [2019-10-22 09:02:30,597 INFO L226 Difference]: Without dead ends: 203 [2019-10-22 09:02:30,598 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:30,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-10-22 09:02:30,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 80. [2019-10-22 09:02:30,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-10-22 09:02:30,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2019-10-22 09:02:30,615 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 26 [2019-10-22 09:02:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:30,615 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2019-10-22 09:02:30,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:30,615 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2019-10-22 09:02:30,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 09:02:30,616 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:30,616 INFO L380 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] [2019-10-22 09:02:30,616 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:30,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:30,617 INFO L82 PathProgramCache]: Analyzing trace with hash -912506616, now seen corresponding path program 1 times [2019-10-22 09:02:30,617 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:30,620 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385342564] [2019-10-22 09:02:30,620 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,620 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:31,332 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:31,332 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:02:31,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:31 BoogieIcfgContainer [2019-10-22 09:02:31,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:31,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:31,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:31,440 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:31,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:29" (3/4) ... [2019-10-22 09:02:31,442 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:02:31,534 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cd021b3e-aff2-44bf-b386-55dddd5d3d62/bin/uautomizer/witness.graphml [2019-10-22 09:02:31,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:31,536 INFO L168 Benchmark]: Toolchain (without parser) took 3203.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 939.1 MB in the beginning and 808.7 MB in the end (delta: 130.5 MB). Peak memory consumption was 267.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:31,536 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:31,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:31,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.09 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:31,537 INFO L168 Benchmark]: Boogie Preprocessor took 51.24 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. [2019-10-22 09:02:31,538 INFO L168 Benchmark]: RCFGBuilder took 743.33 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: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:31,538 INFO L168 Benchmark]: TraceAbstraction took 1735.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 822.7 MB in the end (delta: 224.5 MB). Peak memory consumption was 224.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:31,538 INFO L168 Benchmark]: Witness Printer took 95.10 ms. Allocated memory is still 1.2 GB. Free memory was 822.7 MB in the beginning and 808.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:31,542 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 506.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.09 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.24 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 743.33 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: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1735.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 822.7 MB in the end (delta: 224.5 MB). Peak memory consumption was 224.5 MB. Max. memory is 11.5 GB. * Witness Printer took 95.10 ms. Allocated memory is still 1.2 GB. Free memory was 822.7 MB in the beginning and 808.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L145] int cleanupTimeShifts = 4; [L286] int pumpRunning = 0; [L287] int systemActive = 1; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L224] int retValue_acc ; [L225] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L273] int retValue_acc ; [L276] retValue_acc = 1 [L277] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L231] tmp = valid_product() [L233] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L474] int splverifierCounter ; [L475] int tmp ; [L476] int tmp___0 ; [L477] int tmp___1 ; [L478] int tmp___2 ; [L481] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L483] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L485] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L491] tmp = __VERIFIER_nondet_int() [L493] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L501] tmp___0 = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L511] tmp___2 = __VERIFIER_nondet_int() [L513] COND TRUE \read(tmp___2) [L468] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L294] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L301] COND TRUE \read(systemActive) [L349] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L352] COND FALSE !(\read(pumpRunning)) [L323] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L326] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L401] int retValue_acc ; [L404] retValue_acc = pumpRunning [L405] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 412 SDslu, 253 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 123 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...