./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:59:51,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:59:51,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:59:51,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:59:51,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:59:51,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:59:51,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:59:51,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:59:51,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:59:51,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:59:51,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:59:51,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:59:51,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:59:51,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:59:51,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:59:51,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:59:51,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:59:51,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:59:51,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:59:51,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:59:51,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:59:51,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:59:51,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:59:51,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:59:51,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:59:51,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:59:51,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:59:51,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:59:51,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:59:51,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:59:51,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:59:51,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:59:51,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:59:51,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:59:51,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:59:51,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:59:51,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:59:51,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:59:51,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:59:51,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:59:51,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:59:51,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 18:59:51,637 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:59:51,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:59:51,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:59:51,638 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:59:51,638 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:59:51,639 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:59:51,639 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:59:51,639 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:59:51,639 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:59:51,639 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:59:51,640 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:59:51,640 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:59:51,640 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:59:51,644 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:59:51,645 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:59:51,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:59:51,646 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:59:51,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:59:51,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:59:51,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:59:51,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:59:51,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:59:51,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:59:51,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:59:51,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:59:51,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:59:51,647 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:59:51,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:59:51,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:59:51,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:59:51,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:59:51,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:59:51,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:59:51,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:59:51,649 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:59:51,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:59:51,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:59:51,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:59:51,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:59:51,650 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-12-09 18:59:51,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:59:51,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:59:51,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:59:51,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:59:51,855 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:59:51,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-12-09 18:59:51,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data/89ff09ba9/4f48325cd2634557ac5cc0c0e22e187a/FLAG0ce9b16d9 [2020-12-09 18:59:52,314 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:59:52,315 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-12-09 18:59:52,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data/89ff09ba9/4f48325cd2634557ac5cc0c0e22e187a/FLAG0ce9b16d9 [2020-12-09 18:59:52,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data/89ff09ba9/4f48325cd2634557ac5cc0c0e22e187a [2020-12-09 18:59:52,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:59:52,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:59:52,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:59:52,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:59:52,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:59:52,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:59:52" (1/1) ... [2020-12-09 18:59:52,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bf83a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:52, skipping insertion in model container [2020-12-09 18:59:52,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:59:52" (1/1) ... [2020-12-09 18:59:52,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:59:52,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:59:52,718 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.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1710) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) 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:1081) 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:2343) 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:706) 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:2343) 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:2343) 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:1570) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1046) 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:1424) 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:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) 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:192) 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:128) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 18:59:52,722 INFO L168 Benchmark]: Toolchain (without parser) took 381.19 ms. Allocated memory is still 119.5 MB. Free memory was 97.3 MB in the beginning and 85.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:59:52,722 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 83.9 MB. Free memory is still 60.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:59:52,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.75 ms. Allocated memory is still 119.5 MB. Free memory was 97.3 MB in the beginning and 85.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:59:52,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 83.9 MB. Free memory is still 60.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 379.75 ms. Allocated memory is still 119.5 MB. Free memory was 97.3 MB in the beginning and 85.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 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 0.2.0-7b2dab5 [2020-12-09 18:59:54,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:59:54,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:59:54,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:59:54,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:59:54,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:59:54,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:59:54,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:59:54,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:59:54,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:59:54,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:59:54,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:59:54,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:59:54,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:59:54,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:59:54,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:59:54,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:59:54,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:59:54,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:59:54,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:59:54,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:59:54,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:59:54,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:59:54,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:59:54,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:59:54,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:59:54,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:59:54,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:59:54,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:59:54,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:59:54,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:59:54,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:59:54,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:59:54,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:59:54,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:59:54,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:59:54,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:59:54,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:59:54,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:59:54,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:59:54,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:59:54,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 18:59:54,150 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:59:54,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:59:54,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:59:54,152 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:59:54,152 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:59:54,152 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:59:54,152 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:59:54,153 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:59:54,153 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:59:54,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:59:54,154 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:59:54,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:59:54,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:59:54,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:59:54,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:59:54,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:59:54,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:59:54,155 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:59:54,155 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:59:54,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:59:54,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:59:54,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:59:54,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:59:54,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:59:54,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:59:54,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:59:54,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:59:54,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:59:54,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:59:54,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:59:54,157 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:59:54,157 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:59:54,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:59:54,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:59:54,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:59:54,158 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-12-09 18:59:54,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:59:54,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:59:54,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:59:54,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:59:54,435 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:59:54,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-12-09 18:59:54,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data/3576e9bcb/326e523c03d24ea0ac48eac60f4913a5/FLAG4afec5456 [2020-12-09 18:59:54,917 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:59:54,917 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-12-09 18:59:54,929 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data/3576e9bcb/326e523c03d24ea0ac48eac60f4913a5/FLAG4afec5456 [2020-12-09 18:59:54,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/data/3576e9bcb/326e523c03d24ea0ac48eac60f4913a5 [2020-12-09 18:59:54,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:59:54,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:59:54,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:59:54,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:59:54,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:59:54,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:59:54" (1/1) ... [2020-12-09 18:59:54,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3527b755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:54, skipping insertion in model container [2020-12-09 18:59:54,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:59:54" (1/1) ... [2020-12-09 18:59:54,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:59:54,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:59:55,347 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2020-12-09 18:59:55,351 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2020-12-09 18:59:55,352 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2020-12-09 18:59:55,354 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2020-12-09 18:59:55,355 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2020-12-09 18:59:55,355 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2020-12-09 18:59:55,356 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2020-12-09 18:59:55,356 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2020-12-09 18:59:55,357 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2020-12-09 18:59:55,358 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2020-12-09 18:59:55,358 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2020-12-09 18:59:55,359 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2020-12-09 18:59:55,360 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2020-12-09 18:59:55,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:59:55,370 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:59:55,396 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2020-12-09 18:59:55,397 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2020-12-09 18:59:55,399 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2020-12-09 18:59:55,401 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2020-12-09 18:59:55,401 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2020-12-09 18:59:55,402 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2020-12-09 18:59:55,402 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2020-12-09 18:59:55,403 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2020-12-09 18:59:55,403 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2020-12-09 18:59:55,404 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2020-12-09 18:59:55,404 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2020-12-09 18:59:55,405 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2020-12-09 18:59:55,407 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2020-12-09 18:59:55,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:59:55,581 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:59:55,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55 WrapperNode [2020-12-09 18:59:55,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:59:55,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:59:55,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:59:55,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:59:55,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... [2020-12-09 18:59:55,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... [2020-12-09 18:59:55,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:59:55,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:59:55,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:59:55,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:59:55,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... [2020-12-09 18:59:55,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... [2020-12-09 18:59:55,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... [2020-12-09 18:59:55,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... [2020-12-09 18:59:55,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... [2020-12-09 18:59:55,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... [2020-12-09 18:59:55,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... [2020-12-09 18:59:55,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:59:55,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:59:55,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:59:55,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:59:55,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/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 [2020-12-09 18:59:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 18:59:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:59:55,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:59:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 19:00:07,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 19:00:07,299 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-09 19:00:07,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:00:07 BoogieIcfgContainer [2020-12-09 19:00:07,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 19:00:07,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 19:00:07,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 19:00:07,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 19:00:07,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:59:54" (1/3) ... [2020-12-09 19:00:07,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428d3e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:00:07, skipping insertion in model container [2020-12-09 19:00:07,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:55" (2/3) ... [2020-12-09 19:00:07,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428d3e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:00:07, skipping insertion in model container [2020-12-09 19:00:07,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:00:07" (3/3) ... [2020-12-09 19:00:07,305 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2020-12-09 19:00:07,313 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 19:00:07,316 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-12-09 19:00:07,323 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-12-09 19:00:07,338 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 19:00:07,338 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 19:00:07,339 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 19:00:07,339 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 19:00:07,339 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 19:00:07,339 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 19:00:07,339 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 19:00:07,339 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 19:00:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-12-09 19:00:07,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 19:00:07,351 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:00:07,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 19:00:07,352 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:00:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:00:07,356 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-09 19:00:07,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:00:07,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790601263] [2020-12-09 19:00:07,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/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 [2020-12-09 19:00:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:00:07,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 19:00:07,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:00:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:00:07,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:00:07,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790601263] [2020-12-09 19:00:07,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:00:07,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:00:07,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424903150] [2020-12-09 19:00:07,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 19:00:07,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:00:07,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 19:00:07,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:07,483 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 3 states. [2020-12-09 19:00:12,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:00:12,769 INFO L93 Difference]: Finished difference Result 95 states and 124 transitions. [2020-12-09 19:00:12,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 19:00:12,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 19:00:12,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:00:12,792 INFO L225 Difference]: With dead ends: 95 [2020-12-09 19:00:12,792 INFO L226 Difference]: Without dead ends: 43 [2020-12-09 19:00:12,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:12,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-09 19:00:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-12-09 19:00:12,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-12-09 19:00:12,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2020-12-09 19:00:12,819 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 4 [2020-12-09 19:00:12,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:00:12,819 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2020-12-09 19:00:12,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 19:00:12,819 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2020-12-09 19:00:12,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 19:00:12,819 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:00:12,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:00:13,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 19:00:13,021 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:00:13,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:00:13,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1808724044, now seen corresponding path program 1 times [2020-12-09 19:00:13,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:00:13,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895580575] [2020-12-09 19:00:13,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/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 [2020-12-09 19:00:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:00:13,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 19:00:13,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:00:13,375 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2020-12-09 19:00:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:00:13,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:00:13,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895580575] [2020-12-09 19:00:13,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:00:13,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 19:00:13,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884548632] [2020-12-09 19:00:13,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 19:00:13,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:00:13,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 19:00:13,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 19:00:13,411 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand 5 states. [2020-12-09 19:00:20,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:00:20,715 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2020-12-09 19:00:20,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 19:00:20,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 19:00:20,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:00:20,724 INFO L225 Difference]: With dead ends: 43 [2020-12-09 19:00:20,724 INFO L226 Difference]: Without dead ends: 41 [2020-12-09 19:00:20,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-09 19:00:20,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-09 19:00:20,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-09 19:00:20,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-09 19:00:20,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2020-12-09 19:00:20,728 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 7 [2020-12-09 19:00:20,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:00:20,728 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2020-12-09 19:00:20,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 19:00:20,729 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2020-12-09 19:00:20,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 19:00:20,729 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:00:20,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:00:20,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 19:00:20,931 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:00:20,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:00:20,934 INFO L82 PathProgramCache]: Analyzing trace with hash 235874606, now seen corresponding path program 1 times [2020-12-09 19:00:20,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:00:20,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909611831] [2020-12-09 19:00:20,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/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 [2020-12-09 19:00:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:00:20,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 19:00:20,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:00:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:00:21,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:00:21,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909611831] [2020-12-09 19:00:21,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:00:21,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:00:21,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881396557] [2020-12-09 19:00:21,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 19:00:21,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:00:21,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 19:00:21,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:21,005 INFO L87 Difference]: Start difference. First operand 41 states and 40 transitions. Second operand 3 states. [2020-12-09 19:00:28,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:00:28,231 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2020-12-09 19:00:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 19:00:28,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-09 19:00:28,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:00:28,237 INFO L225 Difference]: With dead ends: 41 [2020-12-09 19:00:28,237 INFO L226 Difference]: Without dead ends: 37 [2020-12-09 19:00:28,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:28,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-09 19:00:28,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-09 19:00:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-09 19:00:28,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2020-12-09 19:00:28,240 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 8 [2020-12-09 19:00:28,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:00:28,240 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2020-12-09 19:00:28,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 19:00:28,241 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2020-12-09 19:00:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 19:00:28,241 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:00:28,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:00:28,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 19:00:28,443 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:00:28,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:00:28,445 INFO L82 PathProgramCache]: Analyzing trace with hash 377772985, now seen corresponding path program 1 times [2020-12-09 19:00:28,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:00:28,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047960742] [2020-12-09 19:00:28,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/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 [2020-12-09 19:00:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:00:28,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 19:00:28,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:00:28,765 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 17 [2020-12-09 19:00:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:00:28,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:00:28,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047960742] [2020-12-09 19:00:28,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:00:28,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 19:00:28,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740907631] [2020-12-09 19:00:28,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 19:00:28,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:00:28,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 19:00:28,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 19:00:28,824 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand 5 states. [2020-12-09 19:00:36,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:00:36,669 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2020-12-09 19:00:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 19:00:36,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-09 19:00:36,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:00:36,680 INFO L225 Difference]: With dead ends: 37 [2020-12-09 19:00:36,680 INFO L226 Difference]: Without dead ends: 35 [2020-12-09 19:00:36,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-09 19:00:36,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-09 19:00:36,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-09 19:00:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 19:00:36,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2020-12-09 19:00:36,683 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 11 [2020-12-09 19:00:36,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:00:36,683 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2020-12-09 19:00:36,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 19:00:36,683 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-12-09 19:00:36,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 19:00:36,683 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:00:36,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:00:36,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 19:00:36,885 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:00:36,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:00:36,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1173935240, now seen corresponding path program 1 times [2020-12-09 19:00:36,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:00:36,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507013806] [2020-12-09 19:00:36,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/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 [2020-12-09 19:00:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:00:36,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 19:00:36,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:00:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:00:37,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:00:37,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507013806] [2020-12-09 19:00:37,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:00:37,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:00:37,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295367434] [2020-12-09 19:00:37,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 19:00:37,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:00:37,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 19:00:37,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:37,022 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 3 states. [2020-12-09 19:00:43,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:00:43,603 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-12-09 19:00:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 19:00:43,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-09 19:00:43,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:00:43,610 INFO L225 Difference]: With dead ends: 35 [2020-12-09 19:00:43,610 INFO L226 Difference]: Without dead ends: 31 [2020-12-09 19:00:43,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:43,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-09 19:00:43,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-09 19:00:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 19:00:43,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2020-12-09 19:00:43,612 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 12 [2020-12-09 19:00:43,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:00:43,613 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2020-12-09 19:00:43,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 19:00:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-12-09 19:00:43,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 19:00:43,613 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:00:43,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:00:43,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 19:00:43,815 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:00:43,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:00:43,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1424765088, now seen corresponding path program 1 times [2020-12-09 19:00:43,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:00:43,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124957751] [2020-12-09 19:00:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 19:00:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:00:43,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 19:00:43,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:00:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:00:43,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:00:43,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124957751] [2020-12-09 19:00:43,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:00:43,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:00:43,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842686752] [2020-12-09 19:00:43,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 19:00:43,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:00:43,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 19:00:43,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:43,908 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 3 states. [2020-12-09 19:00:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:00:51,819 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2020-12-09 19:00:51,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 19:00:51,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-12-09 19:00:51,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:00:51,830 INFO L225 Difference]: With dead ends: 31 [2020-12-09 19:00:51,830 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 19:00:51,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 19:00:51,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 19:00:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 19:00:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2020-12-09 19:00:51,832 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 14 [2020-12-09 19:00:51,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:00:51,832 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2020-12-09 19:00:51,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 19:00:51,832 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2020-12-09 19:00:51,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 19:00:51,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:00:51,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:00:52,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 19:00:52,035 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:00:52,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:00:52,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1218048905, now seen corresponding path program 1 times [2020-12-09 19:00:52,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:00:52,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048261109] [2020-12-09 19:00:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 19:00:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:00:52,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 19:00:52,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:00:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:00:52,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:00:52,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048261109] [2020-12-09 19:00:52,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:00:52,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:00:52,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675158828] [2020-12-09 19:00:52,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 19:00:52,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:00:52,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 19:00:52,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:52,118 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 3 states. [2020-12-09 19:00:59,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:00:59,988 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2020-12-09 19:00:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 19:00:59,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-09 19:00:59,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:00:59,998 INFO L225 Difference]: With dead ends: 29 [2020-12-09 19:00:59,998 INFO L226 Difference]: Without dead ends: 27 [2020-12-09 19:00:59,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:00:59,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-09 19:01:00,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-09 19:01:00,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-09 19:01:00,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-12-09 19:01:00,000 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 15 [2020-12-09 19:01:00,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:01:00,000 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-12-09 19:01:00,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 19:01:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-12-09 19:01:00,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 19:01:00,001 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:01:00,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:01:00,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 19:01:00,203 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:01:00,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:01:00,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1279638800, now seen corresponding path program 1 times [2020-12-09 19:01:00,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:01:00,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304659109] [2020-12-09 19:01:00,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 19:01:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:01:00,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 19:01:00,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:01:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:01:00,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:01:00,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304659109] [2020-12-09 19:01:00,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:01:00,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:01:00,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834445838] [2020-12-09 19:01:00,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 19:01:00,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:01:00,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 19:01:00,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 19:01:00,477 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 4 states. [2020-12-09 19:01:05,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:01:05,028 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-12-09 19:01:05,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 19:01:05,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-09 19:01:05,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:01:05,038 INFO L225 Difference]: With dead ends: 27 [2020-12-09 19:01:05,038 INFO L226 Difference]: Without dead ends: 25 [2020-12-09 19:01:05,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 19:01:05,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-09 19:01:05,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-12-09 19:01:05,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-09 19:01:05,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2020-12-09 19:01:05,040 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 18 [2020-12-09 19:01:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:01:05,040 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2020-12-09 19:01:05,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 19:01:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-12-09 19:01:05,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 19:01:05,041 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:01:05,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:01:05,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-09 19:01:05,243 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:01:05,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:01:05,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1014092967, now seen corresponding path program 1 times [2020-12-09 19:01:05,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:01:05,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082136143] [2020-12-09 19:01:05,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 19:01:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:01:05,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 19:01:05,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:01:05,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:01:05,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:01:05,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082136143] [2020-12-09 19:01:05,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:01:05,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:01:05,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737249482] [2020-12-09 19:01:05,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 19:01:05,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:01:05,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 19:01:05,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 19:01:05,545 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 4 states. [2020-12-09 19:01:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:01:10,754 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-12-09 19:01:10,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 19:01:10,765 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-12-09 19:01:10,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:01:10,765 INFO L225 Difference]: With dead ends: 25 [2020-12-09 19:01:10,765 INFO L226 Difference]: Without dead ends: 23 [2020-12-09 19:01:10,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 19:01:10,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-09 19:01:10,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-12-09 19:01:10,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-09 19:01:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2020-12-09 19:01:10,767 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 19 [2020-12-09 19:01:10,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:01:10,767 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2020-12-09 19:01:10,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 19:01:10,767 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-12-09 19:01:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 19:01:10,768 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:01:10,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:01:10,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-12-09 19:01:10,970 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:01:10,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:01:10,971 INFO L82 PathProgramCache]: Analyzing trace with hash -39659491, now seen corresponding path program 1 times [2020-12-09 19:01:10,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:01:10,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073576835] [2020-12-09 19:01:10,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-12-09 19:01:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:01:11,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 19:01:11,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:01:11,529 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 15 [2020-12-09 19:01:17,587 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (and (fp.isSubnormal ULTIMATE.start_main_~f~0) (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)) ULTIMATE.start_main_~f~0)))) is different from false [2020-12-09 19:01:19,597 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (and (fp.isSubnormal ULTIMATE.start_main_~f~0) (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)) ULTIMATE.start_main_~f~0)))) is different from true [2020-12-09 19:01:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:01:19,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:01:19,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073576835] [2020-12-09 19:01:19,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:01:19,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 19:01:19,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320342761] [2020-12-09 19:01:19,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 19:01:19,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:01:19,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 19:01:19,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=11, Unknown=2, NotChecked=6, Total=30 [2020-12-09 19:01:19,599 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 6 states. [2020-12-09 19:01:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:01:25,755 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-12-09 19:01:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 19:01:25,765 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-09 19:01:25,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:01:25,765 INFO L225 Difference]: With dead ends: 23 [2020-12-09 19:01:25,765 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 19:01:25,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=16, Invalid=16, Unknown=2, NotChecked=8, Total=42 [2020-12-09 19:01:25,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 19:01:25,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 19:01:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 19:01:25,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 19:01:25,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-12-09 19:01:25,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:01:25,766 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 19:01:25,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 19:01:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 19:01:25,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 19:01:25,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-12-09 19:01:25,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 19:01:26,029 INFO L262 CegarLoopResult]: For program point L2-1(line 391) no Hoare annotation was computed. [2020-12-09 19:01:26,029 INFO L262 CegarLoopResult]: For program point L2-2(line 402) no Hoare annotation was computed. [2020-12-09 19:01:26,029 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 397) no Hoare annotation was computed. [2020-12-09 19:01:26,029 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 387) no Hoare annotation was computed. [2020-12-09 19:01:26,029 INFO L262 CegarLoopResult]: For program point L399(line 399) no Hoare annotation was computed. [2020-12-09 19:01:26,029 INFO L262 CegarLoopResult]: For program point L399-2(line 399) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 402) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L391(line 391) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L391-2(lines 379 404) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 392) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L392-2(lines 379 404) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L384-1(line 384) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L384-3(line 384) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 399) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L393(line 393) no Hoare annotation was computed. [2020-12-09 19:01:26,030 INFO L262 CegarLoopResult]: For program point L393-2(lines 379 404) no Hoare annotation was computed. [2020-12-09 19:01:26,032 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 394) no Hoare annotation was computed. [2020-12-09 19:01:26,032 INFO L262 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-12-09 19:01:26,032 INFO L262 CegarLoopResult]: For program point L402-2(line 402) no Hoare annotation was computed. [2020-12-09 19:01:26,032 INFO L262 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-12-09 19:01:26,032 INFO L262 CegarLoopResult]: For program point L394-2(lines 379 404) no Hoare annotation was computed. [2020-12-09 19:01:26,032 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 393) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L265 CegarLoopResult]: At program point L403(lines 378 404) the Hoare annotation is: true [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L395-2(lines 379 404) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L387(line 387) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L387-2(lines 379 404) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 396) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L396(line 396) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L396-2(lines 379 404) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L388(line 388) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L388-2(line 388) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 395) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point L397-2(lines 379 404) no Hoare annotation was computed. [2020-12-09 19:01:26,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 398) no Hoare annotation was computed. [2020-12-09 19:01:26,034 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 388) no Hoare annotation was computed. [2020-12-09 19:01:26,034 INFO L262 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-12-09 19:01:26,034 INFO L262 CegarLoopResult]: For program point L398-2(lines 379 404) no Hoare annotation was computed. [2020-12-09 19:01:26,034 INFO L262 CegarLoopResult]: For program point L2(line 387) no Hoare annotation was computed. [2020-12-09 19:01:26,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:01:26 BoogieIcfgContainer [2020-12-09 19:01:26,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 19:01:26,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 19:01:26,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 19:01:26,039 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 19:01:26,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:00:07" (3/4) ... [2020-12-09 19:01:26,041 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 19:01:26,048 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-09 19:01:26,049 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 19:01:26,049 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 19:01:26,049 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 19:01:26,079 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_747c4138-e3fe-422a-8b50-d22dbc779ec1/bin/utaipan/witness.graphml [2020-12-09 19:01:26,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 19:01:26,080 INFO L168 Benchmark]: Toolchain (without parser) took 91138.64 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 39.9 MB in the beginning and 51.9 MB in the end (delta: -12.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-09 19:01:26,080 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 60.8 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:01:26,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.38 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 39.7 MB in the beginning and 49.8 MB in the end (delta: -10.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-09 19:01:26,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.45 ms. Allocated memory is still 77.6 MB. Free memory was 49.8 MB in the beginning and 47.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:01:26,081 INFO L168 Benchmark]: Boogie Preprocessor took 19.27 ms. Allocated memory is still 77.6 MB. Free memory was 47.7 MB in the beginning and 46.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:01:26,081 INFO L168 Benchmark]: RCFGBuilder took 11660.20 ms. Allocated memory is still 77.6 MB. Free memory was 45.6 MB in the beginning and 53.6 MB in the end (delta: -8.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-09 19:01:26,082 INFO L168 Benchmark]: TraceAbstraction took 78738.08 ms. Allocated memory is still 77.6 MB. Free memory was 53.6 MB in the beginning and 56.1 MB in the end (delta: -2.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2020-12-09 19:01:26,082 INFO L168 Benchmark]: Witness Printer took 40.34 ms. Allocated memory is still 77.6 MB. Free memory was 56.1 MB in the beginning and 51.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 19:01:26,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 60.8 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 639.38 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 39.7 MB in the beginning and 49.8 MB in the end (delta: -10.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.45 ms. Allocated memory is still 77.6 MB. Free memory was 49.8 MB in the beginning and 47.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.27 ms. Allocated memory is still 77.6 MB. Free memory was 47.7 MB in the beginning and 46.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 11660.20 ms. Allocated memory is still 77.6 MB. Free memory was 45.6 MB in the beginning and 53.6 MB in the end (delta: -8.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 78738.08 ms. Allocated memory is still 77.6 MB. Free memory was 53.6 MB in the beginning and 56.1 MB in the end (delta: -2.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. * Witness Printer took 40.34 ms. Allocated memory is still 77.6 MB. Free memory was 56.1 MB in the beginning and 51.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 387]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 396]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 395]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 384]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 388]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 402]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 392]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 393]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 394]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 398]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 399]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 397]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - InvariantResult [Line: 378]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 78.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 66.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 179 SDtfs, 194 SDslu, 85 SDs, 0 SdLazy, 201 SolverSat, 8 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 64.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 120 ConstructedInterpolants, 20 QuantifiedInterpolants, 16734 SizeOfPredicates, 34 NumberOfNonLiveVariables, 354 ConjunctsInSsa, 37 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...