./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c -s /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 961c2aeb6a53bc095902951ff31f208c55ff3f20 ............................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c -s /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 961c2aeb6a53bc095902951ff31f208c55ff3f20 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:45:01,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:45:01,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:45:01,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:45:01,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:45:01,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:45:01,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:45:01,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:45:01,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:45:01,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:45:01,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:45:01,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:45:01,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:45:01,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:45:01,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:45:01,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:45:01,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:45:01,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:45:01,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:45:01,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:45:01,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:45:01,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:45:01,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:45:01,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:45:01,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:45:01,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:45:01,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:45:01,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:45:01,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:45:01,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:45:01,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:45:01,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:45:01,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:45:01,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:45:01,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:45:01,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:45:01,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:45:01,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:45:01,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:45:01,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:45:01,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:45:01,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:45:01,960 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:45:01,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:45:01,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:45:01,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:45:01,962 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:45:01,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:45:01,963 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:45:01,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:45:01,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:45:01,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:45:01,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:45:01,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:45:01,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:45:01,964 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:45:01,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:45:01,964 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:45:01,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:45:01,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:45:01,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:45:01,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:45:01,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:45:01,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:45:01,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:45:01,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:45:01,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:45:01,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:45:01,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:45:01,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:45:01,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_352f708a-9a60-43ff-a293-c6deb1c0e489/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(__VERIFIER_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 -> 961c2aeb6a53bc095902951ff31f208c55ff3f20 [2019-11-15 23:45:01,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:45:02,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:45:02,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:45:02,008 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:45:02,008 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:45:02,009 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c [2019-11-15 23:45:02,062 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data/e9cf6b262/fea73dc38e074e60b2f64400b7e9ef9b/FLAGe5e720a90 [2019-11-15 23:45:02,577 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:45:02,578 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/sv-benchmarks/c/float-newlib/double_req_bl_0874.c [2019-11-15 23:45:02,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data/e9cf6b262/fea73dc38e074e60b2f64400b7e9ef9b/FLAGe5e720a90 [2019-11-15 23:45:03,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data/e9cf6b262/fea73dc38e074e60b2f64400b7e9ef9b [2019-11-15 23:45:03,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:45:03,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:45:03,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:45:03,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:45:03,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:45:03,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:45:03" (1/1) ... [2019-11-15 23:45:03,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d74c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:03, skipping insertion in model container [2019-11-15 23:45:03,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:45:03" (1/1) ... [2019-11-15 23:45:03,051 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:45:03,111 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:45:03,458 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1593) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$35(StandardFunctionHandler.java:317) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:210) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1262) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1832) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1455) 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:906) 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.visit(CHandler.java:1432) 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:906) 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:1284) 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:3361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2176) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:540) 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:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:114) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:125) 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:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 23:45:03,463 INFO L168 Benchmark]: Toolchain (without parser) took 429.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:45:03,464 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:45:03,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:45:03,467 INFO L335 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 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 427.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 23:45:05,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:45:05,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:45:05,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:45:05,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:45:05,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:45:05,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:45:05,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:45:05,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:45:05,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:45:05,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:45:05,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:45:05,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:45:05,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:45:05,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:45:05,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:45:05,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:45:05,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:45:05,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:45:05,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:45:05,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:45:05,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:45:05,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:45:05,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:45:05,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:45:05,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:45:05,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:45:05,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:45:05,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:45:05,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:45:05,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:45:05,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:45:05,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:45:05,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:45:05,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:45:05,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:45:05,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:45:05,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:45:05,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:45:05,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:45:05,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:45:05,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:45:05,579 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:45:05,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:45:05,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:45:05,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:45:05,581 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:45:05,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:45:05,581 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:45:05,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:45:05,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:45:05,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:45:05,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:45:05,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:45:05,582 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:45:05,583 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:45:05,583 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:45:05,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:45:05,583 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:45:05,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:45:05,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:45:05,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:45:05,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:45:05,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:45:05,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:45:05,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:45:05,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:45:05,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:45:05,585 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:45:05,586 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:45:05,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:45:05,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:45:05,586 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_352f708a-9a60-43ff-a293-c6deb1c0e489/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(__VERIFIER_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 -> 961c2aeb6a53bc095902951ff31f208c55ff3f20 [2019-11-15 23:45:05,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:45:05,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:45:05,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:45:05,635 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:45:05,636 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:45:05,637 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0874.c [2019-11-15 23:45:05,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data/8a10148cd/7c64526f253b426cb6fdf5cd6d989f2f/FLAG602ef3307 [2019-11-15 23:45:06,193 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:45:06,193 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/sv-benchmarks/c/float-newlib/double_req_bl_0874.c [2019-11-15 23:45:06,205 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data/8a10148cd/7c64526f253b426cb6fdf5cd6d989f2f/FLAG602ef3307 [2019-11-15 23:45:06,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/data/8a10148cd/7c64526f253b426cb6fdf5cd6d989f2f [2019-11-15 23:45:06,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:45:06,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:45:06,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:45:06,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:45:06,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:45:06,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:45:06" (1/1) ... [2019-11-15 23:45:06,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6277e991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:06, skipping insertion in model container [2019-11-15 23:45:06,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:45:06" (1/1) ... [2019-11-15 23:45:06,574 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:45:06,611 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:45:07,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:45:07,113 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:45:07,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:45:07,290 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:45:07,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07 WrapperNode [2019-11-15 23:45:07,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:45:07,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:45:07,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:45:07,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:45:07,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... [2019-11-15 23:45:07,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... [2019-11-15 23:45:07,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:45:07,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:45:07,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:45:07,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:45:07,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... [2019-11-15 23:45:07,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... [2019-11-15 23:45:07,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... [2019-11-15 23:45:07,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... [2019-11-15 23:45:07,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... [2019-11-15 23:45:07,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... [2019-11-15 23:45:07,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... [2019-11-15 23:45:07,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:45:07,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:45:07,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:45:07,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:45:07,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/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 [2019-11-15 23:45:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 23:45:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 23:45:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:45:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 23:45:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:45:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:45:07,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:45:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:45:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:45:51,600 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:45:51,600 INFO L284 CfgBuilder]: Removed 98 assume(true) statements. [2019-11-15 23:45:51,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:45:51 BoogieIcfgContainer [2019-11-15 23:45:51,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:45:51,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:45:51,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:45:51,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:45:51,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:45:06" (1/3) ... [2019-11-15 23:45:51,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38abfd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:45:51, skipping insertion in model container [2019-11-15 23:45:51,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:07" (2/3) ... [2019-11-15 23:45:51,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38abfd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:45:51, skipping insertion in model container [2019-11-15 23:45:51,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:45:51" (3/3) ... [2019-11-15 23:45:51,609 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0874.c [2019-11-15 23:45:51,621 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:45:51,631 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:45:51,641 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:45:51,672 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:45:51,673 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:45:51,673 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:45:51,673 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:45:51,674 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:45:51,674 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:45:51,674 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:45:51,674 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:45:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states. [2019-11-15 23:45:51,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 23:45:51,708 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:45:51,709 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:45:51,711 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:45:51,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:45:51,717 INFO L82 PathProgramCache]: Analyzing trace with hash -264009365, now seen corresponding path program 1 times [2019-11-15 23:45:51,726 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:45:51,726 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604976551] [2019-11-15 23:45:51,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/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 [2019-11-15 23:45:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:45:51,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:45:51,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:45:51,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:45:51,954 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:45:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:45:51,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604976551] [2019-11-15 23:45:51,961 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:45:51,961 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:45:51,962 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946531649] [2019-11-15 23:45:51,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:45:51,966 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:45:51,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:45:51,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:45:51,978 INFO L87 Difference]: Start difference. First operand 222 states. Second operand 2 states. [2019-11-15 23:45:52,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:45:52,015 INFO L93 Difference]: Finished difference Result 442 states and 754 transitions. [2019-11-15 23:45:52,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:45:52,016 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-11-15 23:45:52,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:45:52,029 INFO L225 Difference]: With dead ends: 442 [2019-11-15 23:45:52,030 INFO L226 Difference]: Without dead ends: 218 [2019-11-15 23:45:52,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:45:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-11-15 23:45:52,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2019-11-15 23:45:52,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-11-15 23:45:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 296 transitions. [2019-11-15 23:45:52,084 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 296 transitions. Word has length 17 [2019-11-15 23:45:52,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:45:52,084 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 296 transitions. [2019-11-15 23:45:52,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:45:52,085 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 296 transitions. [2019-11-15 23:45:52,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 23:45:52,086 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:45:52,086 INFO L380 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] [2019-11-15 23:45:52,290 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:45:52,290 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:45:52,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:45:52,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1586530375, now seen corresponding path program 1 times [2019-11-15 23:45:52,291 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:45:52,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56473950] [2019-11-15 23:45:52,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/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 [2019-11-15 23:45:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:45:52,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:45:52,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:45:52,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:45:52,760 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:45:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:45:52,985 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56473950] [2019-11-15 23:45:52,985 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:45:52,985 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-15 23:45:52,985 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863256927] [2019-11-15 23:45:52,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 23:45:52,987 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:45:52,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 23:45:52,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:45:52,988 INFO L87 Difference]: Start difference. First operand 218 states and 296 transitions. Second operand 10 states. [2019-11-15 23:46:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:46:00,584 INFO L93 Difference]: Finished difference Result 351 states and 468 transitions. [2019-11-15 23:46:00,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:46:00,717 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-11-15 23:46:00,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:46:00,719 INFO L225 Difference]: With dead ends: 351 [2019-11-15 23:46:00,719 INFO L226 Difference]: Without dead ends: 152 [2019-11-15 23:46:00,722 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:46:00,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-15 23:46:00,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 144. [2019-11-15 23:46:00,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-15 23:46:00,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 177 transitions. [2019-11-15 23:46:00,734 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 177 transitions. Word has length 22 [2019-11-15 23:46:00,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:46:00,735 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 177 transitions. [2019-11-15 23:46:00,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 23:46:00,735 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 177 transitions. [2019-11-15 23:46:00,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 23:46:00,736 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:46:00,736 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:46:00,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:46:00,953 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:46:00,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:46:00,953 INFO L82 PathProgramCache]: Analyzing trace with hash 199776244, now seen corresponding path program 1 times [2019-11-15 23:46:00,954 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:46:00,954 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253055267] [2019-11-15 23:46:00,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 23:46:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:46:01,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-15 23:46:01,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:46:01,306 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2019-11-15 23:46:01,343 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2019-11-15 23:46:01,352 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:01,358 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:01,358 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:01,369 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:01,369 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:01,370 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:64, output treesize:34 [2019-11-15 23:46:04,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:46:04,459 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:46:15,410 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2019-11-15 23:46:15,429 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2019-11-15 23:46:15,429 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:15,432 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:15,432 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:15,447 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:15,448 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:15,448 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:73, output treesize:46 [2019-11-15 23:46:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:46:17,054 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253055267] [2019-11-15 23:46:17,054 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:46:17,054 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2019-11-15 23:46:17,054 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215025757] [2019-11-15 23:46:17,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-15 23:46:17,055 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:46:17,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-15 23:46:17,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=261, Unknown=2, NotChecked=0, Total=306 [2019-11-15 23:46:17,056 INFO L87 Difference]: Start difference. First operand 144 states and 177 transitions. Second operand 18 states. [2019-11-15 23:46:18,183 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-11-15 23:46:22,640 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-11-15 23:46:23,189 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-11-15 23:46:23,448 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-11-15 23:46:29,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:46:29,468 INFO L93 Difference]: Finished difference Result 161 states and 192 transitions. [2019-11-15 23:46:29,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:46:29,471 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 24 [2019-11-15 23:46:29,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:46:29,472 INFO L225 Difference]: With dead ends: 161 [2019-11-15 23:46:29,472 INFO L226 Difference]: Without dead ends: 61 [2019-11-15 23:46:29,473 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=140, Invalid=508, Unknown=2, NotChecked=0, Total=650 [2019-11-15 23:46:29,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-15 23:46:29,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2019-11-15 23:46:29,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-15 23:46:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2019-11-15 23:46:29,481 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 24 [2019-11-15 23:46:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:46:29,481 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2019-11-15 23:46:29,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-15 23:46:29,482 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2019-11-15 23:46:29,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 23:46:29,483 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:46:29,483 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:46:29,687 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:46:29,687 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:46:29,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:46:29,687 INFO L82 PathProgramCache]: Analyzing trace with hash -609570382, now seen corresponding path program 1 times [2019-11-15 23:46:29,688 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:46:29,688 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966962976] [2019-11-15 23:46:29,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-15 23:46:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:46:30,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-15 23:46:30,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:46:30,163 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2019-11-15 23:46:30,174 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2019-11-15 23:46:30,174 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:30,179 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:30,180 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:30,201 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:30,202 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:30,202 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:43 [2019-11-15 23:46:30,705 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2019-11-15 23:46:30,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:46:30,727 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2019-11-15 23:46:30,727 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:46:30,745 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:30,759 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:30,759 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2019-11-15 23:46:30,760 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-15 23:46:30,763 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:30,763 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:46:30,802 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:30,803 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:30,803 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:97, output treesize:69 [2019-11-15 23:46:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:46:31,008 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:46:31,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-15 23:46:31,225 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,225 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 39 [2019-11-15 23:46:31,240 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2019-11-15 23:46:31,241 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,249 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,250 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,294 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,294 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 47 [2019-11-15 23:46:31,332 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,333 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 33 [2019-11-15 23:46:31,333 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,351 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,364 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2019-11-15 23:46:31,365 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,374 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,374 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,409 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,409 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 60 [2019-11-15 23:46:31,440 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,441 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 37 [2019-11-15 23:46:31,441 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,463 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,479 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2019-11-15 23:46:31,479 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,492 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,492 INFO L496 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,507 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,508 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 39 [2019-11-15 23:46:31,518 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,519 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2019-11-15 23:46:31,519 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,528 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,528 INFO L496 ElimStorePlain]: Start of recursive call 10: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:46:31,575 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:31,576 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2019-11-15 23:46:31,576 INFO L221 ElimStorePlain]: Needed 11 recursive calls to eliminate 4 variables, input treesize:188, output treesize:77 [2019-11-15 23:46:31,715 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-15 23:46:32,358 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 69 [2019-11-15 23:46:32,374 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2019-11-15 23:46:32,374 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:32,414 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:32,415 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:32,491 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:32,500 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 65 [2019-11-15 23:46:32,514 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2019-11-15 23:46:32,514 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:32,542 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:32,542 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:46:32,633 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:46:32,634 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2019-11-15 23:46:32,634 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:147, output treesize:93 [2019-11-15 23:46:32,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:46:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:46:33,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966962976] [2019-11-15 23:46:33,212 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:46:33,213 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2019-11-15 23:46:33,213 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244790917] [2019-11-15 23:46:33,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-15 23:46:33,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:46:33,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-15 23:46:33,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2019-11-15 23:46:33,215 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 20 states. [2019-11-15 23:46:35,826 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2019-11-15 23:46:38,780 WARN L191 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2019-11-15 23:46:39,529 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2019-11-15 23:46:44,298 WARN L191 SmtUtils]: Spent 4.66 s on a formula simplification. DAG size of input: 109 DAG size of output: 92 [2019-11-15 23:46:44,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:46:44,576 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2019-11-15 23:46:44,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:46:44,577 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 24 [2019-11-15 23:46:44,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:46:44,578 INFO L225 Difference]: With dead ends: 61 [2019-11-15 23:46:44,578 INFO L226 Difference]: Without dead ends: 32 [2019-11-15 23:46:44,579 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2019-11-15 23:46:44,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-15 23:46:44,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-15 23:46:44,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-15 23:46:44,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-11-15 23:46:44,583 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 24 [2019-11-15 23:46:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:46:44,583 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-11-15 23:46:44,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-15 23:46:44,584 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-11-15 23:46:44,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 23:46:44,585 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:46:44,585 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:46:44,799 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 23:46:44,799 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:46:44,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:46:44,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1865467459, now seen corresponding path program 1 times [2019-11-15 23:46:44,800 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:46:44,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615928781] [2019-11-15 23:46:44,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_352f708a-9a60-43ff-a293-c6deb1c0e489/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-15 23:46:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:46:45,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-15 23:46:45,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:46:45,458 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 23:46:45,459 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 23:46:45,463 INFO L168 Benchmark]: Toolchain (without parser) took 98903.83 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 265.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -198.0 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:45,463 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:46:45,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -209.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:45,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:45,465 INFO L168 Benchmark]: Boogie Preprocessor took 106.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:45,465 INFO L168 Benchmark]: RCFGBuilder took 44104.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 122.9 MB). Peak memory consumption was 122.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:45,466 INFO L168 Benchmark]: TraceAbstraction took 53858.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 83.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -124.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:46:45,468 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 730.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -209.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 98.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 106.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 44104.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 122.9 MB). Peak memory consumption was 122.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 53858.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 83.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -124.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...