./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_variant.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/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 32bit --witnessprinter.graph.data.programhash 6b2483ed4878f440f5477fb40e4fe96958613e0f ............................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 19:30:48,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:30:48,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:30:48,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:30:48,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:30:48,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:30:48,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:30:48,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:30:48,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:30:48,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:30:48,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:30:48,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:30:48,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:30:48,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:30:48,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:30:48,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:30:48,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:30:48,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:30:48,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:30:48,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:30:48,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:30:48,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:30:48,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:30:48,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:30:48,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:30:48,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:30:48,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:30:48,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:30:48,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:30:48,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:30:48,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:30:48,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:30:48,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:30:48,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:30:48,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:30:48,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:30:48,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:30:48,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:30:48,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:30:48,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:30:48,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:30:48,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:30:48,761 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:30:48,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:30:48,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:30:48,761 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:30:48,762 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:30:48,762 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:30:48,762 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:30:48,762 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:30:48,762 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:30:48,762 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:30:48,762 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:30:48,762 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:30:48,763 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:30:48,763 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:30:48,763 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:30:48,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:30:48,763 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:30:48,764 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:30:48,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:30:48,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:30:48,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:30:48,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:30:48,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:30:48,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:30:48,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:30:48,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:30:48,765 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:30:48,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:30:48,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:30:48,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:30:48,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:30:48,766 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_b4397f22-1c20-4e7a-aad6-a5af7cab4325/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2483ed4878f440f5477fb40e4fe96958613e0f [2019-12-07 19:30:48,863 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:30:48,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:30:48,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:30:48,874 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:30:48,875 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:30:48,875 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/../../sv-benchmarks/c/loop-lit/jm2006_variant.i [2019-12-07 19:30:48,911 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/data/a10205a25/3cd292d0428149dd9ce2ffaef778b9c0/FLAG03e719186 [2019-12-07 19:30:49,260 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:30:49,261 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/sv-benchmarks/c/loop-lit/jm2006_variant.i [2019-12-07 19:30:49,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/data/a10205a25/3cd292d0428149dd9ce2ffaef778b9c0/FLAG03e719186 [2019-12-07 19:30:49,274 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/data/a10205a25/3cd292d0428149dd9ce2ffaef778b9c0 [2019-12-07 19:30:49,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:30:49,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:30:49,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:30:49,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:30:49,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:30:49,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203d0a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49, skipping insertion in model container [2019-12-07 19:30:49,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:30:49,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:30:49,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:30:49,442 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:30:49,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:30:49,466 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:30:49,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49 WrapperNode [2019-12-07 19:30:49,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:30:49,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:30:49,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:30:49,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:30:49,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:30:49,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:30:49,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:30:49,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:30:49,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... [2019-12-07 19:30:49,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:30:49,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:30:49,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:30:49,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:30:49,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/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 [2019-12-07 19:30:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:30:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:30:49,650 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:30:49,650 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 19:30:49,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:30:49 BoogieIcfgContainer [2019-12-07 19:30:49,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:30:49,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:30:49,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:30:49,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:30:49,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:30:49" (1/3) ... [2019-12-07 19:30:49,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b5b17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:30:49, skipping insertion in model container [2019-12-07 19:30:49,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:49" (2/3) ... [2019-12-07 19:30:49,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b5b17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:30:49, skipping insertion in model container [2019-12-07 19:30:49,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:30:49" (3/3) ... [2019-12-07 19:30:49,655 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-12-07 19:30:49,662 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:30:49,665 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:30:49,672 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:30:49,686 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:30:49,687 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:30:49,687 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:30:49,687 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:30:49,687 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:30:49,687 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:30:49,687 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:30:49,687 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:30:49,696 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 19:30:49,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 19:30:49,699 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:30:49,699 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:30:49,700 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:30:49,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:30:49,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1481353132, now seen corresponding path program 1 times [2019-12-07 19:30:49,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:30:49,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434611180] [2019-12-07 19:30:49,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:30:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:30:49,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:30:49,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434611180] [2019-12-07 19:30:50,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:30:50,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 19:30:50,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620341793] [2019-12-07 19:30:50,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:30:50,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:30:50,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:30:50,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:30:50,015 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 5 states. [2019-12-07 19:30:50,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:30:50,149 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-12-07 19:30:50,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 19:30:50,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-07 19:30:50,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:30:50,156 INFO L225 Difference]: With dead ends: 28 [2019-12-07 19:30:50,156 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 19:30:50,158 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 19:30:50,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 19:30:50,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-07 19:30:50,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 19:30:50,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-12-07 19:30:50,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-12-07 19:30:50,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:30:50,180 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-12-07 19:30:50,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:30:50,180 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-12-07 19:30:50,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 19:30:50,181 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:30:50,181 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:30:50,181 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:30:50,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:30:50,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1300168254, now seen corresponding path program 1 times [2019-12-07 19:30:50,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:30:50,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140166292] [2019-12-07 19:30:50,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:30:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:30:50,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:30:50,252 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140166292] [2019-12-07 19:30:50,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976079424] [2019-12-07 19:30:50,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:30:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:30:50,274 WARN L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 22 conjunts are in the unsatisfiable core [2019-12-07 19:30:50,277 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:30:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:30:50,320 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:30:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:30:50,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1431760112] [2019-12-07 19:30:50,374 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-12-07 19:30:50,374 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 19:30:50,378 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 19:30:50,384 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 19:30:50,384 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 19:30:50,497 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 19:30:50,655 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:30:50,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 19:30:50,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2019-12-07 19:30:50,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230281311] [2019-12-07 19:30:50,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-12-07 19:30:50,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:30:50,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 19:30:50,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2019-12-07 19:30:50,657 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 13 states. [2019-12-07 19:30:50,920 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2019-12-07 19:30:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:30:50,943 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-12-07 19:30:50,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 19:30:50,944 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 8 [2019-12-07 19:30:50,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:30:50,945 INFO L225 Difference]: With dead ends: 19 [2019-12-07 19:30:50,945 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 19:30:50,948 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2019-12-07 19:30:50,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 19:30:50,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 19:30:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 19:30:50,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-12-07 19:30:50,953 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2019-12-07 19:30:50,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:30:50,953 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-12-07 19:30:50,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-12-07 19:30:50,954 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-12-07 19:30:50,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 19:30:50,955 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:30:50,955 INFO L410 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:30:51,156 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:30:51,156 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:30:51,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:30:51,157 INFO L82 PathProgramCache]: Analyzing trace with hash 404980436, now seen corresponding path program 2 times [2019-12-07 19:30:51,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:30:51,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330895220] [2019-12-07 19:30:51,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:30:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:30:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 19:30:51,248 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330895220] [2019-12-07 19:30:51,248 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045220499] [2019-12-07 19:30:51,248 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:30:51,269 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-12-07 19:30:51,270 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 19:30:51,271 WARN L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 40 conjunts are in the unsatisfiable core [2019-12-07 19:30:51,272 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:30:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:30:51,357 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:30:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:30:51,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1442714086] [2019-12-07 19:30:51,454 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-12-07 19:30:51,454 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 19:30:51,455 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 19:30:51,455 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 19:30:51,455 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 19:30:51,495 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 19:30:51,657 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:30:51,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 19:30:51,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2019-12-07 19:30:51,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826128807] [2019-12-07 19:30:51,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-12-07 19:30:51,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:30:51,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-12-07 19:30:51,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2019-12-07 19:30:51,659 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 20 states. [2019-12-07 19:30:51,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:30:51,769 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-12-07 19:30:51,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 19:30:51,769 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 11 [2019-12-07 19:30:51,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:30:51,770 INFO L225 Difference]: With dead ends: 15 [2019-12-07 19:30:51,770 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 19:30:51,770 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2019-12-07 19:30:51,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 19:30:51,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 19:30:51,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 19:30:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 19:30:51,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 19:30:51,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:30:51,771 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 19:30:51,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-12-07 19:30:51,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 19:30:51,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 19:30:51,971 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:30:51,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 19:30:52,032 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 19:30:52,032 INFO L249 CegarLoopResult]: At program point L27(lines 10 28) the Hoare annotation is: true [2019-12-07 19:30:52,033 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~i~0)) (.cse0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-12-07 19:30:52,033 INFO L246 CegarLoopResult]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-12-07 19:30:52,033 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-12-07 19:30:52,033 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-12-07 19:30:52,033 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 19:30:52,033 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 19:30:52,033 INFO L249 CegarLoopResult]: At program point L24(lines 24 26) the Hoare annotation is: true [2019-12-07 19:30:52,033 INFO L246 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2019-12-07 19:30:52,034 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-12-07 19:30:52,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:30:52 BoogieIcfgContainer [2019-12-07 19:30:52,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:30:52,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:30:52,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:30:52,047 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:30:52,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:30:49" (3/4) ... [2019-12-07 19:30:52,050 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 19:30:52,056 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 19:30:52,056 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 19:30:52,086 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b4397f22-1c20-4e7a-aad6-a5af7cab4325/bin/utaipan/witness.graphml [2019-12-07 19:30:52,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:30:52,087 INFO L168 Benchmark]: Toolchain (without parser) took 2809.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 942.6 MB in the beginning and 986.7 MB in the end (delta: -44.0 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:52,088 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:30:52,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -145.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:52,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:30:52,088 INFO L168 Benchmark]: Boogie Preprocessor took 13.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:30:52,089 INFO L168 Benchmark]: RCFGBuilder took 148.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:52,089 INFO L168 Benchmark]: TraceAbstraction took 2394.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 988.4 MB in the end (delta: 82.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:52,089 INFO L168 Benchmark]: Witness Printer took 39.72 ms. Allocated memory is still 1.1 GB. Free memory was 988.4 MB in the beginning and 986.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:52,091 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -145.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 148.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2394.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 988.4 MB in the end (delta: 82.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.72 ms. Allocated memory is still 1.1 GB. Free memory was 988.4 MB in the beginning and 986.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x + j <= z + y + i && z + y + i <= x + j - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 61 SDslu, 42 SDs, 0 SdLazy, 169 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 16 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 158 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 4534 SizeOfPredicates, 18 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 3/33 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...