./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0873a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0873a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG --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 f3f9d32da1177faed7c14092606e9e023b39ad9852c24cd1dd4f6372eee72684 .............................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0873a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG --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 f3f9d32da1177faed7c14092606e9e023b39ad9852c24cd1dd4f6372eee72684 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:26:54,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:26:54,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:26:54,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:26:54,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:26:54,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:26:54,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:26:54,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:26:54,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:26:54,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:26:54,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:26:54,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:26:54,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:26:54,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:26:54,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:26:54,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:26:54,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:26:54,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:26:54,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:26:55,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:26:55,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:26:55,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:26:55,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:26:55,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:26:55,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:26:55,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:26:55,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:26:55,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:26:55,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:26:55,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:26:55,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:26:55,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:26:55,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:26:55,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:26:55,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:26:55,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:26:55,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:26:55,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:26:55,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:26:55,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:26:55,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:26:55,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:26:55,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:26:55,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:26:55,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:26:55,091 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:26:55,091 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:26:55,091 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:26:55,092 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:26:55,092 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:26:55,098 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:26:55,098 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:26:55,100 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:26:55,100 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:26:55,100 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:26:55,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:26:55,101 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:26:55,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:26:55,102 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:26:55,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:26:55,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:26:55,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:26:55,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:26:55,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:26:55,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:26:55,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:26:55,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:26:55,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:26:55,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:26:55,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:26:55,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:26:55,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:26:55,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:26:55,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:26:55,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:26:55,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:26:55,109 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:26:55,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:26:55,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:26:55,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:26:55,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:26:55,110 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_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3f9d32da1177faed7c14092606e9e023b39ad9852c24cd1dd4f6372eee72684 [2021-10-29 05:26:55,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:26:55,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:26:55,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:26:55,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:26:55,482 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:26:55,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0873a.c [2021-10-29 05:26:55,574 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data/99f80d135/13f3b849743a49479c2f6eb7760155ae/FLAGcccf3e2fd [2021-10-29 05:26:56,171 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:26:56,172 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/sv-benchmarks/c/float-newlib/double_req_bl_0873a.c [2021-10-29 05:26:56,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data/99f80d135/13f3b849743a49479c2f6eb7760155ae/FLAGcccf3e2fd [2021-10-29 05:26:56,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data/99f80d135/13f3b849743a49479c2f6eb7760155ae [2021-10-29 05:26:56,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:26:56,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:26:56,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:26:56,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:26:56,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:26:56,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:26:56" (1/1) ... [2021-10-29 05:26:56,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c162225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:56, skipping insertion in model container [2021-10-29 05:26:56,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:26:56" (1/1) ... [2021-10-29 05:26:56,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:26:56,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:26:56,816 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1686) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$41(StandardFunctionHandler.java:360) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1414) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1984) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1613) 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:1052) 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.visit(CHandler.java:1590) 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:1052) 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:1436) 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:3224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2305) 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) [2021-10-29 05:26:56,821 INFO L168 Benchmark]: Toolchain (without parser) took 358.19 ms. Allocated memory is still 132.1 MB. Free memory was 96.3 MB in the beginning and 103.2 MB in the end (delta: -6.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:26:56,822 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 36.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:26:56,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.15 ms. Allocated memory is still 132.1 MB. Free memory was 96.3 MB in the beginning and 103.2 MB in the end (delta: -6.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:26:56,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 36.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.15 ms. Allocated memory is still 132.1 MB. Free memory was 96.3 MB in the beginning and 103.2 MB in the end (delta: -6.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:26:59,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:26:59,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:26:59,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:26:59,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:26:59,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:26:59,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:26:59,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:26:59,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:26:59,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:26:59,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:26:59,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:26:59,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:26:59,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:26:59,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:26:59,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:26:59,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:26:59,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:26:59,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:26:59,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:26:59,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:26:59,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:26:59,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:26:59,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:26:59,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:26:59,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:26:59,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:26:59,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:26:59,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:26:59,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:26:59,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:26:59,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:26:59,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:26:59,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:26:59,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:26:59,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:26:59,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:26:59,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:26:59,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:26:59,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:26:59,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:26:59,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:26:59,203 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:26:59,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:26:59,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:26:59,204 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:26:59,205 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:26:59,205 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:26:59,205 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:26:59,205 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:26:59,205 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:26:59,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:26:59,208 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:26:59,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:26:59,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:26:59,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:26:59,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:26:59,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:26:59,209 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:26:59,209 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:26:59,209 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:26:59,210 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:26:59,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:26:59,210 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:26:59,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:26:59,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:26:59,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:26:59,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:26:59,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:26:59,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:26:59,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:26:59,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:26:59,212 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:26:59,212 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:26:59,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:26:59,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:26:59,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:26:59,213 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_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3f9d32da1177faed7c14092606e9e023b39ad9852c24cd1dd4f6372eee72684 [2021-10-29 05:26:59,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:26:59,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:26:59,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:26:59,641 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:26:59,644 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:26:59,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0873a.c [2021-10-29 05:26:59,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data/a4f590e05/ac8ceae2b60d42e59b012b33888300bb/FLAGf2816d9c0 [2021-10-29 05:27:00,350 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:27:00,350 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/sv-benchmarks/c/float-newlib/double_req_bl_0873a.c [2021-10-29 05:27:00,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data/a4f590e05/ac8ceae2b60d42e59b012b33888300bb/FLAGf2816d9c0 [2021-10-29 05:27:00,662 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/data/a4f590e05/ac8ceae2b60d42e59b012b33888300bb [2021-10-29 05:27:00,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:27:00,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:27:00,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:27:00,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:27:00,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:27:00,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:27:00" (1/1) ... [2021-10-29 05:27:00,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ab1f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:00, skipping insertion in model container [2021-10-29 05:27:00,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:27:00" (1/1) ... [2021-10-29 05:27:00,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:27:00,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:27:01,010 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/sv-benchmarks/c/float-newlib/double_req_bl_0873a.c[13946,13959] [2021-10-29 05:27:01,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:27:01,067 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:27:01,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/sv-benchmarks/c/float-newlib/double_req_bl_0873a.c[13946,13959] [2021-10-29 05:27:01,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:27:01,231 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:27:01,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01 WrapperNode [2021-10-29 05:27:01,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:27:01,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:27:01,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:27:01,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:27:01,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:27:01,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:27:01,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:27:01,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:27:01,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:27:01,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:27:01,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:27:01,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:27:01,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (1/1) ... [2021-10-29 05:27:01,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:27:01,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:27:01,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:27:01,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:27:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 05:27:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 05:27:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:27:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:27:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-29 05:27:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:27:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:27:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:27:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:27:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:27:45,914 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:27:45,915 INFO L299 CfgBuilder]: Removed 88 assume(true) statements. [2021-10-29 05:27:45,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:27:45 BoogieIcfgContainer [2021-10-29 05:27:45,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:27:45,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:27:45,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:27:45,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:27:45,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:27:00" (1/3) ... [2021-10-29 05:27:45,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f18ec3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:27:45, skipping insertion in model container [2021-10-29 05:27:45,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:01" (2/3) ... [2021-10-29 05:27:45,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f18ec3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:27:45, skipping insertion in model container [2021-10-29 05:27:45,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:27:45" (3/3) ... [2021-10-29 05:27:45,929 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0873a.c [2021-10-29 05:27:45,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:27:45,935 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:27:45,985 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:27:45,991 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:27:45,991 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:27:46,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 208 states have (on average 1.7259615384615385) internal successors, (359), 209 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:46,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:27:46,017 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:46,018 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:46,018 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:46,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:46,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1640331358, now seen corresponding path program 1 times [2021-10-29 05:27:46,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:27:46,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328657898] [2021-10-29 05:27:46,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:46,037 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:27:46,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:27:46,040 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:27:46,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:27:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:46,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:27:46,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:27:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:46,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:27:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:46,779 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:27:46,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328657898] [2021-10-29 05:27:46,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328657898] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:46,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:46,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:27:46,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474237726] [2021-10-29 05:27:46,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:27:46,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:27:46,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:27:46,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:27:46,813 INFO L87 Difference]: Start difference. First operand has 210 states, 208 states have (on average 1.7259615384615385) internal successors, (359), 209 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:46,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:46,881 INFO L93 Difference]: Finished difference Result 418 states and 716 transitions. [2021-10-29 05:27:46,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:27:46,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 05:27:46,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:46,901 INFO L225 Difference]: With dead ends: 418 [2021-10-29 05:27:46,901 INFO L226 Difference]: Without dead ends: 207 [2021-10-29 05:27:46,904 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:27:46,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-29 05:27:46,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-10-29 05:27:46,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.383495145631068) internal successors, (285), 206 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:46,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 285 transitions. [2021-10-29 05:27:46,960 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 285 transitions. Word has length 9 [2021-10-29 05:27:46,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:46,961 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 285 transitions. [2021-10-29 05:27:46,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:46,961 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 285 transitions. [2021-10-29 05:27:46,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:27:46,962 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:46,962 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:46,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-29 05:27:47,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:27:47,168 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:47,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:47,169 INFO L85 PathProgramCache]: Analyzing trace with hash 559153733, now seen corresponding path program 1 times [2021-10-29 05:27:47,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:27:47,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840673291] [2021-10-29 05:27:47,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:47,170 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:27:47,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:27:47,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:27:47,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:27:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:47,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 05:27:47,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:27:48,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:48,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:27:51,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:51,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:27:51,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840673291] [2021-10-29 05:27:51,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840673291] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:51,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:51,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:27:51,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435994608] [2021-10-29 05:27:51,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:27:51,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:27:51,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:27:51,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:27:51,168 INFO L87 Difference]: Start difference. First operand 207 states and 285 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:01,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:28:01,246 INFO L93 Difference]: Finished difference Result 332 states and 449 transitions. [2021-10-29 05:28:01,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:28:01,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 05:28:01,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:28:01,363 INFO L225 Difference]: With dead ends: 332 [2021-10-29 05:28:01,363 INFO L226 Difference]: Without dead ends: 137 [2021-10-29 05:28:01,365 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:28:01,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-29 05:28:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 133. [2021-10-29 05:28:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 132 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 166 transitions. [2021-10-29 05:28:01,376 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 166 transitions. Word has length 11 [2021-10-29 05:28:01,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:28:01,376 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 166 transitions. [2021-10-29 05:28:01,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:01,377 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 166 transitions. [2021-10-29 05:28:01,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:28:01,377 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:28:01,378 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:28:01,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:28:01,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:28:01,579 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:28:01,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:28:01,579 INFO L85 PathProgramCache]: Analyzing trace with hash -305805344, now seen corresponding path program 1 times [2021-10-29 05:28:01,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:28:01,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208913876] [2021-10-29 05:28:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:28:01,580 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:28:01,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:28:01,582 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:28:01,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:28:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:28:01,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:28:01,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:28:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:28:03,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:28:03,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:28:03,918 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:28:03,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208913876] [2021-10-29 05:28:03,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208913876] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:28:03,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:28:03,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:28:03,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366526715] [2021-10-29 05:28:03,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:28:03,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:28:03,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:28:03,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:28:03,921 INFO L87 Difference]: Start difference. First operand 133 states and 166 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:29:37,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:29:37,033 INFO L93 Difference]: Finished difference Result 141 states and 172 transitions. [2021-10-29 05:29:37,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:29:37,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 05:29:37,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:29:37,070 INFO L225 Difference]: With dead ends: 141 [2021-10-29 05:29:37,070 INFO L226 Difference]: Without dead ends: 137 [2021-10-29 05:29:37,071 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:29:37,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-29 05:29:37,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 133. [2021-10-29 05:29:37,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.2424242424242424) internal successors, (164), 132 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:29:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 164 transitions. [2021-10-29 05:29:37,086 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 164 transitions. Word has length 13 [2021-10-29 05:29:37,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:29:37,086 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 164 transitions. [2021-10-29 05:29:37,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:29:37,087 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 164 transitions. [2021-10-29 05:29:37,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:29:37,088 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:29:37,088 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:29:37,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:29:37,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:29:37,301 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:29:37,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:29:37,302 INFO L85 PathProgramCache]: Analyzing trace with hash -305745762, now seen corresponding path program 1 times [2021-10-29 05:29:37,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:29:37,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103990375] [2021-10-29 05:29:37,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:29:37,303 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:29:37,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:29:37,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:29:37,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:29:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:29:37,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 05:29:37,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:29:38,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2021-10-29 05:29:40,412 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:29:40,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 74 [2021-10-29 05:29:41,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-10-29 05:29:45,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:29:45,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:29:51,336 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:29:51,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 95 treesize of output 94 [2021-10-29 05:29:51,550 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:29:51,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 98 [2021-10-29 05:29:51,580 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:29:51,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103990375] [2021-10-29 05:29:51,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-10-29 05:29:51,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1689308970] [2021-10-29 05:29:51,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:29:51,582 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:29:51,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:29:51,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:29:51,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-29 05:29:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:29:56,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 05:29:56,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@2189faa5 [2021-10-29 05:29:56,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922516727] [2021-10-29 05:29:56,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:29:56,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:29:56,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:29:56,501 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:29:56,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-29 05:29:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:29:56,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:29:56,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@2189faa5 [2021-10-29 05:29:56,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:29:56,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-29 05:29:56,687 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-29 05:29:56,687 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-29 05:29:56,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:29:56,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:29:56,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-29 05:29:57,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:29:57,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt [2021-10-29 05:29:57,298 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-29 05:29:57,300 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:29:57,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:29:57 BoogieIcfgContainer [2021-10-29 05:29:57,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:29:57,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:29:57,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:29:57,319 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:29:57,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:27:45" (3/4) ... [2021-10-29 05:29:57,321 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:29:57,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:29:57,323 INFO L168 Benchmark]: Toolchain (without parser) took 176654.88 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 39.4 MB in the beginning and 50.6 MB in the end (delta: -11.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:57,323 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 60.8 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:29:57,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.01 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 39.3 MB in the beginning and 60.2 MB in the end (delta: -20.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:57,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.49 ms. Allocated memory is still 86.0 MB. Free memory was 60.2 MB in the beginning and 55.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:57,325 INFO L168 Benchmark]: Boogie Preprocessor took 152.71 ms. Allocated memory is still 86.0 MB. Free memory was 55.5 MB in the beginning and 50.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:57,326 INFO L168 Benchmark]: RCFGBuilder took 44411.18 ms. Allocated memory is still 86.0 MB. Free memory was 50.6 MB in the beginning and 61.6 MB in the end (delta: -11.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:57,327 INFO L168 Benchmark]: TraceAbstraction took 131398.41 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 50.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:57,327 INFO L168 Benchmark]: Witness Printer took 3.41 ms. Allocated memory is still 86.0 MB. Free memory is still 50.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:29:57,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 60.8 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 564.01 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 39.3 MB in the beginning and 60.2 MB in the end (delta: -20.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.49 ms. Allocated memory is still 86.0 MB. Free memory was 60.2 MB in the beginning and 55.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 152.71 ms. Allocated memory is still 86.0 MB. Free memory was 55.5 MB in the beginning and 50.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 44411.18 ms. Allocated memory is still 86.0 MB. Free memory was 50.6 MB in the beginning and 61.6 MB in the end (delta: -11.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 131398.41 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 50.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.41 ms. Allocated memory is still 86.0 MB. Free memory is still 50.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 578]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L40-L42] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L95] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L222-L261] static const double bp_pow[] = { 1.0, 1.5, }, dp_h_pow[] = { 0.0, 5.84962487220764160156e-01, }, dp_l_pow[] = { 0.0, 1.35003920212974897128e-08, }, zero_pow = 0.0, one_pow = 1.0, two_pow = 2.0, two53_pow = 9007199254740992.0, huge_pow = 1.0e300, tiny_pow = 1.0e-300, L1_pow = 5.99999999999994648725e-01, L2_pow = 4.28571428578550184252e-01, L3_pow = 3.33333329818377432918e-01, L4_pow = 2.72728123808534006489e-01, L5_pow = 2.30660745775561754067e-01, L6_pow = 2.06975017800338417784e-01, P1_pow = 1.66666666666666019037e-01, P2_pow = -2.77777777770155933842e-03, P3_pow = 6.61375632143793436117e-05, P4_pow = -1.65339022054652515390e-06, P5_pow = 4.13813679705723846039e-08, lg2_pow = 6.93147180559945286227e-01, lg2_h_pow = 6.93147182464599609375e-01, lg2_l_pow = -1.90465429995776804525e-09, ovt_pow = 8.0085662595372944372e-0017, cp_pow = 9.61796693925975554329e-01, cp_h_pow = 9.61796700954437255859e-01, cp_l_pow = -7.02846165095275826516e-09, ivln2_pow = 1.44269504088896338700e+00, ivln2_h_pow = 1.44269502162933349609e+00, ivln2_l_pow = 1.92596299112661746887e-08; [L571] double x = -1.0; [L572] double y = 1.0 / 0.0; [L264] double z, ax, z_h, z_l, p_h, p_l; [L265] double y1, t1, t2, r, s, t, u, v, w; [L266] __int32_t i, j, k, yisint, n; [L267] __int32_t hx, hy, ix, iy; [L268] __uint32_t lx, ly; [L271] ieee_double_shape_type ew_u; [L272] ew_u.value = (x) [L273] EXPR ew_u.parts.msw [L273] (hx) = ew_u.parts.msw [L274] EXPR ew_u.parts.lsw [L274] (lx) = ew_u.parts.lsw [L277] ieee_double_shape_type ew_u; [L278] ew_u.value = (y) [L279] EXPR ew_u.parts.msw [L279] (hy) = ew_u.parts.msw [L280] EXPR ew_u.parts.lsw [L280] (ly) = ew_u.parts.lsw [L282] ix = hx & 0x7fffffff [L283] iy = hy & 0x7fffffff [L285] COND FALSE !((iy | ly) == 0) [L288-L289] COND TRUE ix > 0x7ff00000 || ((ix == 0x7ff00000) && (lx != 0)) || iy > 0x7ff00000 || ((iy == 0x7ff00000) && (ly != 0)) [L290] COND FALSE !(((ix - 0x3ff00000) | lx) == 0) [L293] return __builtin_nan(""); [L574] double res = __ieee754_pow(x, y); [L577] COND TRUE res != 1.0 [L578] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 210 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 131.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 103.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 590 SDtfs, 274 SDslu, 901 SDs, 0 SdLazy, 90 SolverSat, 12 SolverUnsat, 36 SolverUnknown, 0 SolverNotchecked, 99.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 20.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 19 QuantifiedInterpolants, 622 SizeOfPredicates, 28 NumberOfNonLiveVariables, 458 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:29:57,543 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 05:29:57,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6df9fd-8037-46fe-98f7-b25d4dc1bdf8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...