./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF --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 b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:35:59,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:35:59,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:35:59,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:35:59,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:35:59,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:35:59,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:35:59,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:35:59,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:35:59,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:35:59,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:35:59,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:35:59,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:35:59,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:35:59,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:35:59,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:35:59,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:35:59,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:35:59,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:35:59,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:35:59,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:35:59,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:35:59,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:35:59,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:35:59,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:35:59,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:35:59,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:35:59,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:35:59,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:35:59,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:35:59,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:35:59,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:35:59,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:35:59,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:35:59,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:35:59,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:35:59,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:35:59,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:35:59,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:35:59,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:35:59,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:35:59,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:35:59,228 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:35:59,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:35:59,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:35:59,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:35:59,230 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:35:59,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:35:59,230 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:35:59,230 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:35:59,231 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:35:59,231 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:35:59,231 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:35:59,232 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:35:59,232 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:35:59,232 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:35:59,232 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:35:59,233 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:35:59,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:35:59,234 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:35:59,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:35:59,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:35:59,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:35:59,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:35:59,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:35:59,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:35:59,236 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:35:59,236 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:35:59,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:35:59,236 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:35:59,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:35:59,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:35:59,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:35:59,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:35:59,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:35:59,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:35:59,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:35:59,239 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:35:59,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:35:59,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:35:59,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:35:59,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:35:59,240 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f [2021-11-13 01:35:59,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:35:59,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:35:59,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:35:59,575 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:35:59,575 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:35:59,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-11-13 01:35:59,665 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data/a8a57ac29/a46fae30944c45d6bc1a52d25bbeb01b/FLAG1302889e1 [2021-11-13 01:36:00,336 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:36:00,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-11-13 01:36:00,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data/a8a57ac29/a46fae30944c45d6bc1a52d25bbeb01b/FLAG1302889e1 [2021-11-13 01:36:00,553 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data/a8a57ac29/a46fae30944c45d6bc1a52d25bbeb01b [2021-11-13 01:36:00,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:36:00,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:36:00,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:36:00,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:36:00,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:36:00,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:36:00" (1/1) ... [2021-11-13 01:36:00,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7341aad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:00, skipping insertion in model container [2021-11-13 01:36:00,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:36:00" (1/1) ... [2021-11-13 01:36:00,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:36:00,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:36:01,448 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:1759) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) 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:1103) 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:2378) 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:728) 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:2378) 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:2378) 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:1598) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) 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:1452) 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:3254) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2328) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 01:36:01,452 INFO L158 Benchmark]: Toolchain (without parser) took 892.91ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 87.0MB in the end (delta: -10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:36:01,453 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory was 83.8MB in the beginning and 83.8MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:36:01,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 888.38ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 87.0MB in the end (delta: -10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:36:01,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory was 83.8MB in the beginning and 83.8MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 888.38ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 87.0MB in the end (delta: -10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF --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 b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:36:03,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:36:03,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:36:03,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:36:03,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:36:03,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:36:03,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:36:03,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:36:04,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:36:04,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:36:04,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:36:04,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:36:04,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:36:04,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:36:04,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:36:04,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:36:04,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:36:04,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:36:04,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:36:04,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:36:04,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:36:04,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:36:04,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:36:04,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:36:04,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:36:04,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:36:04,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:36:04,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:36:04,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:36:04,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:36:04,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:36:04,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:36:04,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:36:04,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:36:04,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:36:04,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:36:04,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:36:04,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:36:04,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:36:04,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:36:04,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:36:04,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:36:04,097 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:36:04,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:36:04,098 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:36:04,099 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:36:04,099 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:36:04,099 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:36:04,099 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:36:04,100 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:36:04,100 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:36:04,100 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:36:04,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:36:04,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:36:04,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:36:04,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:36:04,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:36:04,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:36:04,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:36:04,103 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:36:04,103 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:36:04,103 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:36:04,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:36:04,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:36:04,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:36:04,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:36:04,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:36:04,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:36:04,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:36:04,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:36:04,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:36:04,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:36:04,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:36:04,109 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:36:04,109 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:36:04,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:36:04,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:36:04,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:36:04,110 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f [2021-11-13 01:36:04,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:36:04,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:36:04,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:36:04,546 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:36:04,547 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:36:04,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-11-13 01:36:04,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data/efbd6e066/9c4bb742165d4f7a92a9f53127d062b4/FLAG776119b7d [2021-11-13 01:36:05,427 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:36:05,428 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-11-13 01:36:05,446 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data/efbd6e066/9c4bb742165d4f7a92a9f53127d062b4/FLAG776119b7d [2021-11-13 01:36:05,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/data/efbd6e066/9c4bb742165d4f7a92a9f53127d062b4 [2021-11-13 01:36:05,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:36:05,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:36:05,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:36:05,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:36:05,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:36:05,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:36:05" (1/1) ... [2021-11-13 01:36:05,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2adbfe07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:05, skipping insertion in model container [2021-11-13 01:36:05,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:36:05" (1/1) ... [2021-11-13 01:36:05,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:36:05,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:36:06,416 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2021-11-13 01:36:06,430 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2021-11-13 01:36:06,433 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2021-11-13 01:36:06,436 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2021-11-13 01:36:06,437 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2021-11-13 01:36:06,439 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2021-11-13 01:36:06,440 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2021-11-13 01:36:06,440 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2021-11-13 01:36:06,441 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2021-11-13 01:36:06,442 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2021-11-13 01:36:06,444 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2021-11-13 01:36:06,445 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2021-11-13 01:36:06,448 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2021-11-13 01:36:06,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:36:06,465 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:36:06,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2021-11-13 01:36:06,509 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2021-11-13 01:36:06,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2021-11-13 01:36:06,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2021-11-13 01:36:06,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2021-11-13 01:36:06,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2021-11-13 01:36:06,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2021-11-13 01:36:06,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2021-11-13 01:36:06,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2021-11-13 01:36:06,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2021-11-13 01:36:06,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2021-11-13 01:36:06,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2021-11-13 01:36:06,524 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2021-11-13 01:36:06,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:36:06,670 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:36:06,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06 WrapperNode [2021-11-13 01:36:06,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:36:06,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:36:06,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:36:06,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:36:06,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:36:06,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:36:06,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:36:06,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:36:06,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:36:06,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:36:06,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:36:06,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:36:06,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (1/1) ... [2021-11-13 01:36:06,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:36:06,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:36:06,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:36:06,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:36:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:36:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:36:06,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:36:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 01:36:06,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 01:36:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:36:15,455 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:36:15,456 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 01:36:15,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:36:15 BoogieIcfgContainer [2021-11-13 01:36:15,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:36:15,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:36:15,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:36:15,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:36:15,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:36:05" (1/3) ... [2021-11-13 01:36:15,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c27267f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:36:15, skipping insertion in model container [2021-11-13 01:36:15,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:06" (2/3) ... [2021-11-13 01:36:15,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c27267f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:36:15, skipping insertion in model container [2021-11-13 01:36:15,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:36:15" (3/3) ... [2021-11-13 01:36:15,468 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2021-11-13 01:36:15,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:36:15,474 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-13 01:36:15,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:36:15,540 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:36:15,540 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-13 01:36:15,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 50 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:36:15,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 01:36:15,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:15,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 01:36:15,565 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:36:15,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-13 01:36:15,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:15,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626961752] [2021-11-13 01:36:15,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:15,586 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:15,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:15,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:15,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:36:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:15,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:36:15,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:36:15,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:36:15,926 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:15,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [626961752] [2021-11-13 01:36:15,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [626961752] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:15,929 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:15,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:36:15,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129113533] [2021-11-13 01:36:15,933 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:15,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:36:15,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:15,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:36:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:36:15,980 INFO L87 Difference]: Start difference. First operand has 55 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 50 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:36:20,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:36:22,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:36:22,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:22,278 INFO L93 Difference]: Finished difference Result 105 states and 137 transitions. [2021-11-13 01:36:22,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:36:22,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 01:36:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:22,311 INFO L225 Difference]: With dead ends: 105 [2021-11-13 01:36:22,311 INFO L226 Difference]: Without dead ends: 49 [2021-11-13 01:36:22,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:36:22,318 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6172.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 6246.88ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:22,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 13 Unknown, 0 Unchecked, 4.62ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 2 Unknown, 1 Unchecked, 6246.88ms Time] [2021-11-13 01:36:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-13 01:36:22,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-11-13 01:36:22,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 44 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:36:22,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2021-11-13 01:36:22,365 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 4 [2021-11-13 01:36:22,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:22,365 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2021-11-13 01:36:22,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:36:22,366 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2021-11-13 01:36:22,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 01:36:22,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:22,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:22,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:22,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:22,578 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:36:22,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:22,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1079818240, now seen corresponding path program 1 times [2021-11-13 01:36:22,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:22,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651606466] [2021-11-13 01:36:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:22,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:22,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:22,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:22,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:36:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:22,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:36:22,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:23,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:36:23,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:27,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:36:27,196 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:27,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651606466] [2021-11-13 01:36:27,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651606466] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:27,196 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:27,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-13 01:36:27,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837209870] [2021-11-13 01:36:27,197 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:27,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 01:36:27,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:27,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 01:36:27,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:36:27,201 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:36:29,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:36:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:29,377 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2021-11-13 01:36:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:36:29,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 11 [2021-11-13 01:36:29,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:29,392 INFO L225 Difference]: With dead ends: 49 [2021-11-13 01:36:29,392 INFO L226 Difference]: Without dead ends: 47 [2021-11-13 01:36:29,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:36:29,395 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2105.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 2132.69ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:29,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 171 Invalid, 37 Unknown, 0 Unchecked, 2.98ms Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 20 Unchecked, 2132.69ms Time] [2021-11-13 01:36:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-13 01:36:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-13 01:36:29,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.3125) internal successors, (42), 42 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:36:29,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2021-11-13 01:36:29,404 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 11 [2021-11-13 01:36:29,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:29,406 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2021-11-13 01:36:29,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:36:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2021-11-13 01:36:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 01:36:29,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:29,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:29,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:29,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:29,629 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:36:29,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:29,630 INFO L85 PathProgramCache]: Analyzing trace with hash -885368843, now seen corresponding path program 1 times [2021-11-13 01:36:29,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:29,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227567987] [2021-11-13 01:36:29,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:29,632 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:29,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:29,633 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:29,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:36:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:29,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:36:29,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:36:29,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:29,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:36:29,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:29,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227567987] [2021-11-13 01:36:29,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227567987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:29,921 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:29,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:36:29,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827272264] [2021-11-13 01:36:29,922 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:29,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:36:29,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:29,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:36:29,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:36:29,924 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:36:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:29,929 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-11-13 01:36:29,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:36:29,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 12 [2021-11-13 01:36:29,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:29,934 INFO L225 Difference]: With dead ends: 47 [2021-11-13 01:36:29,934 INFO L226 Difference]: Without dead ends: 45 [2021-11-13 01:36:29,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:36:29,943 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.17ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:29,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 15 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 15 Unchecked, 0.17ms Time] [2021-11-13 01:36:29,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-13 01:36:29,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-13 01:36:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 40 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:36:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-11-13 01:36:29,963 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 12 [2021-11-13 01:36:29,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:29,964 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-11-13 01:36:29,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:36:29,965 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-11-13 01:36:29,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 01:36:29,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:29,966 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:29,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:30,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:30,183 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:36:30,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:30,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1435316947, now seen corresponding path program 1 times [2021-11-13 01:36:30,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:30,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452903074] [2021-11-13 01:36:30,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:30,185 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:30,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:30,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:30,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:36:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:30,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:36:30,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 01:36:30,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:46,985 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 01:37:46,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:46,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452903074] [2021-11-13 01:37:46,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452903074] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:37:46,986 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:37:46,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-13 01:37:46,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671164083] [2021-11-13 01:37:46,987 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:46,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 01:37:46,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:46,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 01:37:46,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:37:46,989 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:37:51,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:54,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:56,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:58,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:01,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:01,123 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-11-13 01:38:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:38:01,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2021-11-13 01:38:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:01,142 INFO L225 Difference]: With dead ends: 45 [2021-11-13 01:38:01,142 INFO L226 Difference]: Without dead ends: 41 [2021-11-13 01:38:01,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:38:01,144 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 23 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13448.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.55ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 13783.86ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:01,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 65 Invalid, 87 Unknown, 0 Unchecked, 3.55ms Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 1 Unknown, 8 Unchecked, 13783.86ms Time] [2021-11-13 01:38:01,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-13 01:38:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-13 01:38:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 36 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:38:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2021-11-13 01:38:01,152 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 19 [2021-11-13 01:38:01,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:01,152 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2021-11-13 01:38:01,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:38:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2021-11-13 01:38:01,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 01:38:01,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:01,154 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:01,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:01,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:01,363 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:38:01,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:01,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1545156500, now seen corresponding path program 1 times [2021-11-13 01:38:01,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:01,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995246566] [2021-11-13 01:38:01,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:01,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:01,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:01,366 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:01,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:38:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:01,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:38:01,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:01,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:38:01,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:38:01,695 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:01,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995246566] [2021-11-13 01:38:01,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995246566] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:38:01,696 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:38:01,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:38:01,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116265390] [2021-11-13 01:38:01,696 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:01,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:38:01,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:01,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:38:01,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:38:01,698 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:38:03,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:08,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:10,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:10,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:10,520 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2021-11-13 01:38:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:38:10,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2021-11-13 01:38:10,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:10,530 INFO L225 Difference]: With dead ends: 41 [2021-11-13 01:38:10,530 INFO L226 Difference]: Without dead ends: 39 [2021-11-13 01:38:10,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:38:10,531 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8672.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.86ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 8816.15ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:10,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 18 Unknown, 0 Unchecked, 0.86ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 3 Unknown, 5 Unchecked, 8816.15ms Time] [2021-11-13 01:38:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-13 01:38:10,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-13 01:38:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 34 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:38:10,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2021-11-13 01:38:10,538 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 20 [2021-11-13 01:38:10,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:10,539 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2021-11-13 01:38:10,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:38:10,540 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2021-11-13 01:38:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 01:38:10,541 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:10,541 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:10,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-13 01:38:10,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:10,755 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:38:10,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:10,756 INFO L85 PathProgramCache]: Analyzing trace with hash 655215355, now seen corresponding path program 1 times [2021-11-13 01:38:10,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:10,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213495775] [2021-11-13 01:38:10,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:10,757 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:10,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:10,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:10,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:38:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:10,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:38:10,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:38:11,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:18,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:38:18,597 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:18,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213495775] [2021-11-13 01:38:18,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213495775] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:38:18,597 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:38:18,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:38:18,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058836946] [2021-11-13 01:38:18,597 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:18,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:38:18,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:18,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:38:18,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:38:18,598 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:38:22,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:24,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:25,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:25,744 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2021-11-13 01:38:25,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:38:25,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2021-11-13 01:38:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:25,758 INFO L225 Difference]: With dead ends: 39 [2021-11-13 01:38:25,758 INFO L226 Difference]: Without dead ends: 35 [2021-11-13 01:38:25,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:38:25,760 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6943.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.96ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7138.57ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:25,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 25 Invalid, 26 Unknown, 0 Unchecked, 0.96ms Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 7138.57ms Time] [2021-11-13 01:38:25,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-13 01:38:25,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-13 01:38:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 30 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:38:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2021-11-13 01:38:25,766 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 21 [2021-11-13 01:38:25,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:25,766 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2021-11-13 01:38:25,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:38:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2021-11-13 01:38:25,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 01:38:25,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:25,769 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:25,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:25,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:25,982 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:38:25,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:25,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1163156356, now seen corresponding path program 1 times [2021-11-13 01:38:25,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:25,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11112855] [2021-11-13 01:38:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:25,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:25,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:25,985 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:25,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:38:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:26,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:38:26,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:38:26,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:38:30,017 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:30,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11112855] [2021-11-13 01:38:30,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11112855] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:38:30,017 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:38:30,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:38:30,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833076690] [2021-11-13 01:38:30,018 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:30,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:38:30,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:38:30,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:38:30,020 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:38:33,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:34,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:36,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:36,179 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2021-11-13 01:38:36,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:38:36,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2021-11-13 01:38:36,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:36,195 INFO L225 Difference]: With dead ends: 35 [2021-11-13 01:38:36,195 INFO L226 Difference]: Without dead ends: 33 [2021-11-13 01:38:36,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:38:36,196 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 30 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5988.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6152.17ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:36,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 22 Invalid, 20 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 6152.17ms Time] [2021-11-13 01:38:36,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-13 01:38:36,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-13 01:38:36,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.12) internal successors, (28), 28 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:38:36,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-11-13 01:38:36,203 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 22 [2021-11-13 01:38:36,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:36,203 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-11-13 01:38:36,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:38:36,204 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-11-13 01:38:36,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 01:38:36,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:36,205 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:36,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:36,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:36,406 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:38:36,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:36,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1698104541, now seen corresponding path program 1 times [2021-11-13 01:38:36,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:36,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736651128] [2021-11-13 01:38:36,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:36,408 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:36,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:36,409 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:36,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:38:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:36,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:38:36,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:36,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:38:36,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:38:39,881 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:39,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736651128] [2021-11-13 01:38:39,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736651128] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:38:39,881 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:38:39,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:38:39,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016647879] [2021-11-13 01:38:39,882 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:39,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:38:39,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:39,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:38:39,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:38:39,883 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:38:42,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:43,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:44,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:44,422 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2021-11-13 01:38:44,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:38:44,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-11-13 01:38:44,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:44,436 INFO L225 Difference]: With dead ends: 33 [2021-11-13 01:38:44,436 INFO L226 Difference]: Without dead ends: 31 [2021-11-13 01:38:44,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:38:44,437 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4379.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4533.48ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:44,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 25 Invalid, 21 Unknown, 0 Unchecked, 0.77ms Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 4533.48ms Time] [2021-11-13 01:38:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-13 01:38:44,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-13 01:38:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 26 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:38:44,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2021-11-13 01:38:44,444 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 23 [2021-11-13 01:38:44,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:44,445 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2021-11-13 01:38:44,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:38:44,445 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-11-13 01:38:44,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 01:38:44,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:44,447 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:44,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-13 01:38:44,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:44,650 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:38:44,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:44,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2103462324, now seen corresponding path program 1 times [2021-11-13 01:38:44,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:44,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805587110] [2021-11-13 01:38:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:44,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:44,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:44,652 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:44,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:38:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:45,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:38:45,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:38:45,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:51,428 WARN L838 $PredicateComparison]: unable to prove that (fp.leq (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~smallestNormalFloat~0#1|) |c_ULTIMATE.start_main_~v~0#1|) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~v~0#1| ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~largestSubnormalFloat~0#1|))) is different from false [2021-11-13 01:38:53,452 WARN L860 $PredicateComparison]: unable to prove that (fp.leq (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~smallestNormalFloat~0#1|) |c_ULTIMATE.start_main_~v~0#1|) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~v~0#1| ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~largestSubnormalFloat~0#1|))) is different from true [2021-11-13 01:39:48,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:39:48,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:39:48,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805587110] [2021-11-13 01:39:48,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805587110] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:48,092 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:48,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 01:39:48,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274598958] [2021-11-13 01:39:48,094 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:48,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:39:48,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:39:48,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:39:48,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=6, Unknown=2, NotChecked=4, Total=20 [2021-11-13 01:39:48,096 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:39:50,138 WARN L860 $PredicateComparison]: unable to prove that (and (fp.leq (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~smallestNormalFloat~0#1|) |c_ULTIMATE.start_main_~v~0#1|) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~v~0#1| ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~largestSubnormalFloat~0#1|))) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 33554431.0 2854495385411919762116571938898990272765493248.0)) |c_ULTIMATE.start_main_~v~0#1|) (= |c_ULTIMATE.start_main_~smallestNormalFloat~0#1| ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0))) (= ((_ to_fp 8 24) c_currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)) |c_ULTIMATE.start_main_~largestSubnormalFloat~0#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-13 01:39:51,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:51,452 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-11-13 01:39:51,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:39:51,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2021-11-13 01:39:51,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:51,470 INFO L225 Difference]: With dead ends: 35 [2021-11-13 01:39:51,470 INFO L226 Difference]: Without dead ends: 33 [2021-11-13 01:39:51,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=10, Invalid=7, Unknown=3, NotChecked=10, Total=30 [2021-11-13 01:39:51,471 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1297.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 1320.95ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:51,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 32 Invalid, 39 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 31 Unchecked, 1320.95ms Time] [2021-11-13 01:39:51,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-13 01:39:51,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-13 01:39:51,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:39:51,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-11-13 01:39:51,477 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 26 [2021-11-13 01:39:51,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:51,478 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-11-13 01:39:51,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:39:51,479 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-11-13 01:39:51,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 01:39:51,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:51,480 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:39:51,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 01:39:51,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:39:51,695 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:39:51,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:51,695 INFO L85 PathProgramCache]: Analyzing trace with hash -782818445, now seen corresponding path program 1 times [2021-11-13 01:39:51,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:39:51,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463311780] [2021-11-13 01:39:51,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:51,696 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:39:51,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:39:51,697 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:39:51,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:39:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:51,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:39:51,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:39:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:39:52,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:39:58,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:39:58,005 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:39:58,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463311780] [2021-11-13 01:39:58,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463311780] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:58,006 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:58,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-13 01:39:58,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767076213] [2021-11-13 01:39:58,006 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:58,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:39:58,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:39:58,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:39:58,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:39:58,008 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:40:01,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:02,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:02,478 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-11-13 01:40:02,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:40:02,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2021-11-13 01:40:02,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:02,493 INFO L225 Difference]: With dead ends: 33 [2021-11-13 01:40:02,493 INFO L226 Difference]: Without dead ends: 31 [2021-11-13 01:40:02,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:40:02,495 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4331.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.63ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4465.12ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:02,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 19 Invalid, 26 Unknown, 0 Unchecked, 0.63ms Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 4465.12ms Time] [2021-11-13 01:40:02,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-13 01:40:02,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-13 01:40:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:40:02,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-11-13 01:40:02,501 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 27 [2021-11-13 01:40:02,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:02,501 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-11-13 01:40:02,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 01:40:02,502 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-11-13 01:40:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 01:40:02,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:02,503 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:02,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-13 01:40:02,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:02,719 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-13 01:40:02,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:02,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1859738407, now seen corresponding path program 1 times [2021-11-13 01:40:02,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:02,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974652248] [2021-11-13 01:40:02,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:02,720 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:02,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:02,721 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:02,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:40:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:03,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:40:03,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:14,259 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~f~0#1| (_ FloatingPoint 8 24))) (and (fp.isSubnormal |ULTIMATE.start_main_~f~0#1|) (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~f~0#1|)) |ULTIMATE.start_main_~f~0#1|)))) is different from false [2021-11-13 01:40:16,271 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~f~0#1| (_ FloatingPoint 8 24))) (and (fp.isSubnormal |ULTIMATE.start_main_~f~0#1|) (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~f~0#1|)) |ULTIMATE.start_main_~f~0#1|)))) is different from true [2021-11-13 01:40:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 01:40:16,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:18,181 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32))) (forall ((|v_ULTIMATE.start_main_~f~0#1_BEFORE_CALL_3| (_ FloatingPoint 8 24))) (or (fp.eq ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode |v_ULTIMATE.start_main_~f~0#1_BEFORE_CALL_3|)) |v_ULTIMATE.start_main_~f~0#1_BEFORE_CALL_3|) (not (fp.isSubnormal |v_ULTIMATE.start_main_~f~0#1_BEFORE_CALL_3|))))) is different from true [2021-11-13 01:43:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 01:43:18,227 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:18,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974652248] [2021-11-13 01:43:18,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974652248] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:18,228 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:18,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 11 [2021-11-13 01:43:18,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278070385] [2021-11-13 01:43:18,228 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:18,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 01:43:18,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:18,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 01:43:18,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=50, Unknown=7, NotChecked=30, Total=110 [2021-11-13 01:43:18,230 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 01:43:20,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:21,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:29,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:31,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:33,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:35,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:37,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:51,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:53,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:54,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:57,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:59,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:00,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:02,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:05,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:06,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:07,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:33,759 WARN L227 SmtUtils]: Spent 10.66s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 01:44:52,303 WARN L227 SmtUtils]: Spent 13.04s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 01:45:12,759 WARN L227 SmtUtils]: Spent 16.94s on a formula simplification. DAG size of input: 26 DAG size of output: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 01:45:32,078 WARN L227 SmtUtils]: Spent 7.03s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 01:45:32,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:45:32,078 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-11-13 01:45:32,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 01:45:32,079 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2021-11-13 01:45:32,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:45:32,079 INFO L225 Difference]: With dead ends: 31 [2021-11-13 01:45:32,079 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:45:32,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 137.5s TimeCoverageRelationStatistics Valid=56, Invalid=138, Unknown=24, NotChecked=54, Total=272 [2021-11-13 01:45:32,081 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32429.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.29ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 32967.02ms IncrementalHoareTripleChecker+Time [2021-11-13 01:45:32,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 39 Invalid, 147 Unknown, 0 Unchecked, 1.29ms Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 5 Unknown, 71 Unchecked, 32967.02ms Time] [2021-11-13 01:45:32,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:45:32,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:45:32,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:45:32,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:45:32,083 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2021-11-13 01:45:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:45:32,083 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:45:32,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 01:45:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:45:32,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:45:32,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 13 remaining) [2021-11-13 01:45:32,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2021-11-13 01:45:32,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2021-11-13 01:45:32,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (9 of 13 remaining) [2021-11-13 01:45:32,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (8 of 13 remaining) [2021-11-13 01:45:32,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2021-11-13 01:45:32,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2021-11-13 01:45:32,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2021-11-13 01:45:32,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2021-11-13 01:45:32,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2021-11-13 01:45:32,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2021-11-13 01:45:32,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2021-11-13 01:45:32,090 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2021-11-13 01:45:32,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 01:45:32,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:45:32,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:45:36,631 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 397) no Hoare annotation was computed. [2021-11-13 01:45:36,631 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 387) no Hoare annotation was computed. [2021-11-13 01:45:36,631 INFO L858 garLoopResultBuilder]: For program point L399(line 399) no Hoare annotation was computed. [2021-11-13 01:45:36,631 INFO L858 garLoopResultBuilder]: For program point L399-2(line 399) no Hoare annotation was computed. [2021-11-13 01:45:36,631 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 402) no Hoare annotation was computed. [2021-11-13 01:45:36,631 INFO L858 garLoopResultBuilder]: For program point L391(line 391) no Hoare annotation was computed. [2021-11-13 01:45:36,631 INFO L858 garLoopResultBuilder]: For program point L391-2(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,632 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 392) no Hoare annotation was computed. [2021-11-13 01:45:36,632 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:45:36,632 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 01:45:36,632 INFO L858 garLoopResultBuilder]: For program point L392(line 392) no Hoare annotation was computed. [2021-11-13 01:45:36,632 INFO L858 garLoopResultBuilder]: For program point L392-2(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,632 INFO L858 garLoopResultBuilder]: For program point L384(line 384) no Hoare annotation was computed. [2021-11-13 01:45:36,632 INFO L858 garLoopResultBuilder]: For program point L384-1(line 384) no Hoare annotation was computed. [2021-11-13 01:45:36,632 INFO L858 garLoopResultBuilder]: For program point L384-3(line 384) no Hoare annotation was computed. [2021-11-13 01:45:36,633 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 399) no Hoare annotation was computed. [2021-11-13 01:45:36,633 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-11-13 01:45:36,633 INFO L854 garLoopResultBuilder]: At program point L401(line 401) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 33554431.0 2854495385411919762116571938898990272765493248.0)) |ULTIMATE.start_main_~v~0#1|) (= |ULTIMATE.start_main_~smallestNormalFloat~0#1| ((_ to_fp 8 24) currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0))) (= ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)) |ULTIMATE.start_main_~largestSubnormalFloat~0#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-13 01:45:36,633 INFO L858 garLoopResultBuilder]: For program point L401-1(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,633 INFO L858 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2021-11-13 01:45:36,633 INFO L858 garLoopResultBuilder]: For program point L393-2(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,634 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 394) no Hoare annotation was computed. [2021-11-13 01:45:36,634 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-11-13 01:45:36,634 INFO L858 garLoopResultBuilder]: For program point L402-2(line 402) no Hoare annotation was computed. [2021-11-13 01:45:36,634 INFO L858 garLoopResultBuilder]: For program point L394(line 394) no Hoare annotation was computed. [2021-11-13 01:45:36,634 INFO L858 garLoopResultBuilder]: For program point L394-2(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,634 INFO L854 garLoopResultBuilder]: At program point L386(line 386) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 33554431.0 2854495385411919762116571938898990272765493248.0)) |ULTIMATE.start_main_~v~0#1|) (= ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)) |ULTIMATE.start_main_~largestSubnormalFloat~0#1|) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_main_~smallestNormalFloat~0#1| ((_ to_fp 8 24) currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-13 01:45:36,634 INFO L858 garLoopResultBuilder]: For program point L386-1(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,635 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 393) no Hoare annotation was computed. [2021-11-13 01:45:36,635 INFO L861 garLoopResultBuilder]: At program point L403(lines 378 404) the Hoare annotation is: true [2021-11-13 01:45:36,635 INFO L858 garLoopResultBuilder]: For program point L395(line 395) no Hoare annotation was computed. [2021-11-13 01:45:36,635 INFO L858 garLoopResultBuilder]: For program point L395-2(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,635 INFO L858 garLoopResultBuilder]: For program point L387(line 387) no Hoare annotation was computed. [2021-11-13 01:45:36,635 INFO L858 garLoopResultBuilder]: For program point L387-2(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,635 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 01:45:36,635 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 396) no Hoare annotation was computed. [2021-11-13 01:45:36,636 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2021-11-13 01:45:36,636 INFO L858 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2021-11-13 01:45:36,636 INFO L858 garLoopResultBuilder]: For program point L396-2(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,636 INFO L858 garLoopResultBuilder]: For program point L388(line 388) no Hoare annotation was computed. [2021-11-13 01:45:36,636 INFO L858 garLoopResultBuilder]: For program point L388-2(line 388) no Hoare annotation was computed. [2021-11-13 01:45:36,636 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:45:36,636 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 395) no Hoare annotation was computed. [2021-11-13 01:45:36,636 INFO L858 garLoopResultBuilder]: For program point L397(line 397) no Hoare annotation was computed. [2021-11-13 01:45:36,636 INFO L858 garLoopResultBuilder]: For program point L397-2(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,637 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 398) no Hoare annotation was computed. [2021-11-13 01:45:36,637 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 388) no Hoare annotation was computed. [2021-11-13 01:45:36,637 INFO L858 garLoopResultBuilder]: For program point L398(line 398) no Hoare annotation was computed. [2021-11-13 01:45:36,637 INFO L858 garLoopResultBuilder]: For program point L398-2(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,637 INFO L854 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 33554431.0 2854495385411919762116571938898990272765493248.0)) |ULTIMATE.start_main_~v~0#1|) (= |ULTIMATE.start_main_~smallestNormalFloat~0#1| ((_ to_fp 8 24) currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0))) (= ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)) |ULTIMATE.start_main_~largestSubnormalFloat~0#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-13 01:45:36,637 INFO L858 garLoopResultBuilder]: For program point L390-1(lines 379 404) no Hoare annotation was computed. [2021-11-13 01:45:36,637 INFO L858 garLoopResultBuilder]: For program point L3-2(lines 2 4) no Hoare annotation was computed. [2021-11-13 01:45:36,638 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 2 4) the Hoare annotation is: true [2021-11-13 01:45:36,638 INFO L858 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-11-13 01:45:36,638 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 2 4) no Hoare annotation was computed. [2021-11-13 01:45:36,643 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:45:36,645 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:45:36,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:45:36 BoogieIcfgContainer [2021-11-13 01:45:36,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:45:36,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:45:36,655 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:45:36,656 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:45:36,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:36:15" (3/4) ... [2021-11-13 01:45:36,660 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:45:36,668 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-13 01:45:36,675 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-13 01:45:36,676 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 01:45:36,676 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 01:45:36,676 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:45:36,726 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:45:36,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:45:36,727 INFO L158 Benchmark]: Toolchain (without parser) took 571090.41ms. Allocated memory was 71.3MB in the beginning and 132.1MB in the end (delta: 60.8MB). Free memory was 50.4MB in the beginning and 80.8MB in the end (delta: -30.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2021-11-13 01:45:36,727 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:45:36,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1033.63ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 34.4MB in the end (delta: 15.8MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2021-11-13 01:45:36,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.03ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 34.4MB in the beginning and 68.3MB in the end (delta: -33.9MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2021-11-13 01:45:36,729 INFO L158 Benchmark]: Boogie Preprocessor took 54.96ms. Allocated memory is still 88.1MB. Free memory was 68.3MB in the beginning and 67.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:45:36,730 INFO L158 Benchmark]: RCFGBuilder took 8616.88ms. Allocated memory is still 88.1MB. Free memory was 66.7MB in the beginning and 55.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:45:36,730 INFO L158 Benchmark]: TraceAbstraction took 561194.94ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 55.0MB in the beginning and 84.0MB in the end (delta: -29.0MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-11-13 01:45:36,731 INFO L158 Benchmark]: Witness Printer took 70.84ms. Allocated memory is still 132.1MB. Free memory was 84.0MB in the beginning and 80.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 01:45:36,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1033.63ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 34.4MB in the end (delta: 15.8MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.03ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 34.4MB in the beginning and 68.3MB in the end (delta: -33.9MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.96ms. Allocated memory is still 88.1MB. Free memory was 68.3MB in the beginning and 67.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 8616.88ms. Allocated memory is still 88.1MB. Free memory was 66.7MB in the beginning and 55.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 561194.94ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 55.0MB in the beginning and 84.0MB in the end (delta: -29.0MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 70.84ms. Allocated memory is still 132.1MB. Free memory was 84.0MB in the beginning and 80.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 384]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 387]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 388]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 392]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 393]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 394]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 395]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 396]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 397]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 398]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 399]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 402]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 561.1s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 191.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 87557.05ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 640 SdHoareTripleChecker+Invalid, 85768.37ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 151 IncrementalHoareTripleChecker+Unchecked, 343 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 297 mSDtfsCounter, 279 mSolverCounterSat, 18.44ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 427 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 156.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 60 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 361.4s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 416 ConstructedInterpolants, 34 QuantifiedInterpolants, 2224 SizeOfPredicates, 45 NumberOfNonLiveVariables, 466 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 80/80 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 - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - InvariantResult [Line: 378]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-13 01:45:36,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45cd8bcd-f333-44f3-ab95-44d0c886b9d9/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE