./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ....................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:29:11,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:29:11,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:29:11,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:29:11,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:29:11,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:29:11,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:29:11,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:29:11,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:29:11,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:29:11,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:29:11,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:29:11,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:29:11,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:29:11,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:29:11,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:29:11,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:29:11,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:29:11,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:29:11,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:29:11,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:29:11,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:29:11,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:29:11,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:29:11,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:29:11,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:29:11,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:29:11,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:29:11,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:29:11,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:29:11,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:29:11,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:29:11,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:29:11,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:29:11,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:29:11,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:29:11,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:29:11,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:29:11,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:29:11,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:29:11,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:29:11,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:29:11,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:29:11,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:29:11,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:29:11,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:29:11,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:29:11,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:29:11,532 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:29:11,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:29:11,532 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:29:11,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:29:11,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:29:11,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:29:11,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:29:11,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:29:11,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:29:11,535 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:29:11,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:29:11,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:29:11,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:29:11,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:29:11,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:29:11,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:29:11,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:29:11,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:29:11,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:29:11,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:29:11,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:29:11,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:29:11,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:29:11,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:29:11,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2021-10-13 00:29:11,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:29:11,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:29:11,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:29:11,886 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:29:11,886 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:29:11,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-13 00:29:11,964 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data/f9f70ea9e/7be9e7673a5744cb9ef0eba7009140b9/FLAG5fd2c4cdb [2021-10-13 00:29:12,560 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:29:12,561 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-13 00:29:12,587 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data/f9f70ea9e/7be9e7673a5744cb9ef0eba7009140b9/FLAG5fd2c4cdb [2021-10-13 00:29:12,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data/f9f70ea9e/7be9e7673a5744cb9ef0eba7009140b9 [2021-10-13 00:29:12,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:29:12,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:29:12,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:29:12,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:29:12,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:29:12,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:29:12" (1/1) ... [2021-10-13 00:29:12,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdf3634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:12, skipping insertion in model container [2021-10-13 00:29:12,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:29:12" (1/1) ... [2021-10-13 00:29:12,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:29:12,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:29:13,507 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:1694) 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:1408) 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:1087) 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:2349) 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:712) 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:2349) 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:2349) 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:1576) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) 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:3218) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 00:29:13,511 INFO L168 Benchmark]: Toolchain (without parser) took 693.47 ms. Allocated memory is still 104.9 MB. Free memory was 63.9 MB in the beginning and 78.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:29:13,512 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 104.9 MB. Free memory is still 82.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:29:13,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.78 ms. Allocated memory is still 104.9 MB. Free memory was 63.7 MB in the beginning and 78.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:29:13,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 104.9 MB. Free memory is still 82.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.78 ms. Allocated memory is still 104.9 MB. Free memory was 63.7 MB in the beginning and 78.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:29:15,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:29:15,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:29:15,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:29:15,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:29:15,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:29:15,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:29:15,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:29:15,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:29:15,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:29:15,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:29:15,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:29:15,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:29:15,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:29:15,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:29:15,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:29:15,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:29:15,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:29:15,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:29:15,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:29:15,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:29:15,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:29:15,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:29:15,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:29:15,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:29:15,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:29:15,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:29:15,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:29:15,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:29:15,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:29:15,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:29:15,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:29:15,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:29:15,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:29:15,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:29:15,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:29:15,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:29:15,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:29:15,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:29:15,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:29:15,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:29:15,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 00:29:15,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:29:15,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:29:15,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:29:15,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:29:15,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:29:15,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:29:15,834 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:29:15,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:29:15,834 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:29:15,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:29:15,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:29:15,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:29:15,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:29:15,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:29:15,836 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:29:15,836 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:29:15,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:29:15,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:29:15,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:29:15,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:29:15,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:29:15,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:29:15,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:29:15,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:29:15,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:29:15,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:29:15,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:29:15,839 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:29:15,839 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:29:15,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:29:15,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:29:15,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:29:15,840 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2021-10-13 00:29:16,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:29:16,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:29:16,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:29:16,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:29:16,229 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:29:16,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-13 00:29:16,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data/cf69a467e/ccce9573441a4dec9e1fe509ed4c8f45/FLAG0431718b2 [2021-10-13 00:29:16,939 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:29:16,940 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-13 00:29:16,959 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data/cf69a467e/ccce9573441a4dec9e1fe509ed4c8f45/FLAG0431718b2 [2021-10-13 00:29:17,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/data/cf69a467e/ccce9573441a4dec9e1fe509ed4c8f45 [2021-10-13 00:29:17,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:29:17,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:29:17,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:29:17,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:29:17,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:29:17,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:29:17" (1/1) ... [2021-10-13 00:29:17,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c36f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:17, skipping insertion in model container [2021-10-13 00:29:17,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:29:17" (1/1) ... [2021-10-13 00:29:17,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:29:17,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:29:17,847 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2021-10-13 00:29:17,857 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2021-10-13 00:29:17,862 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2021-10-13 00:29:17,865 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2021-10-13 00:29:17,866 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2021-10-13 00:29:17,867 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2021-10-13 00:29:17,868 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2021-10-13 00:29:17,868 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2021-10-13 00:29:17,869 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2021-10-13 00:29:17,870 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2021-10-13 00:29:17,871 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2021-10-13 00:29:17,872 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2021-10-13 00:29:17,874 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2021-10-13 00:29:17,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:29:17,887 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:29:17,951 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2021-10-13 00:29:17,954 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2021-10-13 00:29:17,956 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2021-10-13 00:29:17,958 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2021-10-13 00:29:17,959 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2021-10-13 00:29:17,959 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2021-10-13 00:29:17,960 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2021-10-13 00:29:17,968 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2021-10-13 00:29:17,969 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2021-10-13 00:29:17,971 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2021-10-13 00:29:17,974 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2021-10-13 00:29:17,974 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2021-10-13 00:29:17,983 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_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2021-10-13 00:29:17,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:29:18,155 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:29:18,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18 WrapperNode [2021-10-13 00:29:18,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:29:18,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:29:18,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:29:18,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:29:18,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:29:18,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:29:18,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:29:18,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:29:18,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:29:18,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:29:18,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:29:18,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:29:18,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (1/1) ... [2021-10-13 00:29:18,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:29:18,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:29:18,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:29:18,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:29:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:29:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:29:18,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:29:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:29:26,971 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:29:26,971 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 00:29:26,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:29:26 BoogieIcfgContainer [2021-10-13 00:29:26,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:29:26,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:29:26,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:29:26,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:29:26,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:29:17" (1/3) ... [2021-10-13 00:29:26,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9ec209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:29:26, skipping insertion in model container [2021-10-13 00:29:26,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:18" (2/3) ... [2021-10-13 00:29:26,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9ec209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:29:26, skipping insertion in model container [2021-10-13 00:29:26,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:29:26" (3/3) ... [2021-10-13 00:29:26,981 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2021-10-13 00:29:26,991 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:29:26,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-10-13 00:29:27,052 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:29:27,062 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:29:27,062 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-10-13 00:29:27,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 50 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:27,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 00:29:27,086 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:29:27,087 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 00:29:27,088 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-13 00:29:27,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:27,095 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-13 00:29:27,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:29:27,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752319224] [2021-10-13 00:29:27,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:27,113 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:29:27,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:29:27,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:29:27,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:29:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:29:27,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:29:27,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:29:27,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:29:27,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:29:27,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:29:27,455 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:29:27,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752319224] [2021-10-13 00:29:27,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752319224] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:29:27,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:29:27,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 00:29:27,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404257535] [2021-10-13 00:29:27,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:29:27,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:29:27,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:29:27,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:29:27,478 INFO L87 Difference]: Start difference. First operand has 51 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 50 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:32,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:29:32,199 INFO L93 Difference]: Finished difference Result 95 states and 124 transitions. [2021-10-13 00:29:32,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:29:32,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-13 00:29:32,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:29:32,231 INFO L225 Difference]: With dead ends: 95 [2021-10-13 00:29:32,231 INFO L226 Difference]: Without dead ends: 43 [2021-10-13 00:29:32,233 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:29:32,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-13 00:29:32,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-13 00:29:32,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.3125) internal successors, (42), 42 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2021-10-13 00:29:32,274 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 4 [2021-10-13 00:29:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:29:32,275 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2021-10-13 00:29:32,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:32,276 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2021-10-13 00:29:32,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:29:32,276 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:29:32,276 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:29:32,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:29:32,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:29:32,490 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-13 00:29:32,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:32,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1808724044, now seen corresponding path program 1 times [2021-10-13 00:29:32,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:29:32,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125164766] [2021-10-13 00:29:32,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:32,493 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:29:32,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:29:32,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:29:32,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:29:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:29:32,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:29:32,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:29:34,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:29:34,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:29:35,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:29:35,290 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:29:35,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125164766] [2021-10-13 00:29:35,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125164766] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:29:35,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:29:35,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 00:29:35,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003458713] [2021-10-13 00:29:35,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:29:35,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:29:35,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:29:35,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:29:35,294 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:45,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:29:45,542 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2021-10-13 00:29:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:29:45,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 00:29:45,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:29:45,557 INFO L225 Difference]: With dead ends: 43 [2021-10-13 00:29:45,557 INFO L226 Difference]: Without dead ends: 41 [2021-10-13 00:29:45,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 388.9ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:29:45,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-13 00:29:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-13 00:29:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 40 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:45,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2021-10-13 00:29:45,563 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 7 [2021-10-13 00:29:45,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:29:45,564 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2021-10-13 00:29:45,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:45,564 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2021-10-13 00:29:45,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:29:45,565 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:29:45,565 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:29:45,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:29:45,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:29:45,780 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-13 00:29:45,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:45,780 INFO L82 PathProgramCache]: Analyzing trace with hash 235874606, now seen corresponding path program 1 times [2021-10-13 00:29:45,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:29:45,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915275229] [2021-10-13 00:29:45,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:45,782 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:29:45,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:29:45,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:29:45,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:29:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:29:45,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:29:45,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:29:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:29:45,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:29:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:29:46,037 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:29:46,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915275229] [2021-10-13 00:29:46,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915275229] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:29:46,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:29:46,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 00:29:46,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946160065] [2021-10-13 00:29:46,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:29:46,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:29:46,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:29:46,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:29:46,039 INFO L87 Difference]: Start difference. First operand 41 states and 40 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:51,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:29:51,856 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2021-10-13 00:29:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:29:51,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 00:29:51,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:29:51,864 INFO L225 Difference]: With dead ends: 41 [2021-10-13 00:29:51,865 INFO L226 Difference]: Without dead ends: 37 [2021-10-13 00:29:51,865 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:29:51,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-13 00:29:51,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-13 00:29:51,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 36 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:51,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2021-10-13 00:29:51,870 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 8 [2021-10-13 00:29:51,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:29:51,870 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2021-10-13 00:29:51,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:51,870 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2021-10-13 00:29:51,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 00:29:51,871 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:29:51,871 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:29:51,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-13 00:29:52,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:29:52,072 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-13 00:29:52,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:52,073 INFO L82 PathProgramCache]: Analyzing trace with hash 377772985, now seen corresponding path program 1 times [2021-10-13 00:29:52,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:29:52,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406968623] [2021-10-13 00:29:52,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:52,075 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:29:52,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:29:52,075 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:29:52,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:29:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:29:52,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:29:52,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:29:53,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:29:53,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:30:08,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:08,128 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:30:08,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406968623] [2021-10-13 00:30:08,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406968623] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:30:08,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:30:08,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 00:30:08,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805051664] [2021-10-13 00:30:08,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:30:08,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:30:08,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:30:08,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:30:08,131 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:26,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:30:26,973 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2021-10-13 00:30:26,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:30:26,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 00:30:26,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:30:26,994 INFO L225 Difference]: With dead ends: 37 [2021-10-13 00:30:26,994 INFO L226 Difference]: Without dead ends: 35 [2021-10-13 00:30:26,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6552.2ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:30:26,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-13 00:30:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-13 00:30:26,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 34 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2021-10-13 00:30:27,000 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 11 [2021-10-13 00:30:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:30:27,000 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2021-10-13 00:30:27,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:27,001 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2021-10-13 00:30:27,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:30:27,002 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:30:27,002 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:30:27,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 00:30:27,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:30:27,206 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-13 00:30:27,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:30:27,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1173935240, now seen corresponding path program 1 times [2021-10-13 00:30:27,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:30:27,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541231047] [2021-10-13 00:30:27,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:30:27,208 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:30:27,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:30:27,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:30:27,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 00:30:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:30:27,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:30:27,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:30:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:27,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:30:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:27,579 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:30:27,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541231047] [2021-10-13 00:30:27,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541231047] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:30:27,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:30:27,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 00:30:27,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213451395] [2021-10-13 00:30:27,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:30:27,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:30:27,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:30:27,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:30:27,582 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:31,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:30:31,859 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2021-10-13 00:30:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:30:31,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 00:30:31,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:30:31,868 INFO L225 Difference]: With dead ends: 35 [2021-10-13 00:30:31,868 INFO L226 Difference]: Without dead ends: 31 [2021-10-13 00:30:31,868 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:30:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-13 00:30:31,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-13 00:30:31,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 30 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-10-13 00:30:31,872 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 12 [2021-10-13 00:30:31,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:30:31,872 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-10-13 00:30:31,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-10-13 00:30:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:30:31,873 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:30:31,873 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:30:31,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:30:32,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:30:32,074 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-13 00:30:32,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:30:32,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1424765088, now seen corresponding path program 1 times [2021-10-13 00:30:32,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:30:32,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790110750] [2021-10-13 00:30:32,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:30:32,075 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:30:32,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:30:32,076 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:30:32,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 00:30:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:30:32,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:30:32,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:30:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:32,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:30:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:35,283 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:30:35,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790110750] [2021-10-13 00:30:35,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790110750] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:30:35,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:30:35,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 00:30:35,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528170878] [2021-10-13 00:30:35,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:30:35,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:30:35,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:30:35,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:30:35,286 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:39,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:30:39,935 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2021-10-13 00:30:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:30:39,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 00:30:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:30:39,949 INFO L225 Difference]: With dead ends: 31 [2021-10-13 00:30:39,949 INFO L226 Difference]: Without dead ends: 29 [2021-10-13 00:30:39,949 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 507.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:30:39,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-13 00:30:39,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-13 00:30:39,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.12) internal successors, (28), 28 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:39,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2021-10-13 00:30:39,953 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 14 [2021-10-13 00:30:39,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:30:39,954 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2021-10-13 00:30:39,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:39,954 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2021-10-13 00:30:39,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:30:39,955 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:30:39,955 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:30:39,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:30:40,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:30:40,161 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-13 00:30:40,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:30:40,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1218048905, now seen corresponding path program 1 times [2021-10-13 00:30:40,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:30:40,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427409466] [2021-10-13 00:30:40,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:30:40,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:30:40,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:30:40,163 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:30:40,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 00:30:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:30:40,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:30:40,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:30:40,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:40,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:30:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:43,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:30:43,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427409466] [2021-10-13 00:30:43,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427409466] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:30:43,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:30:43,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 00:30:43,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012504608] [2021-10-13 00:30:43,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:30:43,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:30:43,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:30:43,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:30:43,586 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:47,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:30:47,434 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2021-10-13 00:30:47,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:30:47,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 00:30:47,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:30:47,447 INFO L225 Difference]: With dead ends: 29 [2021-10-13 00:30:47,447 INFO L226 Difference]: Without dead ends: 27 [2021-10-13 00:30:47,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 562.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:30:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-13 00:30:47,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-13 00:30:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 26 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2021-10-13 00:30:47,451 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 15 [2021-10-13 00:30:47,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:30:47,451 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2021-10-13 00:30:47,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:30:47,451 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2021-10-13 00:30:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 00:30:47,452 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:30:47,452 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:30:47,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:30:47,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:30:47,657 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-13 00:30:47,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:30:47,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1279638800, now seen corresponding path program 1 times [2021-10-13 00:30:47,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:30:47,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541583225] [2021-10-13 00:30:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:30:47,658 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:30:47,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:30:47,661 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:30:47,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 00:30:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:30:47,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:30:47,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:30:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:48,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:30:54,485 WARN L838 $PredicateComparison]: unable to prove that (fp.leq (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~smallestNormalFloat~0) c_ULTIMATE.start_main_~v~0) (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~v~0 ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~largestSubnormalFloat~0))) is different from false [2021-10-13 00:30:56,508 WARN L860 $PredicateComparison]: unable to prove that (fp.leq (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~smallestNormalFloat~0) c_ULTIMATE.start_main_~v~0) (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~v~0 ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~largestSubnormalFloat~0))) is different from true [2021-10-13 00:31:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:31:52,039 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:31:52,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541583225] [2021-10-13 00:31:52,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541583225] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:52,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:52,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-13 00:31:52,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456857612] [2021-10-13 00:31:52,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:31:52,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:31:52,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:31:52,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=6, Unknown=2, NotChecked=4, Total=20 [2021-10-13 00:31:52,043 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:31:59,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:59,656 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2021-10-13 00:31:59,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:31:59,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 00:31:59,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:59,670 INFO L225 Difference]: With dead ends: 27 [2021-10-13 00:31:59,671 INFO L226 Difference]: Without dead ends: 23 [2021-10-13 00:31:59,671 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7994.3ms TimeCoverageRelationStatistics Valid=8, Invalid=6, Unknown=2, NotChecked=4, Total=20 [2021-10-13 00:31:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-13 00:31:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-13 00:31:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:31:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-10-13 00:31:59,674 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 18 [2021-10-13 00:31:59,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:59,674 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-10-13 00:31:59,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:31:59,675 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-10-13 00:31:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:31:59,675 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:59,675 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:59,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:59,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:31:59,876 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-13 00:31:59,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:59,877 INFO L82 PathProgramCache]: Analyzing trace with hash -39659491, now seen corresponding path program 1 times [2021-10-13 00:31:59,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:31:59,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615675428] [2021-10-13 00:31:59,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:59,877 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:31:59,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:31:59,878 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:31:59,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 00:32:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:00,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:32:00,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:11,275 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (and (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)) ULTIMATE.start_main_~f~0)) (fp.isSubnormal ULTIMATE.start_main_~f~0))) is different from false [2021-10-13 00:32:13,286 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (and (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)) ULTIMATE.start_main_~f~0)) (fp.isSubnormal ULTIMATE.start_main_~f~0))) is different from true [2021-10-13 00:32:13,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:13,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:54,033 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:54,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615675428] [2021-10-13 00:32:54,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615675428] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:54,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:54,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-13 00:32:54,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955778260] [2021-10-13 00:32:54,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:32:54,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:54,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:32:54,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=25, Unknown=5, NotChecked=10, Total=56 [2021-10-13 00:32:54,035 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:33:31,156 WARN L207 SmtUtils]: Spent 7.32 s on a formula simplification that was a NOOP. DAG size: 12 [2021-10-13 00:34:17,319 WARN L207 SmtUtils]: Spent 12.28 s on a formula simplification that was a NOOP. DAG size: 19 [2021-10-13 00:34:35,099 WARN L207 SmtUtils]: Spent 14.15 s on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2021-10-13 00:34:35,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:35,101 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-10-13 00:34:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:34:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-13 00:34:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:35,102 INFO L225 Difference]: With dead ends: 23 [2021-10-13 00:34:35,102 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:34:35,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 83113.7ms TimeCoverageRelationStatistics Valid=48, Invalid=77, Unknown=11, NotChecked=20, Total=156 [2021-10-13 00:34:35,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:34:35,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:34:35,103 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) [2021-10-13 00:34:35,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:34:35,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-13 00:34:35,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:35,103 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:34:35,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:35,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:34:35,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:34:35,106 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,109 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:35,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:35,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:34:35,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:34:35,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:35,359 INFO L857 garLoopResultBuilder]: For program point L2-1(line 391) no Hoare annotation was computed. [2021-10-13 00:34:35,359 INFO L857 garLoopResultBuilder]: For program point L2-2(line 402) no Hoare annotation was computed. [2021-10-13 00:34:35,359 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 397) no Hoare annotation was computed. [2021-10-13 00:34:35,360 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 387) no Hoare annotation was computed. [2021-10-13 00:34:35,360 INFO L857 garLoopResultBuilder]: For program point L399(line 399) no Hoare annotation was computed. [2021-10-13 00:34:35,360 INFO L857 garLoopResultBuilder]: For program point L399-2(line 399) no Hoare annotation was computed. [2021-10-13 00:34:35,360 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 402) no Hoare annotation was computed. [2021-10-13 00:34:35,360 INFO L857 garLoopResultBuilder]: For program point L391(line 391) no Hoare annotation was computed. [2021-10-13 00:34:35,361 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 379 404) no Hoare annotation was computed. [2021-10-13 00:34:35,361 INFO L857 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-10-13 00:34:35,361 INFO L857 garLoopResultBuilder]: For program point L3-2(line 3) no Hoare annotation was computed. [2021-10-13 00:34:35,361 INFO L857 garLoopResultBuilder]: For program point L3-4(line 3) no Hoare annotation was computed. [2021-10-13 00:34:35,361 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 392) no Hoare annotation was computed. [2021-10-13 00:34:35,361 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:34:35,362 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:34:35,362 INFO L857 garLoopResultBuilder]: For program point L392(line 392) no Hoare annotation was computed. [2021-10-13 00:34:35,362 INFO L857 garLoopResultBuilder]: For program point L392-2(lines 379 404) no Hoare annotation was computed. [2021-10-13 00:34:35,362 INFO L857 garLoopResultBuilder]: For program point L384(line 384) no Hoare annotation was computed. [2021-10-13 00:34:35,362 INFO L857 garLoopResultBuilder]: For program point L384-1(line 384) no Hoare annotation was computed. [2021-10-13 00:34:35,362 INFO L857 garLoopResultBuilder]: For program point L384-3(line 384) no Hoare annotation was computed. [2021-10-13 00:34:35,363 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 399) no Hoare annotation was computed. [2021-10-13 00:34:35,363 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-10-13 00:34:35,363 INFO L857 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2021-10-13 00:34:35,363 INFO L857 garLoopResultBuilder]: For program point L393-2(lines 379 404) no Hoare annotation was computed. [2021-10-13 00:34:35,363 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 394) no Hoare annotation was computed. [2021-10-13 00:34:35,364 INFO L857 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-10-13 00:34:35,364 INFO L857 garLoopResultBuilder]: For program point L402-2(line 402) no Hoare annotation was computed. [2021-10-13 00:34:35,364 INFO L857 garLoopResultBuilder]: For program point L394(line 394) no Hoare annotation was computed. [2021-10-13 00:34:35,364 INFO L857 garLoopResultBuilder]: For program point L394-2(lines 379 404) no Hoare annotation was computed. [2021-10-13 00:34:35,364 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 393) no Hoare annotation was computed. [2021-10-13 00:34:35,364 INFO L853 garLoopResultBuilder]: At program point L403(lines 378 404) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~largestSubnormalFloat~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)))) [2021-10-13 00:34:35,365 INFO L857 garLoopResultBuilder]: For program point L395(line 395) no Hoare annotation was computed. [2021-10-13 00:34:35,365 INFO L857 garLoopResultBuilder]: For program point L395-2(lines 379 404) no Hoare annotation was computed. [2021-10-13 00:34:35,365 INFO L857 garLoopResultBuilder]: For program point L387(line 387) no Hoare annotation was computed. [2021-10-13 00:34:35,365 INFO L857 garLoopResultBuilder]: For program point L387-2(lines 379 404) no Hoare annotation was computed. [2021-10-13 00:34:35,365 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:34:35,365 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 396) no Hoare annotation was computed. [2021-10-13 00:34:35,366 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2021-10-13 00:34:35,366 INFO L857 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2021-10-13 00:34:35,366 INFO L857 garLoopResultBuilder]: For program point L396-2(lines 379 404) no Hoare annotation was computed. [2021-10-13 00:34:35,366 INFO L857 garLoopResultBuilder]: For program point L388(line 388) no Hoare annotation was computed. [2021-10-13 00:34:35,366 INFO L857 garLoopResultBuilder]: For program point L388-2(line 388) no Hoare annotation was computed. [2021-10-13 00:34:35,366 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:34:35,367 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 395) no Hoare annotation was computed. [2021-10-13 00:34:35,367 INFO L857 garLoopResultBuilder]: For program point L397(line 397) no Hoare annotation was computed. [2021-10-13 00:34:35,367 INFO L857 garLoopResultBuilder]: For program point L397-2(lines 379 404) no Hoare annotation was computed. [2021-10-13 00:34:35,367 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 398) no Hoare annotation was computed. [2021-10-13 00:34:35,367 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 388) no Hoare annotation was computed. [2021-10-13 00:34:35,368 INFO L857 garLoopResultBuilder]: For program point L398(line 398) no Hoare annotation was computed. [2021-10-13 00:34:35,368 INFO L857 garLoopResultBuilder]: For program point L398-2(lines 379 404) no Hoare annotation was computed. [2021-10-13 00:34:35,368 INFO L857 garLoopResultBuilder]: For program point L2(line 387) no Hoare annotation was computed. [2021-10-13 00:34:35,372 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:34:35,378 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:34:35,385 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:34:35,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:34:35 BoogieIcfgContainer [2021-10-13 00:34:35,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:34:35,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:34:35,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:34:35,387 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:34:35,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:29:26" (3/4) ... [2021-10-13 00:34:35,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:34:35,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 00:34:35,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:34:35,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:34:35,405 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:34:35,433 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) [2021-10-13 00:34:35,466 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:34:35,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:34:35,470 INFO L168 Benchmark]: Toolchain (without parser) took 318282.58 ms. Allocated memory was 56.6 MB in the beginning and 113.2 MB in the end (delta: 56.6 MB). Free memory was 32.7 MB in the beginning and 24.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:35,471 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 36.6 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:34:35,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 969.52 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 32.4 MB in the beginning and 55.4 MB in the end (delta: -23.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:35,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.00 ms. Allocated memory is still 75.5 MB. Free memory was 55.4 MB in the beginning and 52.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:35,473 INFO L168 Benchmark]: Boogie Preprocessor took 66.49 ms. Allocated memory is still 75.5 MB. Free memory was 52.6 MB in the beginning and 51.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:35,473 INFO L168 Benchmark]: RCFGBuilder took 8652.76 ms. Allocated memory is still 75.5 MB. Free memory was 51.3 MB in the beginning and 39.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:35,474 INFO L168 Benchmark]: TraceAbstraction took 308410.84 ms. Allocated memory was 75.5 MB in the beginning and 113.2 MB in the end (delta: 37.7 MB). Free memory was 39.0 MB in the beginning and 27.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:35,474 INFO L168 Benchmark]: Witness Printer took 79.43 ms. Allocated memory is still 113.2 MB. Free memory was 27.3 MB in the beginning and 24.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:35,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 36.6 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 969.52 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 32.4 MB in the beginning and 55.4 MB in the end (delta: -23.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.00 ms. Allocated memory is still 75.5 MB. Free memory was 55.4 MB in the beginning and 52.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.49 ms. Allocated memory is still 75.5 MB. Free memory was 52.6 MB in the beginning and 51.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8652.76 ms. Allocated memory is still 75.5 MB. Free memory was 51.3 MB in the beginning and 39.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 308410.84 ms. Allocated memory was 75.5 MB in the beginning and 113.2 MB in the end (delta: 37.7 MB). Free memory was 39.0 MB in the beginning and 27.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. * Witness Printer took 79.43 ms. Allocated memory is still 113.2 MB. Free memory was 27.3 MB in the beginning and 24.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 384]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 387]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 388]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 392]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 393]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 394]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 395]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 396]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 397]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 398]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 399]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 402]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 308321.3ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 16.6ms, AutomataDifference: 161237.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 41.9ms, InitialAbstractionConstructionTime: 13.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 158 SDtfs, 337 SDslu, 82 SDs, 0 SdLazy, 246 SolverSat, 10 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 95213.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 99191.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 54.9ms AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 6 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 31.6ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 53.1ms SsaConstructionTime, 707.5ms SatisfiabilityAnalysisTime, 143633.3ms InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 204 ConstructedInterpolants, 28 QuantifiedInterpolants, 1416 SizeOfPredicates, 38 NumberOfNonLiveVariables, 312 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - InvariantResult [Line: 378]: Loop Invariant [2021-10-13 00:34:35,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:34:35,495 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) RESULT: Ultimate proved your program to be correct! [2021-10-13 00:34:35,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b3e4d33-2ec5-40ed-a2ba-a6d6e9a34912/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...