./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c --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_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/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 f5d9ac754231ae2d56ad4837ed9503039449ffeb ............................................................................................................................................................................................................................................................................................. 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 13:36:52,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:36:52,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:36:52,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:36:52,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:36:52,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:36:52,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:36:52,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:36:52,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:36:52,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:36:52,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:36:52,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:36:52,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:36:52,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:36:52,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:36:52,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:36:52,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:36:52,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:36:52,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:36:52,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:36:52,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:36:52,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:36:52,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:36:52,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:36:52,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:36:52,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:36:52,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:36:52,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:36:52,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:36:52,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:36:52,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:36:52,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:36:52,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:36:52,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:36:52,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:36:52,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:36:52,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:36:52,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:36:52,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:36:52,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:36:52,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:36:52,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:36:52,864 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:36:52,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:36:52,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:36:52,865 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:36:52,865 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:36:52,865 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:36:52,866 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:36:52,866 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:36:52,866 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:36:52,866 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:36:52,866 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:36:52,866 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:36:52,866 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:36:52,866 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:36:52,867 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:36:52,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:36:52,867 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:36:52,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:36:52,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:36:52,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:36:52,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:36:52,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:36:52,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:36:52,868 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:36:52,868 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:36:52,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:36:52,868 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:36:52,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:36:52,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:36:52,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:36:52,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:36:52,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:36:52,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:36:52,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:36:52,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:36:52,869 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:36:52,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:36:52,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:36:52,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:36:52,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:36:52,870 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_67fd09c2-24c3-4464-bc14-cc995357bf2e/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 -> f5d9ac754231ae2d56ad4837ed9503039449ffeb [2019-12-07 13:36:52,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:36:52,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:36:52,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:36:52,983 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:36:52,983 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:36:52,983 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2019-12-07 13:36:53,026 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/data/00746a511/7ac76fe5b59d427287977411f33d3f7b/FLAGa9287e9e5 [2019-12-07 13:36:53,429 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:36:53,429 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2019-12-07 13:36:53,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/data/00746a511/7ac76fe5b59d427287977411f33d3f7b/FLAGa9287e9e5 [2019-12-07 13:36:53,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/data/00746a511/7ac76fe5b59d427287977411f33d3f7b [2019-12-07 13:36:53,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:36:53,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:36:53,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:36:53,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:36:53,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:36:53,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc7a4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53, skipping insertion in model container [2019-12-07 13:36:53,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:36:53,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:36:53,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:36:53,620 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:36:53,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:36:53,650 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:36:53,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53 WrapperNode [2019-12-07 13:36:53,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:36:53,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:36:53,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:36:53,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:36:53,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:36:53,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:36:53,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:36:53,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:36:53,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... [2019-12-07 13:36:53,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:36:53,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:36:53,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:36:53,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:36:53,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/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 13:36:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:36:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:36:53,887 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:36:53,887 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 13:36:53,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:36:53 BoogieIcfgContainer [2019-12-07 13:36:53,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:36:53,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:36:53,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:36:53,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:36:53,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:36:53" (1/3) ... [2019-12-07 13:36:53,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a2a62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:36:53, skipping insertion in model container [2019-12-07 13:36:53,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:36:53" (2/3) ... [2019-12-07 13:36:53,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a2a62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:36:53, skipping insertion in model container [2019-12-07 13:36:53,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:36:53" (3/3) ... [2019-12-07 13:36:53,893 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2019-12-07 13:36:53,899 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:36:53,902 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:36:53,909 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:36:53,924 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:36:53,924 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:36:53,924 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:36:53,924 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:36:53,925 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:36:53,925 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:36:53,925 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:36:53,925 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:36:53,935 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-12-07 13:36:53,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:36:53,939 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:36:53,939 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:36:53,940 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:36:53,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:36:53,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1540309938, now seen corresponding path program 1 times [2019-12-07 13:36:53,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:36:53,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456885937] [2019-12-07 13:36:53,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:36:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:36:54,200 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 13:36:54,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456885937] [2019-12-07 13:36:54,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:36:54,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 13:36:54,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832654569] [2019-12-07 13:36:54,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:36:54,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:36:54,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:36:54,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:36:54,222 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2019-12-07 13:36:54,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:36:54,341 INFO L93 Difference]: Finished difference Result 43 states and 59 transitions. [2019-12-07 13:36:54,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:36:54,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 13:36:54,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:36:54,349 INFO L225 Difference]: With dead ends: 43 [2019-12-07 13:36:54,349 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 13:36:54,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:36:54,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 13:36:54,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 13:36:54,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 13:36:54,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 13:36:54,368 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-12-07 13:36:54,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:36:54,369 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:36:54,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:36:54,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:36:54,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:36:54,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 13:36:54,389 INFO L246 CegarLoopResult]: For program point L93(lines 93 102) no Hoare annotation was computed. [2019-12-07 13:36:54,389 INFO L249 CegarLoopResult]: At program point L143(lines 13 145) the Hoare annotation is: true [2019-12-07 13:36:54,389 INFO L242 CegarLoopResult]: At program point L40(lines 22 139) the Hoare annotation is: (<= (* 2863311531 ULTIMATE.start_main_~main__x~0) (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 8589934592 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse0 (- 4294967296))) 3)) (* 12297829383904690176 .cse0) 1431655765))) [2019-12-07 13:36:54,389 INFO L246 CegarLoopResult]: For program point L65(lines 65 80) no Hoare annotation was computed. [2019-12-07 13:36:54,389 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L246 CegarLoopResult]: For program point L86(lines 86 108) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L246 CegarLoopResult]: For program point L20(lines 20 144) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L246 CegarLoopResult]: For program point L115(lines 115 137) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L246 CegarLoopResult]: For program point L45(lines 45 82) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L249 CegarLoopResult]: At program point L136(lines 14 145) the Hoare annotation is: true [2019-12-07 13:36:54,390 INFO L246 CegarLoopResult]: For program point L33(lines 33 138) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L246 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L246 CegarLoopResult]: For program point L54(lines 54 81) no Hoare annotation was computed. [2019-12-07 13:36:54,390 INFO L242 CegarLoopResult]: At program point L50(lines 22 139) the Hoare annotation is: (<= (* 2863311531 ULTIMATE.start_main_~main__x~0) (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 8589934592 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse0 (- 4294967296))) 3)) (* 12297829383904690176 .cse0) 1431655765))) [2019-12-07 13:36:54,390 INFO L249 CegarLoopResult]: At program point L133(lines 33 138) the Hoare annotation is: true [2019-12-07 13:36:54,391 INFO L242 CegarLoopResult]: At program point L59(lines 34 110) the Hoare annotation is: (<= (* 2863311531 ULTIMATE.start_main_~main__x~0) (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 8589934592 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse0 (- 4294967296))) 3)) (* 12297829383904690176 .cse0) 1431655765))) [2019-12-07 13:36:54,391 INFO L249 CegarLoopResult]: At program point L121(lines 33 138) the Hoare annotation is: true [2019-12-07 13:36:54,391 INFO L246 CegarLoopResult]: For program point L22(lines 22 139) no Hoare annotation was computed. [2019-12-07 13:36:54,391 INFO L246 CegarLoopResult]: For program point L43(lines 43 109) no Hoare annotation was computed. [2019-12-07 13:36:54,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:36:54 BoogieIcfgContainer [2019-12-07 13:36:54,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:36:54,404 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:36:54,404 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:36:54,404 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:36:54,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:36:53" (3/4) ... [2019-12-07 13:36:54,407 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:36:54,415 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 13:36:54,415 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 13:36:54,455 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_67fd09c2-24c3-4464-bc14-cc995357bf2e/bin/utaipan/witness.graphml [2019-12-07 13:36:54,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:36:54,456 INFO L168 Benchmark]: Toolchain (without parser) took 1010.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 938.9 MB in the beginning and 1.0 GB in the end (delta: -94.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:36:54,457 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:36:54,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:36:54,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.00 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 13:36:54,458 INFO L168 Benchmark]: Boogie Preprocessor took 15.38 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:36:54,458 INFO L168 Benchmark]: RCFGBuilder took 194.97 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:36:54,458 INFO L168 Benchmark]: TraceAbstraction took 515.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:36:54,458 INFO L168 Benchmark]: Witness Printer took 50.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:36:54,460 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 204.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.00 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 15.38 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 194.97 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 515.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 11.5 GB. * Witness Printer took 50.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 2863311531 * main__x <= 8589934592 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 12297829383904690176 * (main__x / 4294967296) + 1431655765 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 2863311531 * main__x <= 8589934592 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 12297829383904690176 * (main__x / 4294967296) + 1431655765 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 2863311531 * main__x <= 8589934592 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 12297829383904690176 * (main__x / 4294967296) + 1431655765 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 10 SDslu, 25 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 16 NumberOfFragments, 70 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 864 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...