./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-staging-comedi-drivers-ni_6527-ko--107_1a--adbbc36.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-staging-comedi-drivers-ni_6527-ko--107_1a--adbbc36.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2e6f430d1bede75828ec9336e2d71de262eb203d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:40:26,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:40:26,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:40:26,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:40:26,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:40:26,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:40:26,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:40:26,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:40:26,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:40:26,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:40:26,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:40:26,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:40:26,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:40:26,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:40:26,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:40:26,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:40:26,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:40:26,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:40:26,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:40:26,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:40:26,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:40:26,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:40:26,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:40:26,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:40:26,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:40:26,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:40:26,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:40:26,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:40:26,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:40:26,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:40:26,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:40:26,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:40:26,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:40:26,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:40:26,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:40:26,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:40:26,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:40:26,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:40:26,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:40:26,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:40:26,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:40:26,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2019-11-26 02:40:26,768 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:40:26,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:40:26,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:40:26,779 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:40:26,779 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:40:26,779 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:40:26,780 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:40:26,780 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:40:26,780 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:40:26,780 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:40:26,780 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:40:26,781 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:40:26,781 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:40:26,781 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:40:26,781 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:40:26,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:40:26,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:40:26,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:40:26,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:40:26,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:40:26,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:40:26,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:40:26,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:40:26,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:40:26,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:40:26,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:40:26,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:40:26,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:40:26,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:40:26,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:40:26,787 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:40:26,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:40:26,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:40:26,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:40:26,788 INFO L138 SettingsManager]: * To the following directory=dump/ [2019-11-26 02:40:26,788 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6f430d1bede75828ec9336e2d71de262eb203d [2019-11-26 02:40:26,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:40:26,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:40:26,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:40:26,970 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:40:26,971 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:40:26,971 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-staging-comedi-drivers-ni_6527-ko--107_1a--adbbc36.i [2019-11-26 02:40:27,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/data/8fc7f4ae5/705a04ede49b4c9d9751abfa431e5b31/FLAG57c152532 [2019-11-26 02:40:27,554 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:40:27,555 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/sv-benchmarks/c/ldv-commit-tester/m0_drivers-staging-comedi-drivers-ni_6527-ko--107_1a--adbbc36.i [2019-11-26 02:40:27,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/data/8fc7f4ae5/705a04ede49b4c9d9751abfa431e5b31/FLAG57c152532 [2019-11-26 02:40:27,859 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/data/8fc7f4ae5/705a04ede49b4c9d9751abfa431e5b31 [2019-11-26 02:40:27,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:40:27,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:40:27,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:40:27,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:40:27,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:40:27,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:40:27" (1/1) ... [2019-11-26 02:40:27,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba9fd80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:27, skipping insertion in model container [2019-11-26 02:40:27,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:40:27" (1/1) ... [2019-11-26 02:40:27,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:40:27,951 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:40:28,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:40:28,663 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:40:28,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:40:28,921 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:40:28,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28 WrapperNode [2019-11-26 02:40:28,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:40:28,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:40:28,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:40:28,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:40:28,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... [2019-11-26 02:40:28,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... [2019-11-26 02:40:29,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:40:29,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:40:29,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:40:29,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:40:29,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... [2019-11-26 02:40:29,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... [2019-11-26 02:40:29,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... [2019-11-26 02:40:29,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... [2019-11-26 02:40:29,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... [2019-11-26 02:40:29,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... [2019-11-26 02:40:29,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... [2019-11-26 02:40:29,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:40:29,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:40:29,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:40:29,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:40:29,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/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 [2019-11-26 02:40:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-26 02:40:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:40:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:40:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-26 02:40:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:40:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-26 02:40:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:40:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:40:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:40:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:40:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:40:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-11-26 02:41:08,106 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:41:08,106 INFO L284 CfgBuilder]: Removed 159 assume(true) statements. [2019-11-26 02:41:08,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:41:08 BoogieIcfgContainer [2019-11-26 02:41:08,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:41:08,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:41:08,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:41:08,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:41:08,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:40:27" (1/3) ... [2019-11-26 02:41:08,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb57670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:41:08, skipping insertion in model container [2019-11-26 02:41:08,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:28" (2/3) ... [2019-11-26 02:41:08,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb57670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:41:08, skipping insertion in model container [2019-11-26 02:41:08,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:41:08" (3/3) ... [2019-11-26 02:41:08,113 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-staging-comedi-drivers-ni_6527-ko--107_1a--adbbc36.i [2019-11-26 02:41:08,121 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:41:08,128 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:41:08,138 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:41:08,159 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:41:08,159 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:41:08,159 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:41:08,159 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:41:08,160 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:41:08,160 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:41:08,160 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:41:08,160 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:41:08,174 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-11-26 02:41:08,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:41:08,179 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:41:08,180 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:41:08,181 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:41:08,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:41:08,186 INFO L82 PathProgramCache]: Analyzing trace with hash 726177295, now seen corresponding path program 1 times [2019-11-26 02:41:08,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:41:08,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875169146] [2019-11-26 02:41:08,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:41:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:41:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:41:08,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875169146] [2019-11-26 02:41:08,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:41:08,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:41:08,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586487010] [2019-11-26 02:41:08,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:41:08,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:41:08,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:41:08,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:41:08,505 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2019-11-26 02:41:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:41:08,529 INFO L93 Difference]: Finished difference Result 87 states and 130 transitions. [2019-11-26 02:41:08,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:41:08,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-26 02:41:08,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:41:08,539 INFO L225 Difference]: With dead ends: 87 [2019-11-26 02:41:08,540 INFO L226 Difference]: Without dead ends: 34 [2019-11-26 02:41:08,542 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 [2019-11-26 02:41:08,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-26 02:41:08,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-26 02:41:08,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-26 02:41:08,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2019-11-26 02:41:08,574 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 5 [2019-11-26 02:41:08,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:41:08,574 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2019-11-26 02:41:08,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:41:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2019-11-26 02:41:08,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:41:08,575 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:41:08,575 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:41:08,576 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:41:08,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:41:08,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2071695824, now seen corresponding path program 1 times [2019-11-26 02:41:08,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:41:08,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645748590] [2019-11-26 02:41:08,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:41:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:41:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:41:08,676 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645748590] [2019-11-26 02:41:08,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:41:08,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:41:08,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626239237] [2019-11-26 02:41:08,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:41:08,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:41:08,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:41:08,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:41:08,679 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2019-11-26 02:41:08,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:41:08,686 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2019-11-26 02:41:08,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:41:08,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-26 02:41:08,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:41:08,687 INFO L225 Difference]: With dead ends: 34 [2019-11-26 02:41:08,688 INFO L226 Difference]: Without dead ends: 32 [2019-11-26 02:41:08,688 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 [2019-11-26 02:41:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-26 02:41:08,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-26 02:41:08,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-26 02:41:08,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2019-11-26 02:41:08,693 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 7 [2019-11-26 02:41:08,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:41:08,693 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2019-11-26 02:41:08,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:41:08,694 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2019-11-26 02:41:08,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:41:08,694 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:41:08,694 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:41:08,694 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:41:08,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:41:08,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1965146730, now seen corresponding path program 1 times [2019-11-26 02:41:08,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:41:08,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716848398] [2019-11-26 02:41:08,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:41:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:41:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:41:08,790 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716848398] [2019-11-26 02:41:08,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:41:08,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:41:08,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959825333] [2019-11-26 02:41:08,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:41:08,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:41:08,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:41:08,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:41:08,792 INFO L87 Difference]: Start difference. First operand 32 states and 45 transitions. Second operand 3 states. [2019-11-26 02:41:08,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:41:08,799 INFO L93 Difference]: Finished difference Result 32 states and 45 transitions. [2019-11-26 02:41:08,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:41:08,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-26 02:41:08,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:41:08,802 INFO L225 Difference]: With dead ends: 32 [2019-11-26 02:41:08,802 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:41:08,803 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 [2019-11-26 02:41:08,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:41:08,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:41:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:41:08,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:41:08,804 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-11-26 02:41:08,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:41:08,804 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:41:08,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:41:08,804 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:41:08,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:41:08,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:41:08,874 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 2319) no Hoare annotation was computed. [2019-11-26 02:41:08,875 INFO L440 ceAbstractionStarter]: At program point L2316(lines 1 2425) the Hoare annotation is: (and (<= 1 ULTIMATE.start_ldv_check_final_state_~tmp~16) (<= ULTIMATE.start_ldv_check_final_state_~tmp~16 1)) [2019-11-26 02:41:08,875 INFO L440 ceAbstractionStarter]: At program point L2316-2(lines 2328 2351) the Hoare annotation is: (and (<= 1 ULTIMATE.start_ldv_check_final_state_~tmp~16) (<= ULTIMATE.start_ldv_check_final_state_~tmp~16 1)) [2019-11-26 02:41:08,875 INFO L440 ceAbstractionStarter]: At program point L2316-1(lines 1 2425) the Hoare annotation is: (and (<= ULTIMATE.start_ldv_check_final_state_~tmp___0~6 1) (<= 1 ULTIMATE.start_ldv_check_final_state_~tmp___0~6) (<= 1 ULTIMATE.start_ldv_check_final_state_~tmp~16) (<= ULTIMATE.start_ldv_check_final_state_~tmp~16 1)) [2019-11-26 02:41:08,875 INFO L447 ceAbstractionStarter]: At program point L2184(lines 2151 2192) the Hoare annotation is: true [2019-11-26 02:41:08,875 INFO L447 ceAbstractionStarter]: At program point L2285(line 2285) the Hoare annotation is: true [2019-11-26 02:41:08,876 INFO L444 ceAbstractionStarter]: For program point L2319-1(line 2319) no Hoare annotation was computed. [2019-11-26 02:41:08,876 INFO L444 ceAbstractionStarter]: For program point L2319(line 2319) no Hoare annotation was computed. [2019-11-26 02:41:08,876 INFO L444 ceAbstractionStarter]: For program point L2319-2(line 2319) no Hoare annotation was computed. [2019-11-26 02:41:08,876 INFO L447 ceAbstractionStarter]: At program point L1692(lines 1662 1694) the Hoare annotation is: true [2019-11-26 02:41:08,876 INFO L444 ceAbstractionStarter]: For program point L2155(lines 2155 2158) no Hoare annotation was computed. [2019-11-26 02:41:08,876 INFO L447 ceAbstractionStarter]: At program point L1760(lines 1742 1766) the Hoare annotation is: true [2019-11-26 02:41:08,876 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 2319) no Hoare annotation was computed. [2019-11-26 02:41:08,876 INFO L447 ceAbstractionStarter]: At program point L2191(lines 2146 2193) the Hoare annotation is: true [2019-11-26 02:41:08,876 INFO L447 ceAbstractionStarter]: At program point L2125(lines 2054 2127) the Hoare annotation is: true [2019-11-26 02:41:08,877 INFO L444 ceAbstractionStarter]: For program point L2159(lines 2159 2165) no Hoare annotation was computed. [2019-11-26 02:41:08,877 INFO L444 ceAbstractionStarter]: For program point L2159-2(lines 2159 2165) no Hoare annotation was computed. [2019-11-26 02:41:08,877 INFO L444 ceAbstractionStarter]: For program point L1499(lines 1499 1502) no Hoare annotation was computed. [2019-11-26 02:41:08,877 INFO L444 ceAbstractionStarter]: For program point L1499-1(lines 1499 1502) no Hoare annotation was computed. [2019-11-26 02:41:08,877 INFO L444 ceAbstractionStarter]: For program point L2160-2(lines 2160 2163) no Hoare annotation was computed. [2019-11-26 02:41:08,877 INFO L440 ceAbstractionStarter]: At program point L1500(lines 1488 1503) the Hoare annotation is: false [2019-11-26 02:41:08,877 INFO L440 ceAbstractionStarter]: At program point L1500-1(lines 1488 1503) the Hoare annotation is: false [2019-11-26 02:41:08,877 INFO L447 ceAbstractionStarter]: At program point L1765(lines 1737 1767) the Hoare annotation is: true [2019-11-26 02:41:08,877 INFO L444 ceAbstractionStarter]: For program point L2063(lines 2063 2066) no Hoare annotation was computed. [2019-11-26 02:41:08,878 INFO L440 ceAbstractionStarter]: At program point L1469(lines 1469 1472) the Hoare annotation is: false [2019-11-26 02:41:08,878 INFO L440 ceAbstractionStarter]: At program point L1469-1(lines 1469 1472) the Hoare annotation is: false [2019-11-26 02:41:08,878 INFO L440 ceAbstractionStarter]: At program point L1405(lines 1405 1408) the Hoare annotation is: false [2019-11-26 02:41:08,878 INFO L444 ceAbstractionStarter]: For program point L1670(lines 1670 1690) no Hoare annotation was computed. [2019-11-26 02:41:08,878 INFO L447 ceAbstractionStarter]: At program point L1670-2(lines 1670 1690) the Hoare annotation is: true [2019-11-26 02:41:08,878 INFO L440 ceAbstractionStarter]: At program point L1406(lines 1399 1410) the Hoare annotation is: false [2019-11-26 02:41:08,878 INFO L444 ceAbstractionStarter]: For program point L1671(lines 1671 1675) no Hoare annotation was computed. [2019-11-26 02:41:08,878 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:41:08,878 INFO L447 ceAbstractionStarter]: At program point L2068(lines 2068 2071) the Hoare annotation is: true [2019-11-26 02:41:08,879 INFO L447 ceAbstractionStarter]: At program point L2302(lines 2272 2314) the Hoare annotation is: true [2019-11-26 02:41:08,879 INFO L444 ceAbstractionStarter]: For program point L2335(lines 2335 2338) no Hoare annotation was computed. [2019-11-26 02:41:08,880 INFO L444 ceAbstractionStarter]: For program point L2170(lines 2170 2175) no Hoare annotation was computed. [2019-11-26 02:41:08,880 INFO L447 ceAbstractionStarter]: At program point L2237(lines 1 2425) the Hoare annotation is: true [2019-11-26 02:41:08,880 INFO L440 ceAbstractionStarter]: At program point L1676(lines 1676 1688) the Hoare annotation is: false [2019-11-26 02:41:08,880 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:41:08,880 INFO L447 ceAbstractionStarter]: At program point L2073(lines 2073 2077) the Hoare annotation is: true [2019-11-26 02:41:08,880 INFO L447 ceAbstractionStarter]: At program point L2305(lines 2305 2308) the Hoare annotation is: true [2019-11-26 02:41:08,881 INFO L440 ceAbstractionStarter]: At program point L1679(lines 1679 1682) the Hoare annotation is: false [2019-11-26 02:41:08,881 INFO L444 ceAbstractionStarter]: For program point L2340(lines 2340 2343) no Hoare annotation was computed. [2019-11-26 02:41:08,881 INFO L444 ceAbstractionStarter]: For program point L1746(lines 1746 1749) no Hoare annotation was computed. [2019-11-26 02:41:08,881 INFO L447 ceAbstractionStarter]: At program point L2177(lines 2151 2192) the Hoare annotation is: true [2019-11-26 02:41:08,881 INFO L444 ceAbstractionStarter]: For program point L2277(lines 2277 2280) no Hoare annotation was computed. [2019-11-26 02:41:08,881 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2319) no Hoare annotation was computed. [2019-11-26 02:41:08,882 INFO L444 ceAbstractionStarter]: For program point L2345(lines 2345 2348) no Hoare annotation was computed. [2019-11-26 02:41:08,882 INFO L444 ceAbstractionStarter]: For program point L1488(lines 1488 1504) no Hoare annotation was computed. [2019-11-26 02:41:08,882 INFO L440 ceAbstractionStarter]: At program point L1488-2(lines 1456 1508) the Hoare annotation is: false [2019-11-26 02:41:08,882 INFO L444 ceAbstractionStarter]: For program point L1488-3(lines 1488 1504) no Hoare annotation was computed. [2019-11-26 02:41:08,882 INFO L440 ceAbstractionStarter]: At program point L1488-5(lines 1456 1508) the Hoare annotation is: false [2019-11-26 02:41:08,883 INFO L447 ceAbstractionStarter]: At program point L2182(lines 2151 2192) the Hoare annotation is: true [2019-11-26 02:41:08,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:41:08 BoogieIcfgContainer [2019-11-26 02:41:08,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:41:08,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:41:08,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:41:08,895 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:41:08,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:41:08" (3/4) ... [2019-11-26 02:41:08,898 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:41:08,939 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 190 nodes and edges [2019-11-26 02:41:08,941 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2019-11-26 02:41:08,944 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-11-26 02:41:08,947 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:41:08,949 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:41:09,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a39e01d3-3c39-4193-a71e-a6281e7fe10e/bin/utaipan/witness.graphml [2019-11-26 02:41:09,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:41:09,157 INFO L168 Benchmark]: Toolchain (without parser) took 41293.36 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.7 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -109.3 MB). Peak memory consumption was 187.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:09,158 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-26 02:41:09,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1058.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:09,159 INFO L168 Benchmark]: Boogie Procedure Inliner took 146.59 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:09,159 INFO L168 Benchmark]: Boogie Preprocessor took 103.19 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:09,160 INFO L168 Benchmark]: RCFGBuilder took 38934.10 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 155.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -99.2 MB). Peak memory consumption was 349.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:09,160 INFO L168 Benchmark]: TraceAbstraction took 786.05 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 75.1 MB). Peak memory consumption was 75.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:09,161 INFO L168 Benchmark]: Witness Printer took 260.66 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:09,163 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1058.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 146.59 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 103.19 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 38934.10 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 155.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -99.2 MB). Peak memory consumption was 349.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 786.05 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 75.1 MB). Peak memory consumption was 75.1 MB. Max. memory is 11.5 GB. * Witness Printer took 260.66 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 1456]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2073]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2285]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((tmp___0 <= 1 && 1 <= tmp___0) && 1 <= tmp) && tmp <= 1 - InvariantResult [Line: 1676]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 <= tmp && tmp <= 1 - InvariantResult [Line: 1456]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2305]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2151]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2328]: Loop Invariant Derived loop invariant: 1 <= tmp && tmp <= 1 - InvariantResult [Line: 1742]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2272]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2068]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1399]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1670]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2054]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1405]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1469]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2151]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2151]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1469]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1488]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1488]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1679]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1737]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 3 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 135 SDtfs, 14 SDslu, 118 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 29 PreInvPairs, 47 NumberOfFragments, 53 HoareAnnotationTreeSize, 29 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 29 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 correct! Received shutdown request...