./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/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 356e353e7bb6e96bd959fe4862b56669bada9c19 ........................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/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 356e353e7bb6e96bd959fe4862b56669bada9c19 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:53:14,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:53:14,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:53:14,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:53:14,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:53:15,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:53:15,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:53:15,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:53:15,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:53:15,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:53:15,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:53:15,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:53:15,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:53:15,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:53:15,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:53:15,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:53:15,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:53:15,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:53:15,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:53:15,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:53:15,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:53:15,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:53:15,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:53:15,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:53:15,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:53:15,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:53:15,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:53:15,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:53:15,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:53:15,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:53:15,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:53:15,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:53:15,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:53:15,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:53:15,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:53:15,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:53:15,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:53:15,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:53:15,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:53:15,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:53:15,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:53:15,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:53:15,070 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:53:15,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:53:15,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:53:15,071 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:53:15,071 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:53:15,071 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:53:15,071 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:53:15,072 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:53:15,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:53:15,072 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:53:15,072 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:53:15,072 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:53:15,073 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:53:15,073 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:53:15,073 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:53:15,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:53:15,074 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:53:15,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:53:15,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:53:15,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:53:15,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:53:15,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:53:15,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:53:15,075 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:53:15,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:53:15,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:53:15,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:53:15,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:53:15,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:53:15,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:53:15,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:53:15,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:53:15,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:53:15,077 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:53:15,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:53:15,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:53:15,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:53:15,078 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_0b32dc30-52fa-4dd6-b8da-eca37ef61187/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 -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2019-11-26 02:53:15,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:53:15,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:53:15,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:53:15,234 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:53:15,234 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:53:15,235 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-26 02:53:15,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data/5c9b826b2/3842c40be6b4481dabaa5124c652b467/FLAG4a42ead36 [2019-11-26 02:53:15,745 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:53:15,746 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-26 02:53:15,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data/5c9b826b2/3842c40be6b4481dabaa5124c652b467/FLAG4a42ead36 [2019-11-26 02:53:16,036 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data/5c9b826b2/3842c40be6b4481dabaa5124c652b467 [2019-11-26 02:53:16,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:53:16,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:53:16,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:53:16,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:53:16,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:53:16,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:53:16" (1/1) ... [2019-11-26 02:53:16,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7cc05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:16, skipping insertion in model container [2019-11-26 02:53:16,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:53:16" (1/1) ... [2019-11-26 02:53:16,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:53:16,101 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:53:16,662 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:210) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1028) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2313) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:699) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2313) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleVerifierAssume(StandardFunctionHandler.java:1614) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:210) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1300) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:993) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3448) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2263) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:573) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-26 02:53:16,667 INFO L168 Benchmark]: Toolchain (without parser) took 626.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:16,668 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:53:16,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:16,672 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 624.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:53:18,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:53:18,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:53:18,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:53:18,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:53:18,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:53:18,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:53:18,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:53:18,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:53:18,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:53:18,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:53:18,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:53:18,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:53:18,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:53:18,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:53:18,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:53:18,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:53:18,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:53:18,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:53:18,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:53:18,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:53:18,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:53:18,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:53:18,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:53:18,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:53:18,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:53:18,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:53:18,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:53:18,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:53:18,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:53:18,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:53:18,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:53:18,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:53:18,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:53:18,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:53:18,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:53:18,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:53:18,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:53:18,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:53:18,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:53:18,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:53:18,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:53:18,580 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:53:18,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:53:18,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:53:18,581 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:53:18,581 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:53:18,581 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:53:18,581 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:53:18,582 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:53:18,582 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:53:18,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:53:18,583 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:53:18,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:53:18,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:53:18,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:53:18,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:53:18,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:53:18,584 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:53:18,584 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:53:18,585 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:53:18,585 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:53:18,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:53:18,585 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:53:18,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:53:18,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:53:18,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:53:18,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:53:18,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:53:18,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:53:18,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:53:18,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:53:18,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:53:18,587 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:53:18,588 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:53:18,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:53:18,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:53:18,588 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0b32dc30-52fa-4dd6-b8da-eca37ef61187/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 -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2019-11-26 02:53:18,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:53:18,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:53:18,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:53:18,937 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:53:18,938 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:53:18,938 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-26 02:53:19,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data/14b2faafe/b941a1f41f5a4f92a92118d849e64195/FLAG50b584af5 [2019-11-26 02:53:19,489 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:53:19,489 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-26 02:53:19,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data/14b2faafe/b941a1f41f5a4f92a92118d849e64195/FLAG50b584af5 [2019-11-26 02:53:19,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/data/14b2faafe/b941a1f41f5a4f92a92118d849e64195 [2019-11-26 02:53:19,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:53:19,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:53:19,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:53:19,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:53:19,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:53:19,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:53:19" (1/1) ... [2019-11-26 02:53:19,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68aec896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:19, skipping insertion in model container [2019-11-26 02:53:19,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:53:19" (1/1) ... [2019-11-26 02:53:19,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:53:19,932 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:53:20,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:53:20,576 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:53:20,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:53:21,077 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:53:21,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21 WrapperNode [2019-11-26 02:53:21,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:53:21,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:53:21,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:53:21,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:53:21,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... [2019-11-26 02:53:21,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... [2019-11-26 02:53:21,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:53:21,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:53:21,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:53:21,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:53:21,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... [2019-11-26 02:53:21,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... [2019-11-26 02:53:21,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... [2019-11-26 02:53:21,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... [2019-11-26 02:53:21,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... [2019-11-26 02:53:21,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... [2019-11-26 02:53:21,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... [2019-11-26 02:53:21,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:53:21,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:53:21,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:53:21,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:53:21,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/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 02:53:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:53:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:53:21,593 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:53:21,593 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:53:21,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:53:21 BoogieIcfgContainer [2019-11-26 02:53:21,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:53:21,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:53:21,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:53:21,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:53:21,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:53:19" (1/3) ... [2019-11-26 02:53:21,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6265b6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:53:21, skipping insertion in model container [2019-11-26 02:53:21,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:21" (2/3) ... [2019-11-26 02:53:21,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6265b6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:53:21, skipping insertion in model container [2019-11-26 02:53:21,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:53:21" (3/3) ... [2019-11-26 02:53:21,602 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp4.i [2019-11-26 02:53:21,612 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:53:21,618 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-11-26 02:53:21,629 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-11-26 02:53:21,652 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:53:21,653 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:53:21,653 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:53:21,653 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:53:21,653 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:53:21,654 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:53:21,654 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:53:21,654 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:53:21,670 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-26 02:53:21,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:53:21,676 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:21,677 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:53:21,677 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:21,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:21,683 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-26 02:53:21,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:53:21,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395962557] [2019-11-26 02:53:21,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-26 02:53:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:21,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:53:21,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:53:22,095 WARN L192 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 2 [2019-11-26 02:53:22,108 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 02:53:22,109 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:53:22,134 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 02:53:22,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395962557] [2019-11-26 02:53:22,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:22,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-26 02:53:22,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681461723] [2019-11-26 02:53:22,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:53:22,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:53:22,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:53:22,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:22,159 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2019-11-26 02:53:22,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:22,195 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2019-11-26 02:53:22,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:53:22,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-26 02:53:22,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:22,207 INFO L225 Difference]: With dead ends: 75 [2019-11-26 02:53:22,207 INFO L226 Difference]: Without dead ends: 33 [2019-11-26 02:53:22,212 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:22,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-26 02:53:22,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-26 02:53:22,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-26 02:53:22,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2019-11-26 02:53:22,250 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 4 [2019-11-26 02:53:22,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:22,250 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2019-11-26 02:53:22,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:53:22,251 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2019-11-26 02:53:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:53:22,252 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:22,252 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:53:22,461 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:53:22,461 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:22,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:22,462 INFO L82 PathProgramCache]: Analyzing trace with hash 241686798, now seen corresponding path program 1 times [2019-11-26 02:53:22,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:53:22,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938254401] [2019-11-26 02:53:22,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-26 02:53:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:22,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:53:22,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:53:22,541 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 02:53:22,541 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:53:22,667 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 3 [2019-11-26 02:53:22,672 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 02:53:22,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938254401] [2019-11-26 02:53:22,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:22,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-26 02:53:22,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132537575] [2019-11-26 02:53:22,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:53:22,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:53:22,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:53:22,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:22,675 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 4 states. [2019-11-26 02:53:22,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:22,696 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2019-11-26 02:53:22,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:53:22,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-26 02:53:22,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:22,699 INFO L225 Difference]: With dead ends: 33 [2019-11-26 02:53:22,699 INFO L226 Difference]: Without dead ends: 29 [2019-11-26 02:53:22,700 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:22,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-26 02:53:22,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-26 02:53:22,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 02:53:22,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2019-11-26 02:53:22,707 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 8 [2019-11-26 02:53:22,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:22,708 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2019-11-26 02:53:22,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:53:22,709 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2019-11-26 02:53:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:53:22,713 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:22,714 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:53:22,935 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-26 02:53:22,935 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:22,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:22,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1730276696, now seen corresponding path program 1 times [2019-11-26 02:53:22,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:53:22,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701207493] [2019-11-26 02:53:22,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-26 02:53:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:22,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:53:22,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:53:22,996 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 02:53:22,996 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:53:23,091 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 02:53:23,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701207493] [2019-11-26 02:53:23,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:23,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-26 02:53:23,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812035867] [2019-11-26 02:53:23,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:53:23,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:53:23,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:53:23,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:23,093 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 4 states. [2019-11-26 02:53:23,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:23,111 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2019-11-26 02:53:23,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:53:23,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-26 02:53:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:23,112 INFO L225 Difference]: With dead ends: 29 [2019-11-26 02:53:23,112 INFO L226 Difference]: Without dead ends: 23 [2019-11-26 02:53:23,113 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:23,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-26 02:53:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-26 02:53:23,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-26 02:53:23,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-11-26 02:53:23,116 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2019-11-26 02:53:23,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:23,117 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-11-26 02:53:23,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:53:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-11-26 02:53:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:53:23,118 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:23,118 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:53:23,332 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-26 02:53:23,333 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:23,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:23,333 INFO L82 PathProgramCache]: Analyzing trace with hash 113862466, now seen corresponding path program 1 times [2019-11-26 02:53:23,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:53:23,334 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428015142] [2019-11-26 02:53:23,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-26 02:53:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:23,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:53:23,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:53:23,417 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 02:53:23,417 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:53:23,433 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 02:53:23,433 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428015142] [2019-11-26 02:53:23,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:23,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-26 02:53:23,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963078093] [2019-11-26 02:53:23,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:53:23,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:53:23,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:53:23,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:23,435 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 4 states. [2019-11-26 02:53:23,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:23,449 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-11-26 02:53:23,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:53:23,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-26 02:53:23,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:23,452 INFO L225 Difference]: With dead ends: 23 [2019-11-26 02:53:23,452 INFO L226 Difference]: Without dead ends: 19 [2019-11-26 02:53:23,453 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:23,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-26 02:53:23,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-26 02:53:23,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-26 02:53:23,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-26 02:53:23,455 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 15 [2019-11-26 02:53:23,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:23,456 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-26 02:53:23,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:53:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-26 02:53:23,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-26 02:53:23,456 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:23,459 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:53:23,668 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-26 02:53:23,669 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:23,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:23,669 INFO L82 PathProgramCache]: Analyzing trace with hash -943331954, now seen corresponding path program 1 times [2019-11-26 02:53:23,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:53:23,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573139451] [2019-11-26 02:53:23,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-26 02:53:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:23,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:53:23,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:53:23,849 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 02:53:23,850 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:53:23,859 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 02:53:23,859 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573139451] [2019-11-26 02:53:23,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:23,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-26 02:53:23,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539664357] [2019-11-26 02:53:23,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:53:23,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:53:23,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:53:23,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:53:23,861 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2019-11-26 02:53:23,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:23,870 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-11-26 02:53:23,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:53:23,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-26 02:53:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:23,872 INFO L225 Difference]: With dead ends: 19 [2019-11-26 02:53:23,873 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:53:23,873 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:53:23,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:53:23,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:53:23,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:53:23,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:53:23,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-11-26 02:53:23,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:23,874 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:53:23,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:53:23,875 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:53:23,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:53:24,075 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-26 02:53:24,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:53:24,083 INFO L444 ceAbstractionStarter]: For program point L960(line 960) no Hoare annotation was computed. [2019-11-26 02:53:24,083 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2019-11-26 02:53:24,083 INFO L444 ceAbstractionStarter]: For program point L960-2(lines 954 991) no Hoare annotation was computed. [2019-11-26 02:53:24,084 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 984) no Hoare annotation was computed. [2019-11-26 02:53:24,084 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 960) no Hoare annotation was computed. [2019-11-26 02:53:24,084 INFO L444 ceAbstractionStarter]: For program point L961(line 961) no Hoare annotation was computed. [2019-11-26 02:53:24,084 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 02:53:24,084 INFO L444 ceAbstractionStarter]: For program point L961-2(line 961) no Hoare annotation was computed. [2019-11-26 02:53:24,084 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 968) no Hoare annotation was computed. [2019-11-26 02:53:24,085 INFO L444 ceAbstractionStarter]: For program point L990(line 990) no Hoare annotation was computed. [2019-11-26 02:53:24,085 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:53:24,085 INFO L444 ceAbstractionStarter]: For program point L990-1(line 990) no Hoare annotation was computed. [2019-11-26 02:53:24,085 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:53:24,085 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 983) no Hoare annotation was computed. [2019-11-26 02:53:24,086 INFO L444 ceAbstractionStarter]: For program point L953(lines 953 991) no Hoare annotation was computed. [2019-11-26 02:53:24,086 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 959) no Hoare annotation was computed. [2019-11-26 02:53:24,086 INFO L444 ceAbstractionStarter]: For program point L974(line 974) no Hoare annotation was computed. [2019-11-26 02:53:24,086 INFO L444 ceAbstractionStarter]: For program point L974-1(line 974) no Hoare annotation was computed. [2019-11-26 02:53:24,086 INFO L444 ceAbstractionStarter]: For program point L974-3(lines 954 991) no Hoare annotation was computed. [2019-11-26 02:53:24,086 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:53:24,087 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2019-11-26 02:53:24,087 INFO L444 ceAbstractionStarter]: For program point L983(line 983) no Hoare annotation was computed. [2019-11-26 02:53:24,087 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2019-11-26 02:53:24,087 INFO L444 ceAbstractionStarter]: For program point L983-1(line 983) no Hoare annotation was computed. [2019-11-26 02:53:24,087 INFO L444 ceAbstractionStarter]: For program point L983-3(lines 954 991) no Hoare annotation was computed. [2019-11-26 02:53:24,087 INFO L444 ceAbstractionStarter]: For program point L975(line 975) no Hoare annotation was computed. [2019-11-26 02:53:24,087 INFO L444 ceAbstractionStarter]: For program point L975-2(lines 954 991) no Hoare annotation was computed. [2019-11-26 02:53:24,088 INFO L444 ceAbstractionStarter]: For program point L967(line 967) no Hoare annotation was computed. [2019-11-26 02:53:24,088 INFO L444 ceAbstractionStarter]: For program point L967-1(line 967) no Hoare annotation was computed. [2019-11-26 02:53:24,088 INFO L444 ceAbstractionStarter]: For program point L967-3(lines 954 991) no Hoare annotation was computed. [2019-11-26 02:53:24,088 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2019-11-26 02:53:24,088 INFO L444 ceAbstractionStarter]: For program point L959(line 959) no Hoare annotation was computed. [2019-11-26 02:53:24,088 INFO L444 ceAbstractionStarter]: For program point L959-1(line 959) no Hoare annotation was computed. [2019-11-26 02:53:24,089 INFO L444 ceAbstractionStarter]: For program point L959-3(lines 954 991) no Hoare annotation was computed. [2019-11-26 02:53:24,089 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2019-11-26 02:53:24,089 INFO L444 ceAbstractionStarter]: For program point L984(line 984) no Hoare annotation was computed. [2019-11-26 02:53:24,089 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2019-11-26 02:53:24,089 INFO L444 ceAbstractionStarter]: For program point L984-2(line 984) no Hoare annotation was computed. [2019-11-26 02:53:24,089 INFO L444 ceAbstractionStarter]: For program point L976(line 976) no Hoare annotation was computed. [2019-11-26 02:53:24,090 INFO L444 ceAbstractionStarter]: For program point L976-2(line 976) no Hoare annotation was computed. [2019-11-26 02:53:24,090 INFO L444 ceAbstractionStarter]: For program point L968(line 968) no Hoare annotation was computed. [2019-11-26 02:53:24,090 INFO L444 ceAbstractionStarter]: For program point L968-2(line 968) no Hoare annotation was computed. [2019-11-26 02:53:24,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:53:24 BoogieIcfgContainer [2019-11-26 02:53:24,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:53:24,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:53:24,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:53:24,100 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:53:24,101 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:53:21" (3/4) ... [2019-11-26 02:53:24,104 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:53:24,119 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:53:24,119 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:53:24,119 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:53:24,191 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0b32dc30-52fa-4dd6-b8da-eca37ef61187/bin/utaipan/witness.graphml [2019-11-26 02:53:24,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:53:24,206 INFO L168 Benchmark]: Toolchain (without parser) took 4350.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 955.1 MB in the beginning and 885.0 MB in the end (delta: 70.1 MB). Peak memory consumption was 224.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:24,207 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:53:24,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1218.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 955.1 MB in the beginning and 1.0 GB in the end (delta: -88.6 MB). Peak memory consumption was 76.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:24,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:24,208 INFO L168 Benchmark]: Boogie Preprocessor took 58.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:53:24,208 INFO L168 Benchmark]: RCFGBuilder took 377.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:24,209 INFO L168 Benchmark]: TraceAbstraction took 2497.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 891.6 MB in the end (delta: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:24,209 INFO L168 Benchmark]: Witness Printer took 111.27 ms. Allocated memory is still 1.2 GB. Free memory was 891.6 MB in the beginning and 885.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:24,211 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1218.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 955.1 MB in the beginning and 1.0 GB in the end (delta: -88.6 MB). Peak memory consumption was 76.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 377.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2497.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 891.6 MB in the end (delta: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 11.5 GB. * Witness Printer took 111.27 ms. Allocated memory is still 1.2 GB. Free memory was 891.6 MB in the beginning and 885.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 960]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 983]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 968]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 976]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 974]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 975]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 990]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 967]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 959]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 961]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 984]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 11 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 109 SDtfs, 91 SDslu, 42 SDs, 0 SdLazy, 15 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 1662 SizeOfPredicates, 5 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...