./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer --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 d17e00bd44b55018d16a0aa5f90810f5973068e1 .............................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer --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 d17e00bd44b55018d16a0aa5f90810f5973068e1 ............................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:47:16,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:47:16,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:47:16,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:47:16,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:47:16,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:47:16,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:47:16,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:47:16,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:47:16,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:47:16,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:47:16,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:47:16,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:47:16,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:47:16,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:47:16,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:47:16,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:47:16,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:47:16,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:47:16,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:47:16,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:47:16,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:47:16,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:47:16,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:47:16,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:47:16,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:47:16,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:47:16,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:47:16,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:47:16,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:47:16,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:47:16,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:47:16,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:47:16,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:47:16,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:47:16,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:47:16,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:47:16,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:47:16,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:47:16,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:47:16,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:47:16,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:47:16,800 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:47:16,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:47:16,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:47:16,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:47:16,803 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:47:16,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:47:16,804 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:47:16,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:47:16,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:47:16,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:47:16,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:47:16,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:47:16,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:47:16,806 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:47:16,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:47:16,807 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:47:16,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:47:16,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:47:16,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:47:16,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:47:16,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:47:16,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:47:16,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:47:16,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:47:16,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:47:16,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:47:16,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:47:16,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:47:16,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:47:16,810 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-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d17e00bd44b55018d16a0aa5f90810f5973068e1 [2020-11-30 00:47:17,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:47:17,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:47:17,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:47:17,114 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:47:17,115 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:47:17,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound2.i [2020-11-30 00:47:17,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data/32d5f30c7/6a2d6ecc5712490fafc3c21898733b62/FLAG043ebd6d7 [2020-11-30 00:47:17,728 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:47:17,732 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound2.i [2020-11-30 00:47:17,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data/32d5f30c7/6a2d6ecc5712490fafc3c21898733b62/FLAG043ebd6d7 [2020-11-30 00:47:18,064 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data/32d5f30c7/6a2d6ecc5712490fafc3c21898733b62 [2020-11-30 00:47:18,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:47:18,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:47:18,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:47:18,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:47:18,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:47:18,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:47:18" (1/1) ... [2020-11-30 00:47:18,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f17db3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:18, skipping insertion in model container [2020-11-30 00:47:18,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:47:18" (1/1) ... [2020-11-30 00:47:18,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:47:18,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:47:18,308 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: sqrt 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:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) 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:706) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1352) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) 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:1423) 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:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-30 00:47:18,314 INFO L168 Benchmark]: Toolchain (without parser) took 243.06 ms. Allocated memory is still 81.8 MB. Free memory was 49.3 MB in the beginning and 61.3 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:18,317 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 81.8 MB. Free memory was 54.6 MB in the beginning and 54.6 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:47:18,319 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.99 ms. Allocated memory is still 81.8 MB. Free memory was 49.1 MB in the beginning and 61.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:18,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 81.8 MB. Free memory was 54.6 MB in the beginning and 54.6 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.99 ms. Allocated memory is still 81.8 MB. Free memory was 49.1 MB in the beginning and 61.3 MB in the end (delta: -12.2 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: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:47:20,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:47:20,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:47:20,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:47:20,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:47:20,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:47:20,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:47:20,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:47:20,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:47:20,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:47:20,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:47:20,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:47:20,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:47:20,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:47:20,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:47:20,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:47:20,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:47:20,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:47:20,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:47:20,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:47:20,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:47:20,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:47:20,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:47:20,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:47:20,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:47:20,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:47:20,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:47:20,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:47:20,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:47:20,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:47:20,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:47:20,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:47:20,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:47:20,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:47:20,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:47:20,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:47:20,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:47:20,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:47:20,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:47:20,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:47:20,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:47:20,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:47:20,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:47:20,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:47:20,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:47:20,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:47:20,859 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:47:20,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:47:20,860 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:47:20,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:47:20,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:47:20,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:47:20,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:47:20,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:47:20,862 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:47:20,862 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:47:20,863 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:47:20,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:47:20,863 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:47:20,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:47:20,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:47:20,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:47:20,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:47:20,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:47:20,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:47:20,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:47:20,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:47:20,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:47:20,865 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:47:20,865 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:47:20,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:47:20,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:47:20,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:47:20,866 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d17e00bd44b55018d16a0aa5f90810f5973068e1 [2020-11-30 00:47:21,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:47:21,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:47:21,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:47:21,359 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:47:21,367 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:47:21,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound2.i [2020-11-30 00:47:21,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data/8a8386048/4251596e670f4a6884538bd9ef4eb57d/FLAG1477de73f [2020-11-30 00:47:21,965 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:47:21,971 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound2.i [2020-11-30 00:47:21,981 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data/8a8386048/4251596e670f4a6884538bd9ef4eb57d/FLAG1477de73f [2020-11-30 00:47:22,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/data/8a8386048/4251596e670f4a6884538bd9ef4eb57d [2020-11-30 00:47:22,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:47:22,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:47:22,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:47:22,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:47:22,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:47:22,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63faae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22, skipping insertion in model container [2020-11-30 00:47:22,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:47:22,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:47:22,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:47:22,745 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:47:22,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:47:22,825 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:47:22,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22 WrapperNode [2020-11-30 00:47:22,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:47:22,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:47:22,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:47:22,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:47:22,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:47:22,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:47:22,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:47:22,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:47:22,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... [2020-11-30 00:47:22,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:47:22,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:47:22,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:47:22,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:47:22,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:47:23,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:47:23,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:47:23,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:47:23,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:47:26,682 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:47:26,684 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-11-30 00:47:26,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:47:26 BoogieIcfgContainer [2020-11-30 00:47:26,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:47:26,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:47:26,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:47:26,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:47:26,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:47:22" (1/3) ... [2020-11-30 00:47:26,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aaef266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:47:26, skipping insertion in model container [2020-11-30 00:47:26,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:22" (2/3) ... [2020-11-30 00:47:26,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aaef266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:47:26, skipping insertion in model container [2020-11-30 00:47:26,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:47:26" (3/3) ... [2020-11-30 00:47:26,699 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound2.i [2020-11-30 00:47:26,710 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:47:26,715 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-30 00:47:26,727 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-30 00:47:26,763 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:47:26,763 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:47:26,764 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:47:26,764 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:47:26,764 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:47:26,768 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:47:26,768 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:47:26,769 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:47:26,781 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-30 00:47:26,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:47:26,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:47:26,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:26,786 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:47:26,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:26,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1115236137, now seen corresponding path program 1 times [2020-11-30 00:47:26,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:47:26,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770065850] [2020-11-30 00:47:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:47:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:47:27,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:47:27,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:47:27,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:27,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:47:27,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:27,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770065850] [2020-11-30 00:47:27,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:47:27,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:47:27,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6240940] [2020-11-30 00:47:27,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:47:27,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:47:27,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:47:27,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:47:27,373 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-11-30 00:47:27,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:27,398 INFO L93 Difference]: Finished difference Result 81 states and 114 transitions. [2020-11-30 00:47:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:47:27,399 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-11-30 00:47:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:27,409 INFO L225 Difference]: With dead ends: 81 [2020-11-30 00:47:27,409 INFO L226 Difference]: Without dead ends: 38 [2020-11-30 00:47:27,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:47:27,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-30 00:47:27,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-30 00:47:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-30 00:47:27,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-11-30 00:47:27,452 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 15 [2020-11-30 00:47:27,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:27,453 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-11-30 00:47:27,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:47:27,453 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-11-30 00:47:27,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:47:27,454 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:47:27,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:27,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:47:27,655 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:47:27,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:27,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1454088159, now seen corresponding path program 1 times [2020-11-30 00:47:27,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:47:27,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420165389] [2020-11-30 00:47:27,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 00:47:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:47:27,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:47:27,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:47:28,072 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:47:28,085 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:47:28,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:28,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:47:28,111 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:47:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:28,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420165389] [2020-11-30 00:47:28,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:47:28,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2020-11-30 00:47:28,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822520433] [2020-11-30 00:47:28,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:47:28,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:47:28,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:47:28,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:47:28,162 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 6 states. [2020-11-30 00:47:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:28,261 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-11-30 00:47:28,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:47:28,261 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-30 00:47:28,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:28,262 INFO L225 Difference]: With dead ends: 38 [2020-11-30 00:47:28,262 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:47:28,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:47:28,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:47:28,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:47:28,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:47:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:47:28,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-30 00:47:28,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:28,264 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:47:28,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:47:28,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:47:28,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:47:28,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:47:28,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:47:28,531 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,531 INFO L274 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-11-30 00:47:28,532 INFO L270 CegarLoopResult]: At program point L19-1(lines 18 24) the Hoare annotation is: false [2020-11-30 00:47:28,532 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2020-11-30 00:47:28,532 INFO L270 CegarLoopResult]: At program point L19-3(lines 18 24) the Hoare annotation is: false [2020-11-30 00:47:28,532 INFO L274 CegarLoopResult]: For program point L19-4(lines 19 22) no Hoare annotation was computed. [2020-11-30 00:47:28,532 INFO L270 CegarLoopResult]: At program point L19-5(lines 18 24) the Hoare annotation is: false [2020-11-30 00:47:28,532 INFO L274 CegarLoopResult]: For program point L19-6(lines 19 22) no Hoare annotation was computed. [2020-11-30 00:47:28,532 INFO L270 CegarLoopResult]: At program point L19-7(line 46) the Hoare annotation is: false [2020-11-30 00:47:28,532 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:47:28,532 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:47:28,532 INFO L274 CegarLoopResult]: For program point L53(lines 53 70) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 21) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L20-2(lines 20 21) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L20-3(lines 20 21) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L12-8(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L12-10(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L12-12(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,533 INFO L274 CegarLoopResult]: For program point L12-14(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point L47(lines 47 70) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L277 CegarLoopResult]: At program point L72(lines 26 73) the Hoare annotation is: true [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point L15-1(lines 15 17) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point L15-3(lines 15 17) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-30 00:47:28,534 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-30 00:47:28,535 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-11-30 00:47:28,535 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-11-30 00:47:28,535 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 71) no Hoare annotation was computed. [2020-11-30 00:47:28,535 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:47:28,535 INFO L274 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2020-11-30 00:47:28,541 INFO L270 CegarLoopResult]: At program point L58-2(lines 41 71) the Hoare annotation is: false [2020-11-30 00:47:28,541 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:47:28,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:47:28 BoogieIcfgContainer [2020-11-30 00:47:28,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:47:28,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:47:28,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:47:28,553 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:47:28,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:47:26" (3/4) ... [2020-11-30 00:47:28,557 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:47:28,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 00:47:28,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:47:28,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:47:28,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:47:28,630 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d62bdd49-d356-4cff-a449-8de8adfd7803/bin/uautomizer/witness.graphml [2020-11-30 00:47:28,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:47:28,632 INFO L168 Benchmark]: Toolchain (without parser) took 6287.00 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 37.8 MB in the beginning and 63.7 MB in the end (delta: -25.9 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:28,632 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 41.2 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:47:28,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.05 ms. Allocated memory is still 58.7 MB. Free memory was 37.7 MB in the beginning and 40.5 MB in the end (delta: -2.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:28,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.24 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 38.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:28,634 INFO L168 Benchmark]: Boogie Preprocessor took 94.84 ms. Allocated memory is still 58.7 MB. Free memory was 38.8 MB in the beginning and 37.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:28,634 INFO L168 Benchmark]: RCFGBuilder took 3703.25 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 37.0 MB in the beginning and 60.9 MB in the end (delta: -23.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:28,635 INFO L168 Benchmark]: TraceAbstraction took 1860.98 ms. Allocated memory is still 86.0 MB. Free memory was 60.6 MB in the beginning and 67.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:28,635 INFO L168 Benchmark]: Witness Printer took 76.93 ms. Allocated memory is still 86.0 MB. Free memory was 67.9 MB in the beginning and 63.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:28,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 41.2 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 478.05 ms. Allocated memory is still 58.7 MB. Free memory was 37.7 MB in the beginning and 40.5 MB in the end (delta: -2.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.24 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 38.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.84 ms. Allocated memory is still 58.7 MB. Free memory was 38.8 MB in the beginning and 37.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3703.25 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 37.0 MB in the beginning and 60.9 MB in the end (delta: -23.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1860.98 ms. Allocated memory is still 86.0 MB. Free memory was 60.6 MB in the beginning and 67.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. * Witness Printer took 76.93 ms. Allocated memory is still 86.0 MB. Free memory was 67.9 MB in the beginning and 63.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 16 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 7 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 1302 SizeOfPredicates, 4 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...