./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/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_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/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_60caca3f-ae4a-4cc4-b681-9167d634cb20/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 c3d8fd51b47ba78ffa0ce38d0a5a9796d128a31f69295c1dd841ff5db63ed4f4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:30:07,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:30:07,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:30:07,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:30:07,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:30:07,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:30:07,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:30:07,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:30:07,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:30:07,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:30:07,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:30:07,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:30:07,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:30:07,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:30:07,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:30:07,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:30:07,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:30:07,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:30:07,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:30:07,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:30:07,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:30:07,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:30:07,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:30:07,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:30:07,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:30:07,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:30:07,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:30:07,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:30:07,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:30:07,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:30:07,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:30:07,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:30:07,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:30:07,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:30:07,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:30:07,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:30:07,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:30:07,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:30:07,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:30:07,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:30:07,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:30:07,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 02:30:07,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:30:07,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:30:07,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:30:07,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:30:07,203 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:30:07,203 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:30:07,203 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:30:07,203 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:30:07,204 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:30:07,204 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:30:07,204 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:30:07,204 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:30:07,205 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:30:07,205 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:30:07,205 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:30:07,205 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:30:07,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:30:07,207 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:30:07,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:30:07,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:30:07,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:30:07,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:30:07,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:30:07,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:30:07,208 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:30:07,209 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:30:07,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:30:07,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:30:07,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:30:07,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:30:07,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:30:07,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:30:07,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:30:07,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:30:07,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:30:07,224 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:30:07,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:30:07,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:30:07,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:30:07,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:30:07,225 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3d8fd51b47ba78ffa0ce38d0a5a9796d128a31f69295c1dd841ff5db63ed4f4 [2021-11-13 02:30:07,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:30:07,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:30:07,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:30:07,516 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:30:07,517 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:30:07,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-11-13 02:30:07,597 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data/09ab02c7a/686489294f61477cb59517936b838076/FLAG1cbc79fed [2021-11-13 02:30:08,179 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:30:08,179 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-11-13 02:30:08,199 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data/09ab02c7a/686489294f61477cb59517936b838076/FLAG1cbc79fed [2021-11-13 02:30:08,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data/09ab02c7a/686489294f61477cb59517936b838076 [2021-11-13 02:30:08,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:30:08,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:30:08,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:30:08,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:30:08,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:30:08,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:08" (1/1) ... [2021-11-13 02:30:08,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf09b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:08, skipping insertion in model container [2021-11-13 02:30:08,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:08" (1/1) ... [2021-11-13 02:30:08,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:30:08,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:30:09,115 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.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) 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:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java: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 02:30:09,128 INFO L158 Benchmark]: Toolchain (without parser) took 678.57ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 64.5MB in the beginning and 76.4MB in the end (delta: -11.9MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-11-13 02:30:09,129 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:30:09,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 676.46ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 64.3MB in the beginning and 76.4MB in the end (delta: -12.1MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-11-13 02:30:09,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 676.46ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 64.3MB in the beginning and 76.4MB in the end (delta: -12.1MB). Peak memory consumption was 9.0MB. 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/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_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/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_60caca3f-ae4a-4cc4-b681-9167d634cb20/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 c3d8fd51b47ba78ffa0ce38d0a5a9796d128a31f69295c1dd841ff5db63ed4f4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:30:11,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:30:11,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:30:11,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:30:11,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:30:11,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:30:11,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:30:11,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:30:11,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:30:11,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:30:11,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:30:11,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:30:11,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:30:11,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:30:11,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:30:11,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:30:11,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:30:11,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:30:11,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:30:11,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:30:11,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:30:11,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:30:11,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:30:11,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:30:11,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:30:11,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:30:11,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:30:11,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:30:11,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:30:11,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:30:11,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:30:11,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:30:11,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:30:11,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:30:11,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:30:11,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:30:11,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:30:11,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:30:11,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:30:11,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:30:11,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:30:11,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 02:30:11,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:30:11,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:30:11,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:30:11,503 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:30:11,503 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:30:11,504 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:30:11,504 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:30:11,504 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:30:11,504 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:30:11,504 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:30:11,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:30:11,507 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:30:11,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:30:11,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:30:11,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:30:11,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:30:11,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:30:11,508 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:30:11,509 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:30:11,509 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:30:11,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:30:11,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:30:11,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:30:11,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:30:11,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:30:11,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:30:11,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:30:11,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:30:11,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:30:11,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:30:11,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:30:11,512 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:30:11,512 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:30:11,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:30:11,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:30:11,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:30:11,513 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3d8fd51b47ba78ffa0ce38d0a5a9796d128a31f69295c1dd841ff5db63ed4f4 [2021-11-13 02:30:11,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:30:11,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:30:11,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:30:11,929 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:30:11,930 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:30:11,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-11-13 02:30:11,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data/171bbabea/98578d2143594ffab6308cfa04901216/FLAG632c16358 [2021-11-13 02:30:12,601 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:30:12,602 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-11-13 02:30:12,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data/171bbabea/98578d2143594ffab6308cfa04901216/FLAG632c16358 [2021-11-13 02:30:12,840 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/data/171bbabea/98578d2143594ffab6308cfa04901216 [2021-11-13 02:30:12,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:30:12,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:30:12,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:30:12,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:30:12,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:30:12,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:12" (1/1) ... [2021-11-13 02:30:12,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781c6653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:12, skipping insertion in model container [2021-11-13 02:30:12,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:12" (1/1) ... [2021-11-13 02:30:12,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:30:12,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:30:13,679 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41149,41162] [2021-11-13 02:30:13,683 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41296,41309] [2021-11-13 02:30:13,688 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41445,41458] [2021-11-13 02:30:13,693 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41846,41859] [2021-11-13 02:30:13,697 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41993,42006] [2021-11-13 02:30:13,705 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42394,42407] [2021-11-13 02:30:13,710 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42541,42554] [2021-11-13 02:30:13,713 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42582,42595] [2021-11-13 02:30:13,719 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42965,42978] [2021-11-13 02:30:13,721 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43112,43125] [2021-11-13 02:30:13,733 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43610,43623] [2021-11-13 02:30:13,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:30:13,752 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:30:13,784 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41149,41162] [2021-11-13 02:30:13,785 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41296,41309] [2021-11-13 02:30:13,787 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41445,41458] [2021-11-13 02:30:13,791 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41846,41859] [2021-11-13 02:30:13,793 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41993,42006] [2021-11-13 02:30:13,796 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42394,42407] [2021-11-13 02:30:13,798 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42541,42554] [2021-11-13 02:30:13,799 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42582,42595] [2021-11-13 02:30:13,802 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42965,42978] [2021-11-13 02:30:13,803 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43112,43125] [2021-11-13 02:30:13,808 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_60caca3f-ae4a-4cc4-b681-9167d634cb20/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43610,43623] [2021-11-13 02:30:13,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:30:14,017 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:30:14,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14 WrapperNode [2021-11-13 02:30:14,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:30:14,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:30:14,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:30:14,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:30:14,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:30:14,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:30:14,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:30:14,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:30:14,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:30:14,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:30:14,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:30:14,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:30:14,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:30:14,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:30:14,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:30:14,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:30:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:30:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:30:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:30:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 02:30:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 02:30:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:30:14,706 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:30:14,707 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:30:14,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:14 BoogieIcfgContainer [2021-11-13 02:30:14,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:30:14,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:30:14,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:30:14,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:30:14,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:30:12" (1/3) ... [2021-11-13 02:30:14,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6368f860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:14, skipping insertion in model container [2021-11-13 02:30:14,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14" (2/3) ... [2021-11-13 02:30:14,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6368f860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:14, skipping insertion in model container [2021-11-13 02:30:14,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:14" (3/3) ... [2021-11-13 02:30:14,719 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp4.i [2021-11-13 02:30:14,725 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:30:14,725 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-13 02:30:14,834 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:30:14,844 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 02:30:14,844 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-13 02:30:14,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.696969696969697) internal successors, (56), 44 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 02:30:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 02:30:14,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:14,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:14,878 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 02:30:14,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:14,889 INFO L85 PathProgramCache]: Analyzing trace with hash 855794161, now seen corresponding path program 1 times [2021-11-13 02:30:14,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:14,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158501267] [2021-11-13 02:30:14,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:14,904 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:14,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:14,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:14,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:30:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:15,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 02:30:15,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:15,079 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 02:30:15,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:15,110 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 02:30:15,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:15,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158501267] [2021-11-13 02:30:15,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158501267] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:15,112 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:15,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:30:15,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638616728] [2021-11-13 02:30:15,131 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:15,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:30:15,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:15,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:30:15,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:30:15,167 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.696969696969697) internal successors, (56), 44 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 02:30:15,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:15,191 INFO L93 Difference]: Finished difference Result 99 states and 133 transitions. [2021-11-13 02:30:15,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:30:15,194 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-11-13 02:30:15,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:15,203 INFO L225 Difference]: With dead ends: 99 [2021-11-13 02:30:15,203 INFO L226 Difference]: Without dead ends: 48 [2021-11-13 02:30:15,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:30:15,212 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:15,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.35ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 02:30:15,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-13 02:30:15,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-13 02:30:15,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 41 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 02:30:15,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2021-11-13 02:30:15,258 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 9 [2021-11-13 02:30:15,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:15,258 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2021-11-13 02:30:15,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 02:30:15,259 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2021-11-13 02:30:15,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 02:30:15,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:15,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:15,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:15,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:15,478 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 02:30:15,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:15,479 INFO L85 PathProgramCache]: Analyzing trace with hash 857641203, now seen corresponding path program 1 times [2021-11-13 02:30:15,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:15,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383681656] [2021-11-13 02:30:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:15,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:15,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:15,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:15,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:30:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:15,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:30:15,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:17,959 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 02:30:17,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:20,058 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 02:30:20,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:20,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383681656] [2021-11-13 02:30:20,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383681656] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:20,059 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:20,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 02:30:20,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386571239] [2021-11-13 02:30:20,061 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:20,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:30:20,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:20,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:30:20,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:30:20,072 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:30:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:20,207 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-11-13 02:30:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:30:20,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 9 [2021-11-13 02:30:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:20,210 INFO L225 Difference]: With dead ends: 48 [2021-11-13 02:30:20,210 INFO L226 Difference]: Without dead ends: 42 [2021-11-13 02:30:20,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:30:20,212 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 64 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.79ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.68ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:20,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 73 Invalid, 31 Unknown, 0 Unchecked, 2.79ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 108.68ms Time] [2021-11-13 02:30:20,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-13 02:30:20,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-11-13 02:30:20,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.25) internal successors, (35), 35 states have internal predecessors, (35), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 02:30:20,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2021-11-13 02:30:20,232 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 9 [2021-11-13 02:30:20,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:20,234 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2021-11-13 02:30:20,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:30:20,235 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2021-11-13 02:30:20,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 02:30:20,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:20,236 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:20,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:20,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:20,451 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 02:30:20,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:20,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1222120034, now seen corresponding path program 1 times [2021-11-13 02:30:20,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:20,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147864809] [2021-11-13 02:30:20,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:20,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:20,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:20,459 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:20,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:30:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:20,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:30:20,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:20,638 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 02:30:20,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:20,872 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 02:30:20,873 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:20,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147864809] [2021-11-13 02:30:20,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147864809] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:20,874 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:20,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 02:30:20,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152505464] [2021-11-13 02:30:20,875 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:20,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:30:20,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:20,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:30:20,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:30:20,879 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:30:21,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:21,039 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-11-13 02:30:21,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:30:21,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2021-11-13 02:30:21,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:21,045 INFO L225 Difference]: With dead ends: 42 [2021-11-13 02:30:21,046 INFO L226 Difference]: Without dead ends: 38 [2021-11-13 02:30:21,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:30:21,051 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 46 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.24ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.40ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:21,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 122 Invalid, 53 Unknown, 0 Unchecked, 9.24ms Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 105.40ms Time] [2021-11-13 02:30:21,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-13 02:30:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-13 02:30:21,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 31 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 02:30:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2021-11-13 02:30:21,077 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 18 [2021-11-13 02:30:21,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:21,078 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2021-11-13 02:30:21,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:30:21,079 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2021-11-13 02:30:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 02:30:21,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:21,082 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] [2021-11-13 02:30:21,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:21,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:21,308 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 02:30:21,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:21,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1704996651, now seen corresponding path program 1 times [2021-11-13 02:30:21,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:21,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572173436] [2021-11-13 02:30:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:21,318 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:21,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:21,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:21,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:30:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:21,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:30:21,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:21,606 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 02:30:21,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:21,916 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 02:30:21,916 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:21,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572173436] [2021-11-13 02:30:21,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572173436] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:21,917 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:21,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 02:30:21,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376736500] [2021-11-13 02:30:21,919 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:21,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:30:21,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:21,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:30:21,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:30:21,923 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 02:30:22,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:22,031 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2021-11-13 02:30:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:30:22,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2021-11-13 02:30:22,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:22,033 INFO L225 Difference]: With dead ends: 38 [2021-11-13 02:30:22,034 INFO L226 Difference]: Without dead ends: 32 [2021-11-13 02:30:22,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:30:22,035 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 28 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.91ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.99ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:22,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 97 Invalid, 58 Unknown, 0 Unchecked, 2.91ms Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 86.99ms Time] [2021-11-13 02:30:22,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-13 02:30:22,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-13 02:30:22,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 25 states have internal predecessors, (25), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 02:30:22,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-11-13 02:30:22,043 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 26 [2021-11-13 02:30:22,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:22,043 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-11-13 02:30:22,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 02:30:22,044 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-11-13 02:30:22,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 02:30:22,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:22,046 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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 02:30:22,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:22,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:22,262 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 02:30:22,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:22,262 INFO L85 PathProgramCache]: Analyzing trace with hash -826066940, now seen corresponding path program 1 times [2021-11-13 02:30:22,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:22,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745770426] [2021-11-13 02:30:22,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:22,264 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:22,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:22,265 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:22,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:30:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:22,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:30:22,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:22,468 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 02:30:22,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 02:30:22,678 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:22,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745770426] [2021-11-13 02:30:22,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745770426] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:22,679 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:22,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 02:30:22,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047805326] [2021-11-13 02:30:22,680 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:22,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:30:22,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:22,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:30:22,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:30:22,683 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 02:30:22,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:22,792 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-11-13 02:30:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:30:22,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 35 [2021-11-13 02:30:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:22,794 INFO L225 Difference]: With dead ends: 32 [2021-11-13 02:30:22,794 INFO L226 Difference]: Without dead ends: 28 [2021-11-13 02:30:22,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:30:22,796 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.75ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.99ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:22,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 107 Invalid, 58 Unknown, 0 Unchecked, 2.75ms Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 87.99ms Time] [2021-11-13 02:30:22,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-13 02:30:22,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-13 02:30:22,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 02:30:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-11-13 02:30:22,808 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 35 [2021-11-13 02:30:22,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:22,809 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-11-13 02:30:22,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 02:30:22,810 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-11-13 02:30:22,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-13 02:30:22,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:22,816 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1] [2021-11-13 02:30:22,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-13 02:30:23,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:23,031 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 02:30:23,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:23,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1889668375, now seen corresponding path program 1 times [2021-11-13 02:30:23,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:23,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856711934] [2021-11-13 02:30:23,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:23,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:23,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:23,035 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:23,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:30:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:23,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:30:23,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-13 02:30:23,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-13 02:30:23,421 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:23,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856711934] [2021-11-13 02:30:23,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856711934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:23,421 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:23,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-13 02:30:23,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423339513] [2021-11-13 02:30:23,422 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:23,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:30:23,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:23,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:30:23,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:30:23,424 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 02:30:23,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:23,482 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-11-13 02:30:23,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:30:23,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2021-11-13 02:30:23,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:23,483 INFO L225 Difference]: With dead ends: 28 [2021-11-13 02:30:23,483 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 02:30:23,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:30:23,487 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:23,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 24 Unknown, 0 Unchecked, 1.07ms Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 42.00ms Time] [2021-11-13 02:30:23,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 02:30:23,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 02:30:23,488 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 02:30:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 02:30:23,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2021-11-13 02:30:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:23,491 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 02:30:23,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 02:30:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 02:30:23,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 02:30:23,493 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2021-11-13 02:30:23,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2021-11-13 02:30:23,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2021-11-13 02:30:23,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 11 remaining) [2021-11-13 02:30:23,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 11 remaining) [2021-11-13 02:30:23,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2021-11-13 02:30:23,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2021-11-13 02:30:23,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2021-11-13 02:30:23,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2021-11-13 02:30:23,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2021-11-13 02:30:23,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2021-11-13 02:30:23,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:23,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:23,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 02:30:23,771 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 988) no Hoare annotation was computed. [2021-11-13 02:30:23,772 INFO L858 garLoopResultBuilder]: For program point L989(line 989) no Hoare annotation was computed. [2021-11-13 02:30:23,772 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 998) no Hoare annotation was computed. [2021-11-13 02:30:23,772 INFO L858 garLoopResultBuilder]: For program point L989-2(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,772 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2021-11-13 02:30:23,772 INFO L858 garLoopResultBuilder]: For program point L981(line 981) no Hoare annotation was computed. [2021-11-13 02:30:23,772 INFO L858 garLoopResultBuilder]: For program point L981-2(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,773 INFO L858 garLoopResultBuilder]: For program point L973(line 973) no Hoare annotation was computed. [2021-11-13 02:30:23,773 INFO L858 garLoopResultBuilder]: For program point L973-2(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,773 INFO L858 garLoopResultBuilder]: For program point L998(line 998) no Hoare annotation was computed. [2021-11-13 02:30:23,773 INFO L858 garLoopResultBuilder]: For program point L998-2(line 998) no Hoare annotation was computed. [2021-11-13 02:30:23,773 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 02:30:23,773 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 982) no Hoare annotation was computed. [2021-11-13 02:30:23,773 INFO L858 garLoopResultBuilder]: For program point L990(line 990) no Hoare annotation was computed. [2021-11-13 02:30:23,773 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 02:30:23,774 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 02:30:23,774 INFO L858 garLoopResultBuilder]: For program point L990-2(line 990) no Hoare annotation was computed. [2021-11-13 02:30:23,774 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2021-11-13 02:30:23,774 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 973) no Hoare annotation was computed. [2021-11-13 02:30:23,774 INFO L858 garLoopResultBuilder]: For program point L982(line 982) no Hoare annotation was computed. [2021-11-13 02:30:23,774 INFO L858 garLoopResultBuilder]: For program point L982-2(line 982) no Hoare annotation was computed. [2021-11-13 02:30:23,774 INFO L858 garLoopResultBuilder]: For program point L974(line 974) no Hoare annotation was computed. [2021-11-13 02:30:23,775 INFO L858 garLoopResultBuilder]: For program point L974-2(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,775 INFO L854 garLoopResultBuilder]: At program point L1003(line 1003) the Hoare annotation is: (and (fp.isNormal |ULTIMATE.start_main_~d1~0#1|) (fp.isInfinite |ULTIMATE.start_main_~d2~0#1|) (fp.isNaN |ULTIMATE.start_main_~d3~0#1|) (or (fp.isNormal |ULTIMATE.start_main_~d4~0#1|) (fp.isSubnormal |ULTIMATE.start_main_~d4~0#1|) (fp.isZero |ULTIMATE.start_main_~d4~0#1|))) [2021-11-13 02:30:23,775 INFO L858 garLoopResultBuilder]: For program point L1003-1(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,775 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 02:30:23,775 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2021-11-13 02:30:23,775 INFO L854 garLoopResultBuilder]: At program point L987(line 987) the Hoare annotation is: (and (fp.isNormal |ULTIMATE.start_main_~d1~0#1|) (fp.isInfinite |ULTIMATE.start_main_~d2~0#1|)) [2021-11-13 02:30:23,776 INFO L858 garLoopResultBuilder]: For program point L987-1(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,776 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 981) no Hoare annotation was computed. [2021-11-13 02:30:23,776 INFO L858 garLoopResultBuilder]: For program point L975(line 975) no Hoare annotation was computed. [2021-11-13 02:30:23,776 INFO L858 garLoopResultBuilder]: For program point L975-2(line 975) no Hoare annotation was computed. [2021-11-13 02:30:23,776 INFO L858 garLoopResultBuilder]: For program point L1004(line 1004) no Hoare annotation was computed. [2021-11-13 02:30:23,776 INFO L858 garLoopResultBuilder]: For program point L967(lines 967 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,776 INFO L854 garLoopResultBuilder]: At program point L996(line 996) the Hoare annotation is: (and (fp.isNormal |ULTIMATE.start_main_~d1~0#1|) (fp.isInfinite |ULTIMATE.start_main_~d2~0#1|) (fp.isNaN |ULTIMATE.start_main_~d3~0#1|)) [2021-11-13 02:30:23,777 INFO L858 garLoopResultBuilder]: For program point L996-1(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,778 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 989) no Hoare annotation was computed. [2021-11-13 02:30:23,778 INFO L858 garLoopResultBuilder]: For program point L988(line 988) no Hoare annotation was computed. [2021-11-13 02:30:23,778 INFO L858 garLoopResultBuilder]: For program point L988-2(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,778 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 1004) no Hoare annotation was computed. [2021-11-13 02:30:23,778 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2021-11-13 02:30:23,778 INFO L854 garLoopResultBuilder]: At program point L980(line 980) the Hoare annotation is: (fp.isNormal |ULTIMATE.start_main_~d1~0#1|) [2021-11-13 02:30:23,779 INFO L858 garLoopResultBuilder]: For program point L980-1(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,779 INFO L861 garLoopResultBuilder]: At program point L972(line 972) the Hoare annotation is: true [2021-11-13 02:30:23,779 INFO L858 garLoopResultBuilder]: For program point L972-1(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,779 INFO L858 garLoopResultBuilder]: For program point L997(line 997) no Hoare annotation was computed. [2021-11-13 02:30:23,779 INFO L858 garLoopResultBuilder]: For program point L997-2(lines 968 1005) no Hoare annotation was computed. [2021-11-13 02:30:23,779 INFO L858 garLoopResultBuilder]: For program point L3-2(lines 2 4) no Hoare annotation was computed. [2021-11-13 02:30:23,779 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 2 4) the Hoare annotation is: true [2021-11-13 02:30:23,780 INFO L858 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-11-13 02:30:23,780 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 2 4) no Hoare annotation was computed. [2021-11-13 02:30:23,783 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-13 02:30:23,784 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:30:23,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:30:23 BoogieIcfgContainer [2021-11-13 02:30:23,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 02:30:23,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 02:30:23,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 02:30:23,791 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 02:30:23,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:14" (3/4) ... [2021-11-13 02:30:23,794 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 02:30:23,800 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-13 02:30:23,808 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-13 02:30:23,808 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 02:30:23,809 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 02:30:23,809 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 02:30:23,863 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 02:30:23,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 02:30:23,864 INFO L158 Benchmark]: Toolchain (without parser) took 11017.77ms. Allocated memory was 69.2MB in the beginning and 209.7MB in the end (delta: 140.5MB). Free memory was 48.5MB in the beginning and 98.0MB in the end (delta: -49.4MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2021-11-13 02:30:23,864 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 69.2MB. Free memory was 50.3MB in the beginning and 50.2MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:30:23,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1169.67ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 48.4MB in the beginning and 62.0MB in the end (delta: -13.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2021-11-13 02:30:23,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.82ms. Allocated memory is still 98.6MB. Free memory was 62.0MB in the beginning and 59.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:30:23,866 INFO L158 Benchmark]: Boogie Preprocessor took 49.83ms. Allocated memory is still 98.6MB. Free memory was 59.4MB in the beginning and 57.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:30:23,866 INFO L158 Benchmark]: RCFGBuilder took 551.99ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 76.5MB in the end (delta: -18.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-11-13 02:30:23,867 INFO L158 Benchmark]: TraceAbstraction took 9078.13ms. Allocated memory was 98.6MB in the beginning and 209.7MB in the end (delta: 111.1MB). Free memory was 76.0MB in the beginning and 102.2MB in the end (delta: -26.2MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2021-11-13 02:30:23,867 INFO L158 Benchmark]: Witness Printer took 73.19ms. Allocated memory is still 209.7MB. Free memory was 102.2MB in the beginning and 98.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 02:30:23,870 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 69.2MB. Free memory was 50.3MB in the beginning and 50.2MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1169.67ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 48.4MB in the beginning and 62.0MB in the end (delta: -13.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.82ms. Allocated memory is still 98.6MB. Free memory was 62.0MB in the beginning and 59.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.83ms. Allocated memory is still 98.6MB. Free memory was 59.4MB in the beginning and 57.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.99ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 76.5MB in the end (delta: -18.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9078.13ms. Allocated memory was 98.6MB in the beginning and 209.7MB in the end (delta: 111.1MB). Free memory was 76.0MB in the beginning and 102.2MB in the end (delta: -26.2MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. * Witness Printer took 73.19ms. Allocated memory is still 209.7MB. Free memory was 102.2MB in the beginning and 98.0MB in the end (delta: 4.2MB). 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: 973]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 974]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 975]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 981]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 982]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 988]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 989]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 990]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 998]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1004]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 431.06ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 513 SdHoareTripleChecker+Invalid, 355.85ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 318 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 209 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 195 mSDtfsCounter, 209 mSolverCounterSat, 20.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 273 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 30 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 402 SizeOfPredicates, 11 NumberOfNonLiveVariables, 284 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 160/160 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 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-13 02:30:23,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60caca3f-ae4a-4cc4-b681-9167d634cb20/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