./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5678568630a4199d94fed33c5301bef19d60be ................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5678568630a4199d94fed33c5301bef19d60be ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 15:49:50,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 15:49:50,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 15:49:50,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 15:49:50,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 15:49:50,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 15:49:50,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 15:49:50,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 15:49:50,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 15:49:50,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 15:49:50,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 15:49:50,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 15:49:50,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 15:49:50,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 15:49:50,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 15:49:50,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 15:49:50,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 15:49:50,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 15:49:50,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 15:49:50,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 15:49:50,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 15:49:50,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 15:49:50,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 15:49:50,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 15:49:50,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 15:49:50,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 15:49:50,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 15:49:50,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 15:49:50,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 15:49:50,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 15:49:50,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 15:49:50,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 15:49:50,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 15:49:50,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 15:49:50,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 15:49:50,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 15:49:50,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 15:49:50,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 15:49:50,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 15:49:50,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 15:49:50,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 15:49:50,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 15:49:50,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 15:49:50,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 15:49:50,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 15:49:50,269 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 15:49:50,270 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 15:49:50,270 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 15:49:50,270 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 15:49:50,270 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 15:49:50,270 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 15:49:50,270 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 15:49:50,270 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 15:49:50,270 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 15:49:50,270 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 15:49:50,271 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 15:49:50,271 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 15:49:50,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 15:49:50,271 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 15:49:50,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 15:49:50,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 15:49:50,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 15:49:50,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 15:49:50,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 15:49:50,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 15:49:50,272 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 15:49:50,272 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 15:49:50,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 15:49:50,272 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 15:49:50,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 15:49:50,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 15:49:50,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 15:49:50,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:49:50,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 15:49:50,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 15:49:50,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 15:49:50,273 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 15:49:50,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 15:49:50,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 15:49:50,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 15:49:50,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 15:49:50,274 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5678568630a4199d94fed33c5301bef19d60be [2020-12-09 15:49:50,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 15:49:50,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 15:49:50,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 15:49:50,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 15:49:50,474 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 15:49:50,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2020-12-09 15:49:50,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data/6bf33ffc2/061d4fb5514a4b4baada2917d2f9fb9e/FLAG9f1ebebb6 [2020-12-09 15:49:50,928 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 15:49:50,929 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2020-12-09 15:49:50,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data/6bf33ffc2/061d4fb5514a4b4baada2917d2f9fb9e/FLAG9f1ebebb6 [2020-12-09 15:49:50,948 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data/6bf33ffc2/061d4fb5514a4b4baada2917d2f9fb9e [2020-12-09 15:49:50,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 15:49:50,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 15:49:50,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 15:49:50,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 15:49:50,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 15:49:50,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:49:50" (1/1) ... [2020-12-09 15:49:50,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d56203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:50, skipping insertion in model container [2020-12-09 15:49:50,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:49:50" (1/1) ... [2020-12-09 15:49:50,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 15:49:50,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 15:49:51,272 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1710) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2343) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:706) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2343) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1409) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1353) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1046) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1424) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 15:49:51,275 INFO L168 Benchmark]: Toolchain (without parser) took 323.70 ms. Allocated memory is still 88.1 MB. Free memory was 46.1 MB in the beginning and 55.9 MB in the end (delta: -9.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:49:51,276 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 88.1 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 115.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:49:51,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.71 ms. Allocated memory is still 88.1 MB. Free memory was 67.5 MB in the beginning and 55.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 15:49:51,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 88.1 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 115.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.71 ms. Allocated memory is still 88.1 MB. Free memory was 67.5 MB in the beginning and 55.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 15:49:52,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 15:49:52,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 15:49:52,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 15:49:52,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 15:49:52,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 15:49:52,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 15:49:52,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 15:49:52,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 15:49:52,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 15:49:52,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 15:49:52,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 15:49:52,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 15:49:52,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 15:49:52,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 15:49:52,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 15:49:52,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 15:49:52,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 15:49:52,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 15:49:52,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 15:49:52,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 15:49:52,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 15:49:52,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 15:49:52,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 15:49:52,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 15:49:52,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 15:49:52,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 15:49:52,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 15:49:52,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 15:49:52,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 15:49:52,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 15:49:52,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 15:49:52,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 15:49:52,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 15:49:52,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 15:49:52,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 15:49:52,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 15:49:52,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 15:49:52,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 15:49:52,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 15:49:52,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 15:49:52,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 15:49:52,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 15:49:52,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 15:49:52,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 15:49:52,676 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 15:49:52,677 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 15:49:52,677 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 15:49:52,677 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 15:49:52,677 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 15:49:52,677 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 15:49:52,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 15:49:52,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 15:49:52,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 15:49:52,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 15:49:52,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 15:49:52,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 15:49:52,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 15:49:52,679 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 15:49:52,679 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 15:49:52,679 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 15:49:52,679 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 15:49:52,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 15:49:52,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 15:49:52,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 15:49:52,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 15:49:52,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 15:49:52,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 15:49:52,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:49:52,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 15:49:52,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 15:49:52,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 15:49:52,680 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 15:49:52,680 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 15:49:52,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 15:49:52,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 15:49:52,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 15:49:52,681 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5678568630a4199d94fed33c5301bef19d60be [2020-12-09 15:49:52,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 15:49:52,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 15:49:52,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 15:49:52,919 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 15:49:52,919 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 15:49:52,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2020-12-09 15:49:52,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data/74409d271/b5131517e4434462980ada983ca7aca8/FLAG84b36d5f9 [2020-12-09 15:49:53,415 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 15:49:53,415 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2020-12-09 15:49:53,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data/74409d271/b5131517e4434462980ada983ca7aca8/FLAG84b36d5f9 [2020-12-09 15:49:53,437 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/data/74409d271/b5131517e4434462980ada983ca7aca8 [2020-12-09 15:49:53,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 15:49:53,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 15:49:53,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 15:49:53,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 15:49:53,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 15:49:53,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:49:53" (1/1) ... [2020-12-09 15:49:53,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@299f09a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:53, skipping insertion in model container [2020-12-09 15:49:53,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:49:53" (1/1) ... [2020-12-09 15:49:53,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 15:49:53,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 15:49:53,779 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41149,41162] [2020-12-09 15:49:53,788 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41296,41309] [2020-12-09 15:49:53,790 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41445,41458] [2020-12-09 15:49:53,794 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41846,41859] [2020-12-09 15:49:53,795 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41993,42006] [2020-12-09 15:49:53,799 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42394,42407] [2020-12-09 15:49:53,800 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42541,42554] [2020-12-09 15:49:53,801 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42582,42595] [2020-12-09 15:49:53,804 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42965,42978] [2020-12-09 15:49:53,805 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43112,43125] [2020-12-09 15:49:53,809 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43610,43623] [2020-12-09 15:49:53,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:49:53,821 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 15:49:53,850 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41149,41162] [2020-12-09 15:49:53,852 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41296,41309] [2020-12-09 15:49:53,853 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41445,41458] [2020-12-09 15:49:53,856 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41846,41859] [2020-12-09 15:49:53,857 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41993,42006] [2020-12-09 15:49:53,859 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42394,42407] [2020-12-09 15:49:53,860 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42541,42554] [2020-12-09 15:49:53,861 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42582,42595] [2020-12-09 15:49:53,862 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42965,42978] [2020-12-09 15:49:53,863 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43112,43125] [2020-12-09 15:49:53,865 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43610,43623] [2020-12-09 15:49:53,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:49:54,083 INFO L208 MainTranslator]: Completed translation [2020-12-09 15:49:54,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54 WrapperNode [2020-12-09 15:49:54,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 15:49:54,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 15:49:54,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 15:49:54,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 15:49:54,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... [2020-12-09 15:49:54,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... [2020-12-09 15:49:54,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 15:49:54,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 15:49:54,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 15:49:54,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 15:49:54,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... [2020-12-09 15:49:54,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... [2020-12-09 15:49:54,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... [2020-12-09 15:49:54,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... [2020-12-09 15:49:54,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... [2020-12-09 15:49:54,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... [2020-12-09 15:49:54,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... [2020-12-09 15:49:54,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 15:49:54,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 15:49:54,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 15:49:54,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 15:49:54,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:49:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 15:49:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 15:49:54,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 15:49:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 15:49:54,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 15:49:54,422 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 15:49:54,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:49:54 BoogieIcfgContainer [2020-12-09 15:49:54,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 15:49:54,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 15:49:54,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 15:49:54,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 15:49:54,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:49:53" (1/3) ... [2020-12-09 15:49:54,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42965bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:49:54, skipping insertion in model container [2020-12-09 15:49:54,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:49:54" (2/3) ... [2020-12-09 15:49:54,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42965bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:49:54, skipping insertion in model container [2020-12-09 15:49:54,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:49:54" (3/3) ... [2020-12-09 15:49:54,431 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp4.i [2020-12-09 15:49:54,443 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 15:49:54,446 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-12-09 15:49:54,456 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-12-09 15:49:54,479 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 15:49:54,479 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 15:49:54,479 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 15:49:54,479 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 15:49:54,479 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 15:49:54,479 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 15:49:54,479 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 15:49:54,479 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 15:49:54,494 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-12-09 15:49:54,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 15:49:54,499 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:49:54,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 15:49:54,500 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:49:54,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:49:54,505 INFO L82 PathProgramCache]: Analyzing trace with hash 28693891, now seen corresponding path program 1 times [2020-12-09 15:49:54,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:49:54,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350446101] [2020-12-09 15:49:54,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 15:49:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:49:54,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 15:49:54,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:49:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:49:54,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:49:54,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350446101] [2020-12-09 15:49:54,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:49:54,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 15:49:54,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923919440] [2020-12-09 15:49:54,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 15:49:54,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:49:54,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 15:49:54,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 15:49:54,616 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2020-12-09 15:49:54,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:49:54,631 INFO L93 Difference]: Finished difference Result 91 states and 120 transitions. [2020-12-09 15:49:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 15:49:54,633 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-12-09 15:49:54,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:49:54,640 INFO L225 Difference]: With dead ends: 91 [2020-12-09 15:49:54,640 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 15:49:54,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 15:49:54,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 15:49:54,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-09 15:49:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 15:49:54,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2020-12-09 15:49:54,667 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 5 [2020-12-09 15:49:54,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:49:54,667 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2020-12-09 15:49:54,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 15:49:54,667 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2020-12-09 15:49:54,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 15:49:54,668 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:49:54,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 15:49:54,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 15:49:54,869 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:49:54,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:49:54,870 INFO L82 PathProgramCache]: Analyzing trace with hash 28695813, now seen corresponding path program 1 times [2020-12-09 15:49:54,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:49:54,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82383408] [2020-12-09 15:49:54,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 15:49:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:49:54,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 15:49:54,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:49:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:49:55,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:49:55,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82383408] [2020-12-09 15:49:55,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:49:55,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:49:55,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938445454] [2020-12-09 15:49:55,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:49:55,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:49:55,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:49:55,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:49:55,095 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 4 states. [2020-12-09 15:49:55,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:49:55,151 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-12-09 15:49:55,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:49:55,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 15:49:55,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:49:55,158 INFO L225 Difference]: With dead ends: 44 [2020-12-09 15:49:55,158 INFO L226 Difference]: Without dead ends: 38 [2020-12-09 15:49:55,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:49:55,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-09 15:49:55,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-09 15:49:55,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-09 15:49:55,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 37 transitions. [2020-12-09 15:49:55,164 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 37 transitions. Word has length 5 [2020-12-09 15:49:55,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:49:55,164 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 37 transitions. [2020-12-09 15:49:55,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:49:55,164 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-12-09 15:49:55,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 15:49:55,165 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:49:55,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:49:55,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 15:49:55,366 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:49:55,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:49:55,367 INFO L82 PathProgramCache]: Analyzing trace with hash -686348615, now seen corresponding path program 1 times [2020-12-09 15:49:55,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:49:55,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478709010] [2020-12-09 15:49:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 15:49:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:49:55,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 15:49:55,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:49:55,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:49:55,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:49:55,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478709010] [2020-12-09 15:49:55,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:49:55,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:49:55,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820148817] [2020-12-09 15:49:55,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:49:55,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:49:55,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:49:55,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:49:55,573 INFO L87 Difference]: Start difference. First operand 38 states and 37 transitions. Second operand 4 states. [2020-12-09 15:49:55,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:49:55,656 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-12-09 15:49:55,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:49:55,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-09 15:49:55,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:49:55,657 INFO L225 Difference]: With dead ends: 38 [2020-12-09 15:49:55,657 INFO L226 Difference]: Without dead ends: 34 [2020-12-09 15:49:55,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:49:55,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-09 15:49:55,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-09 15:49:55,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-09 15:49:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2020-12-09 15:49:55,661 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 10 [2020-12-09 15:49:55,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:49:55,661 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2020-12-09 15:49:55,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:49:55,661 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2020-12-09 15:49:55,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 15:49:55,661 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:49:55,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:49:55,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 15:49:55,864 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:49:55,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:49:55,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1664358106, now seen corresponding path program 1 times [2020-12-09 15:49:55,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:49:55,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881814281] [2020-12-09 15:49:55,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 15:49:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:49:56,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 15:49:56,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:49:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:49:56,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:49:56,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881814281] [2020-12-09 15:49:56,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:49:56,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:49:56,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622428341] [2020-12-09 15:49:56,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:49:56,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:49:56,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:49:56,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:49:56,056 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 4 states. [2020-12-09 15:49:56,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:49:56,119 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2020-12-09 15:49:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:49:56,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-09 15:49:56,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:49:56,120 INFO L225 Difference]: With dead ends: 34 [2020-12-09 15:49:56,120 INFO L226 Difference]: Without dead ends: 28 [2020-12-09 15:49:56,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:49:56,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-09 15:49:56,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-09 15:49:56,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-09 15:49:56,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2020-12-09 15:49:56,124 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 14 [2020-12-09 15:49:56,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:49:56,125 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2020-12-09 15:49:56,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:49:56,125 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2020-12-09 15:49:56,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 15:49:56,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:49:56,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:49:56,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 15:49:56,326 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:49:56,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:49:56,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1867176430, now seen corresponding path program 1 times [2020-12-09 15:49:56,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:49:56,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963673219] [2020-12-09 15:49:56,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 15:49:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:49:56,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 15:49:56,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:49:56,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:49:56,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:49:56,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963673219] [2020-12-09 15:49:56,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:49:56,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:49:56,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211872079] [2020-12-09 15:49:56,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:49:56,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:49:56,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:49:56,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:49:56,438 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 4 states. [2020-12-09 15:49:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:49:56,510 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2020-12-09 15:49:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:49:56,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-12-09 15:49:56,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:49:56,511 INFO L225 Difference]: With dead ends: 28 [2020-12-09 15:49:56,511 INFO L226 Difference]: Without dead ends: 24 [2020-12-09 15:49:56,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:49:56,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-09 15:49:56,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-09 15:49:56,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-09 15:49:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2020-12-09 15:49:56,514 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 19 [2020-12-09 15:49:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:49:56,514 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2020-12-09 15:49:56,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:49:56,515 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-12-09 15:49:56,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 15:49:56,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:49:56,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:49:56,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 15:49:56,717 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:49:56,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:49:56,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1057859749, now seen corresponding path program 1 times [2020-12-09 15:49:56,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:49:56,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806156064] [2020-12-09 15:49:56,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 15:49:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:49:56,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 15:49:56,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:49:56,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:49:56,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:49:56,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806156064] [2020-12-09 15:49:56,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:49:56,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:49:56,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891639700] [2020-12-09 15:49:56,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:49:56,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:49:56,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:49:56,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:49:56,889 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 4 states. [2020-12-09 15:49:56,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:49:56,938 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-12-09 15:49:56,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 15:49:56,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-12-09 15:49:56,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:49:56,939 INFO L225 Difference]: With dead ends: 24 [2020-12-09 15:49:56,939 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 15:49:56,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:49:56,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 15:49:56,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 15:49:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 15:49:56,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 15:49:56,940 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2020-12-09 15:49:56,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:49:56,940 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 15:49:56,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:49:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 15:49:56,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 15:49:57,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 15:49:57,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 15:49:57,154 INFO L262 CegarLoopResult]: For program point L2-1(line 981) no Hoare annotation was computed. [2020-12-09 15:49:57,154 INFO L262 CegarLoopResult]: For program point L2-2(line 988) no Hoare annotation was computed. [2020-12-09 15:49:57,155 INFO L262 CegarLoopResult]: For program point L2-3(line 997) no Hoare annotation was computed. [2020-12-09 15:49:57,155 INFO L262 CegarLoopResult]: For program point L2-4(line 1004) no Hoare annotation was computed. [2020-12-09 15:49:57,155 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 998) no Hoare annotation was computed. [2020-12-09 15:49:57,156 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2020-12-09 15:49:57,156 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-09 15:49:57,156 INFO L262 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-12-09 15:49:57,157 INFO L262 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-12-09 15:49:57,157 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 982) no Hoare annotation was computed. [2020-12-09 15:49:57,157 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 15:49:57,157 INFO L262 CegarLoopResult]: For program point L3-6(line 3) no Hoare annotation was computed. [2020-12-09 15:49:57,158 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 15:49:57,158 INFO L262 CegarLoopResult]: For program point L3-8(line 3) no Hoare annotation was computed. [2020-12-09 15:49:57,158 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 981) no Hoare annotation was computed. [2020-12-09 15:49:57,159 INFO L262 CegarLoopResult]: For program point L1004(line 1004) no Hoare annotation was computed. [2020-12-09 15:49:57,159 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 989) no Hoare annotation was computed. [2020-12-09 15:49:57,159 INFO L262 CegarLoopResult]: For program point L988(line 988) no Hoare annotation was computed. [2020-12-09 15:49:57,159 INFO L262 CegarLoopResult]: For program point L988-2(lines 968 1005) no Hoare annotation was computed. [2020-12-09 15:49:57,160 INFO L262 CegarLoopResult]: For program point L997(line 997) no Hoare annotation was computed. [2020-12-09 15:49:57,160 INFO L262 CegarLoopResult]: For program point L997-2(lines 968 1005) no Hoare annotation was computed. [2020-12-09 15:49:57,160 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 988) no Hoare annotation was computed. [2020-12-09 15:49:57,161 INFO L262 CegarLoopResult]: For program point L989(line 989) no Hoare annotation was computed. [2020-12-09 15:49:57,161 INFO L262 CegarLoopResult]: For program point L989-2(lines 968 1005) no Hoare annotation was computed. [2020-12-09 15:49:57,161 INFO L262 CegarLoopResult]: For program point L981(line 981) no Hoare annotation was computed. [2020-12-09 15:49:57,161 INFO L262 CegarLoopResult]: For program point L981-2(lines 968 1005) no Hoare annotation was computed. [2020-12-09 15:49:57,162 INFO L262 CegarLoopResult]: For program point L973(line 973) no Hoare annotation was computed. [2020-12-09 15:49:57,162 INFO L262 CegarLoopResult]: For program point L973-2(lines 968 1005) no Hoare annotation was computed. [2020-12-09 15:49:57,162 INFO L262 CegarLoopResult]: For program point L998(line 998) no Hoare annotation was computed. [2020-12-09 15:49:57,162 INFO L262 CegarLoopResult]: For program point L998-2(line 998) no Hoare annotation was computed. [2020-12-09 15:49:57,163 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 15:49:57,163 INFO L262 CegarLoopResult]: For program point L990(line 990) no Hoare annotation was computed. [2020-12-09 15:49:57,163 INFO L262 CegarLoopResult]: For program point L990-2(line 990) no Hoare annotation was computed. [2020-12-09 15:49:57,164 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2020-12-09 15:49:57,164 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 973) no Hoare annotation was computed. [2020-12-09 15:49:57,164 INFO L262 CegarLoopResult]: For program point L982(line 982) no Hoare annotation was computed. [2020-12-09 15:49:57,165 INFO L262 CegarLoopResult]: For program point L982-2(line 982) no Hoare annotation was computed. [2020-12-09 15:49:57,165 INFO L262 CegarLoopResult]: For program point L974(line 974) no Hoare annotation was computed. [2020-12-09 15:49:57,165 INFO L262 CegarLoopResult]: For program point L974-2(lines 968 1005) no Hoare annotation was computed. [2020-12-09 15:49:57,165 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 15:49:57,166 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2020-12-09 15:49:57,166 INFO L262 CegarLoopResult]: For program point L975(line 975) no Hoare annotation was computed. [2020-12-09 15:49:57,166 INFO L262 CegarLoopResult]: For program point L975-2(line 975) no Hoare annotation was computed. [2020-12-09 15:49:57,166 INFO L262 CegarLoopResult]: For program point L967(lines 967 1005) no Hoare annotation was computed. [2020-12-09 15:49:57,167 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 1004) no Hoare annotation was computed. [2020-12-09 15:49:57,167 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2020-12-09 15:49:57,167 INFO L262 CegarLoopResult]: For program point L2(line 973) no Hoare annotation was computed. [2020-12-09 15:49:57,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:49:57 BoogieIcfgContainer [2020-12-09 15:49:57,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 15:49:57,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 15:49:57,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 15:49:57,180 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 15:49:57,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:49:54" (3/4) ... [2020-12-09 15:49:57,185 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 15:49:57,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-09 15:49:57,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 15:49:57,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 15:49:57,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 15:49:57,231 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1cbb4c47-a7de-4aed-a743-c86e861e876c/bin/utaipan/witness.graphml [2020-12-09 15:49:57,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 15:49:57,232 INFO L168 Benchmark]: Toolchain (without parser) took 3791.92 ms. Allocated memory was 65.0 MB in the beginning and 111.1 MB in the end (delta: 46.1 MB). Free memory was 46.5 MB in the beginning and 40.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 51.8 MB. Max. memory is 16.1 GB. [2020-12-09 15:49:57,232 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 65.0 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:49:57,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.60 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 46.4 MB in the beginning and 59.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 50.2 MB. Max. memory is 16.1 GB. [2020-12-09 15:49:57,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.68 ms. Allocated memory is still 92.3 MB. Free memory was 59.4 MB in the beginning and 56.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 15:49:57,233 INFO L168 Benchmark]: Boogie Preprocessor took 22.43 ms. Allocated memory is still 92.3 MB. Free memory was 56.5 MB in the beginning and 55.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:49:57,234 INFO L168 Benchmark]: RCFGBuilder took 268.29 ms. Allocated memory is still 92.3 MB. Free memory was 55.2 MB in the beginning and 36.8 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 15:49:57,234 INFO L168 Benchmark]: TraceAbstraction took 2753.88 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 36.4 MB in the beginning and 44.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:49:57,234 INFO L168 Benchmark]: Witness Printer took 51.10 ms. Allocated memory is still 111.1 MB. Free memory was 44.3 MB in the beginning and 40.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 15:49:57,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 65.0 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 643.60 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 46.4 MB in the beginning and 59.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 50.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.68 ms. Allocated memory is still 92.3 MB. Free memory was 59.4 MB in the beginning and 56.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.43 ms. Allocated memory is still 92.3 MB. Free memory was 56.5 MB in the beginning and 55.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 268.29 ms. Allocated memory is still 92.3 MB. Free memory was 55.2 MB in the beginning and 36.8 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2753.88 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 36.4 MB in the beginning and 44.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Witness Printer took 51.10 ms. Allocated memory is still 111.1 MB. Free memory was 44.3 MB in the beginning and 40.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 974]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 982]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 990]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 988]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 989]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1004]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 981]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 973]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 975]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 998]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 95 SDslu, 128 SDs, 0 SdLazy, 64 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2654 SizeOfPredicates, 15 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...