./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e9201cae23fc7cbf1af50183e9486b54bc56d6e ............................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e9201cae23fc7cbf1af50183e9486b54bc56d6e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:16:20,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:16:20,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:16:20,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:16:20,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:16:20,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:16:20,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:16:20,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:16:20,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:16:20,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:16:20,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:16:20,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:16:20,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:16:20,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:16:20,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:16:20,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:16:20,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:16:20,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:16:20,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:16:20,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:16:20,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:16:20,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:16:20,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:16:20,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:16:20,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:16:20,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:16:20,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:16:20,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:16:20,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:16:20,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:16:20,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:16:20,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:16:20,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:16:20,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:16:20,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:16:20,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:16:20,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:16:20,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:16:20,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:16:20,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:16:20,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:16:20,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 18:16:20,986 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:16:20,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:16:20,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:16:20,987 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:16:20,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:16:20,987 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:16:20,987 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:16:20,987 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:16:20,987 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:16:20,988 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:16:20,988 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:16:20,988 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:16:20,991 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:16:20,991 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:16:20,991 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:16:20,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:16:20,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:16:20,993 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:16:20,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:16:20,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:16:20,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:16:20,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:16:20,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:16:20,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:16:20,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:16:20,994 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:16:20,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:16:20,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:16:20,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:16:20,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:16:20,994 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e9201cae23fc7cbf1af50183e9486b54bc56d6e [2020-12-09 18:16:21,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:16:21,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:16:21,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:16:21,183 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:16:21,183 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:16:21,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2020-12-09 18:16:21,231 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data/bbd688e96/ddc10f90355c4cfa865b770db9dcba99/FLAGf80276127 [2020-12-09 18:16:21,645 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:16:21,645 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2020-12-09 18:16:21,653 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data/bbd688e96/ddc10f90355c4cfa865b770db9dcba99/FLAGf80276127 [2020-12-09 18:16:21,662 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data/bbd688e96/ddc10f90355c4cfa865b770db9dcba99 [2020-12-09 18:16:21,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:16:21,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:16:21,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:16:21,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:16:21,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:16:21,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:16:21" (1/1) ... [2020-12-09 18:16:21,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605c39d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:21, skipping insertion in model container [2020-12-09 18:16:21,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:16:21" (1/1) ... [2020-12-09 18:16:21,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:16:21,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:16:21,842 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.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1702) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$41(StandardFunctionHandler.java:358) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) 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:1972) 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:1601) 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:1046) 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:1578) 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:1046) 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:1424) 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:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 18:16:21,846 INFO L168 Benchmark]: Toolchain (without parser) took 181.05 ms. Allocated memory is still 109.1 MB. Free memory was 87.1 MB in the beginning and 75.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:16:21,847 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 73.4 MB. Free memory was 44.8 MB in the beginning and 44.8 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:16:21,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.71 ms. Allocated memory is still 109.1 MB. Free memory was 87.1 MB in the beginning and 75.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:16:21,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 73.4 MB. Free memory was 44.8 MB in the beginning and 44.8 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 179.71 ms. Allocated memory is still 109.1 MB. Free memory was 87.1 MB in the beginning and 75.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 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 0.2.0-7b2dab5 [2020-12-09 18:16:23,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:16:23,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:16:23,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:16:23,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:16:23,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:16:23,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:16:23,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:16:23,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:16:23,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:16:23,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:16:23,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:16:23,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:16:23,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:16:23,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:16:23,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:16:23,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:16:23,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:16:23,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:16:23,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:16:23,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:16:23,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:16:23,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:16:23,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:16:23,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:16:23,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:16:23,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:16:23,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:16:23,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:16:23,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:16:23,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:16:23,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:16:23,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:16:23,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:16:23,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:16:23,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:16:23,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:16:23,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:16:23,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:16:23,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:16:23,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:16:23,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 18:16:23,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:16:23,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:16:23,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:16:23,267 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:16:23,267 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:16:23,267 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:16:23,267 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:16:23,267 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:16:23,267 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:16:23,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:16:23,268 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:16:23,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:16:23,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:16:23,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:16:23,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:16:23,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:16:23,269 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:16:23,270 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:16:23,270 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:16:23,270 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:16:23,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:16:23,270 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:16:23,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:16:23,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:16:23,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:16:23,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:16:23,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:16:23,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:16:23,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:16:23,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:16:23,271 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:16:23,272 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:16:23,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:16:23,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:16:23,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:16:23,272 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e9201cae23fc7cbf1af50183e9486b54bc56d6e [2020-12-09 18:16:23,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:16:23,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:16:23,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:16:23,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:16:23,521 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:16:23,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2020-12-09 18:16:23,570 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data/895d222b7/57dcd863c9fe4963ab64525892a0dc05/FLAG4a44dbd23 [2020-12-09 18:16:23,999 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:16:23,999 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2020-12-09 18:16:24,007 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data/895d222b7/57dcd863c9fe4963ab64525892a0dc05/FLAG4a44dbd23 [2020-12-09 18:16:24,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/data/895d222b7/57dcd863c9fe4963ab64525892a0dc05 [2020-12-09 18:16:24,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:16:24,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:16:24,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:16:24,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:16:24,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:16:24,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9b111a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24, skipping insertion in model container [2020-12-09 18:16:24,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:16:24,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:16:24,298 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/sv-benchmarks/c/float-newlib/double_req_bl_0882.c[14275,14288] [2020-12-09 18:16:24,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:16:24,313 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:16:24,397 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/sv-benchmarks/c/float-newlib/double_req_bl_0882.c[14275,14288] [2020-12-09 18:16:24,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:16:24,420 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:16:24,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24 WrapperNode [2020-12-09 18:16:24,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:16:24,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:16:24,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:16:24,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:16:24,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:16:24,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:16:24,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:16:24,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:16:24,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... [2020-12-09 18:16:24,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:16:24,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:16:24,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:16:24,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:16:24,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:16:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 18:16:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 18:16:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 18:16:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:16:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-09 18:16:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 18:16:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:16:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:16:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 18:16:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 18:17:44,066 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:17:44,066 INFO L299 CfgBuilder]: Removed 92 assume(true) statements. [2020-12-09 18:17:44,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:44 BoogieIcfgContainer [2020-12-09 18:17:44,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:17:44,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:17:44,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:17:44,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:17:44,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:16:24" (1/3) ... [2020-12-09 18:17:44,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63953955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:44, skipping insertion in model container [2020-12-09 18:17:44,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:16:24" (2/3) ... [2020-12-09 18:17:44,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63953955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:44, skipping insertion in model container [2020-12-09 18:17:44,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:44" (3/3) ... [2020-12-09 18:17:44,075 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0882.c [2020-12-09 18:17:44,086 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:17:44,089 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 18:17:44,098 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 18:17:44,120 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:17:44,120 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:17:44,120 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:17:44,120 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:17:44,120 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:17:44,120 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:17:44,120 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:17:44,121 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:17:44,133 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states. [2020-12-09 18:17:44,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 18:17:44,137 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:17:44,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:17:44,138 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:17:44,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:17:44,142 INFO L82 PathProgramCache]: Analyzing trace with hash 484722149, now seen corresponding path program 1 times [2020-12-09 18:17:44,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:17:44,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806628745] [2020-12-09 18:17:44,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 18:17:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:17:44,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 18:17:44,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:17:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:17:44,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:17:44,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806628745] [2020-12-09 18:17:44,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:17:44,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:17:44,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533295727] [2020-12-09 18:17:44,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 18:17:44,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:17:44,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 18:17:44,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:17:44,438 INFO L87 Difference]: Start difference. First operand 217 states. Second operand 2 states. [2020-12-09 18:17:44,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:17:44,473 INFO L93 Difference]: Finished difference Result 431 states and 736 transitions. [2020-12-09 18:17:44,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 18:17:44,474 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-09 18:17:44,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:17:44,483 INFO L225 Difference]: With dead ends: 431 [2020-12-09 18:17:44,483 INFO L226 Difference]: Without dead ends: 213 [2020-12-09 18:17:44,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:17:44,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-12-09 18:17:44,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2020-12-09 18:17:44,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-12-09 18:17:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 292 transitions. [2020-12-09 18:17:44,527 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 292 transitions. Word has length 11 [2020-12-09 18:17:44,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:17:44,528 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 292 transitions. [2020-12-09 18:17:44,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 18:17:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 292 transitions. [2020-12-09 18:17:44,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 18:17:44,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:17:44,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:17:44,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 18:17:44,730 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:17:44,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:17:44,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1071825986, now seen corresponding path program 1 times [2020-12-09 18:17:44,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:17:44,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946839733] [2020-12-09 18:17:44,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 18:17:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:17:45,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 18:17:45,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:17:45,389 INFO L382 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 15 treesize of output 13 [2020-12-09 18:17:45,451 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 18:17:45,514 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:17:45,515 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 18:17:45,744 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 18:17:45,744 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:17:45,746 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 18:17:45,746 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:18 [2020-12-09 18:17:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:17:50,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:17:50,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946839733] [2020-12-09 18:17:50,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:17:50,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 18:17:50,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891229247] [2020-12-09 18:17:50,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:17:50,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:17:50,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:17:50,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=11, Unknown=2, NotChecked=0, Total=20 [2020-12-09 18:17:50,207 INFO L87 Difference]: Start difference. First operand 213 states and 292 transitions. Second operand 5 states. [2020-12-09 18:17:54,739 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 18:18:03,165 WARN L197 SmtUtils]: Spent 4.21 s on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 18:18:16,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:16,691 INFO L93 Difference]: Finished difference Result 366 states and 483 transitions. [2020-12-09 18:18:16,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 18:18:16,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-09 18:18:16,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:16,822 INFO L225 Difference]: With dead ends: 366 [2020-12-09 18:18:16,822 INFO L226 Difference]: Without dead ends: 181 [2020-12-09 18:18:16,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=17, Invalid=21, Unknown=4, NotChecked=0, Total=42 [2020-12-09 18:18:16,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-12-09 18:18:16,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2020-12-09 18:18:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-09 18:18:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 219 transitions. [2020-12-09 18:18:16,848 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 219 transitions. Word has length 13 [2020-12-09 18:18:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:16,848 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 219 transitions. [2020-12-09 18:18:16,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:18:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 219 transitions. [2020-12-09 18:18:16,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 18:18:16,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:16,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:17,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 18:18:17,051 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:17,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:17,054 INFO L82 PathProgramCache]: Analyzing trace with hash 754691751, now seen corresponding path program 1 times [2020-12-09 18:18:17,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:18:17,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973271302] [2020-12-09 18:18:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/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 [2020-12-09 18:18:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:17,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 18:18:17,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:18:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:18:18,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:18:18,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973271302] [2020-12-09 18:18:18,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:18:18,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 18:18:18,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926988061] [2020-12-09 18:18:18,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 18:18:18,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:18:18,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 18:18:18,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 18:18:18,276 INFO L87 Difference]: Start difference. First operand 172 states and 219 transitions. Second operand 6 states. [2020-12-09 18:18:18,688 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 18:18:19,202 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 18:18:19,691 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 18:18:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:24,930 INFO L93 Difference]: Finished difference Result 322 states and 405 transitions. [2020-12-09 18:18:24,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 18:18:24,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-09 18:18:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:24,934 INFO L225 Difference]: With dead ends: 322 [2020-12-09 18:18:24,934 INFO L226 Difference]: Without dead ends: 162 [2020-12-09 18:18:24,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 18:18:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-09 18:18:24,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 153. [2020-12-09 18:18:24,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-12-09 18:18:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 179 transitions. [2020-12-09 18:18:24,949 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 179 transitions. Word has length 15 [2020-12-09 18:18:24,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:24,950 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 179 transitions. [2020-12-09 18:18:24,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 18:18:24,950 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 179 transitions. [2020-12-09 18:18:24,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 18:18:24,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:24,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:25,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 18:18:25,152 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:25,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:25,153 INFO L82 PathProgramCache]: Analyzing trace with hash 756538793, now seen corresponding path program 1 times [2020-12-09 18:18:25,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:18:25,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508784775] [2020-12-09 18:18:25,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/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 [2020-12-09 18:18:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:25,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 18:18:25,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:18:25,945 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-09 18:18:26,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 18:18:26,272 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-09 18:18:26,275 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 18:18:26,735 WARN L197 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 18:18:26,736 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:18:26,742 INFO L547 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. [2020-12-09 18:18:26,742 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:48, output treesize:48 [2020-12-09 18:18:27,139 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 18:18:27,449 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:18:27,450 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:18:27,450 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 44 [2020-12-09 18:18:27,455 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:18:27,458 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 18:18:27,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 18:18:27,499 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_3], 2=[v_arrayElimCell_2]} [2020-12-09 18:18:28,100 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:18:28,101 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:18:28,101 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 44 [2020-12-09 18:18:28,103 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:18:28,105 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 18:18:28,106 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 18:18:28,133 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_5], 2=[v_arrayElimCell_4]} [2020-12-09 18:18:28,430 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:18:28,430 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:18:28,431 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2020-12-09 18:18:28,437 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:18:28,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 18:18:28,440 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 18:18:28,472 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_7], 2=[v_arrayElimCell_6]} [2020-12-09 18:18:29,212 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:18:29,213 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:18:29,214 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2020-12-09 18:18:29,217 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:18:29,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 18:18:29,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 18:18:29,252 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_9], 2=[v_arrayElimCell_8]} [2020-12-09 18:18:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:18:29,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:18:29,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508784775] [2020-12-09 18:18:29,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:18:29,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 18:18:29,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557447555] [2020-12-09 18:18:29,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 18:18:29,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:18:29,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 18:18:29,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:18:29,313 INFO L87 Difference]: Start difference. First operand 153 states and 179 transitions. Second operand 7 states. [2020-12-09 18:18:29,884 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 18:18:30,463 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-09 18:18:31,229 WARN L197 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-09 18:18:31,946 WARN L197 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-09 18:18:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:40,209 INFO L93 Difference]: Finished difference Result 171 states and 197 transitions. [2020-12-09 18:18:40,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 18:18:40,210 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-09 18:18:40,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:40,211 INFO L225 Difference]: With dead ends: 171 [2020-12-09 18:18:40,211 INFO L226 Difference]: Without dead ends: 51 [2020-12-09 18:18:40,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-09 18:18:40,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-09 18:18:40,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 42. [2020-12-09 18:18:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-09 18:18:40,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2020-12-09 18:18:40,218 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 15 [2020-12-09 18:18:40,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:40,218 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2020-12-09 18:18:40,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 18:18:40,219 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2020-12-09 18:18:40,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 18:18:40,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:40,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:40,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 18:18:40,421 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:40,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:40,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1368879435, now seen corresponding path program 1 times [2020-12-09 18:18:40,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:18:40,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230342811] [2020-12-09 18:18:40,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/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 [2020-12-09 18:18:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:41,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 18:18:41,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:18:41,765 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 18:18:42,161 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 18:18:42,577 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 18:18:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:18:43,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:18:43,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230342811] [2020-12-09 18:18:43,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:18:43,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 18:18:43,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981160809] [2020-12-09 18:18:43,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 18:18:43,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:18:43,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 18:18:43,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:18:43,032 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 7 states. [2020-12-09 18:18:43,791 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 18:18:47,267 WARN L197 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 18:18:47,767 WARN L197 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-09 18:18:48,384 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 18:18:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:51,580 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-12-09 18:18:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 18:18:51,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-09 18:18:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:51,582 INFO L225 Difference]: With dead ends: 63 [2020-12-09 18:18:51,582 INFO L226 Difference]: Without dead ends: 60 [2020-12-09 18:18:51,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-12-09 18:18:51,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-09 18:18:51,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 44. [2020-12-09 18:18:51,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 18:18:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-12-09 18:18:51,592 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 19 [2020-12-09 18:18:51,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:51,593 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-12-09 18:18:51,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 18:18:51,593 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-12-09 18:18:51,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 18:18:51,594 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:51,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:51,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 18:18:51,796 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:51,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:51,797 INFO L82 PathProgramCache]: Analyzing trace with hash -319058285, now seen corresponding path program 1 times [2020-12-09 18:18:51,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:18:51,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140893502] [2020-12-09 18:18:51,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 18:18:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:52,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 18:18:52,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:18:53,143 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 1 [2020-12-09 18:18:53,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:18:53,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:18:53,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140893502] [2020-12-09 18:18:53,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:18:53,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 18:18:53,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638458267] [2020-12-09 18:18:53,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 18:18:53,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:18:53,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 18:18:53,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 18:18:53,152 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 6 states. [2020-12-09 18:18:57,025 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-09 18:18:57,344 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-12-09 18:18:57,753 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-09 18:18:58,165 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-09 18:18:58,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:58,520 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2020-12-09 18:18:58,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 18:18:58,521 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-09 18:18:58,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:58,521 INFO L225 Difference]: With dead ends: 56 [2020-12-09 18:18:58,521 INFO L226 Difference]: Without dead ends: 53 [2020-12-09 18:18:58,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-09 18:18:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-09 18:18:58,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2020-12-09 18:18:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 18:18:58,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-12-09 18:18:58,527 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 21 [2020-12-09 18:18:58,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:58,527 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-12-09 18:18:58,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 18:18:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-12-09 18:18:58,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 18:18:58,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:58,528 INFO L422 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] [2020-12-09 18:18:58,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 18:18:58,729 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:58,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:58,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1262256800, now seen corresponding path program 1 times [2020-12-09 18:18:58,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:18:58,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936959126] [2020-12-09 18:18:58,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 18:18:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:59,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 18:18:59,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:19:00,080 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 18:19:00,447 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 18:19:00,890 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 18:19:01,384 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 18:19:01,950 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 18:19:02,958 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-09 18:19:02,968 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:04,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:19:04,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:19:04,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936959126] [2020-12-09 18:19:04,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:19:04,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-09 18:19:04,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026973295] [2020-12-09 18:19:04,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 18:19:04,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:19:04,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 18:19:04,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-12-09 18:19:04,642 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 11 states. [2020-12-09 18:19:06,004 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 18:19:11,508 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 18:19:12,441 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 18:19:13,432 WARN L197 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 18:19:14,535 WARN L197 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-09 18:19:15,373 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 18:19:16,368 WARN L197 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-09 18:19:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:19:19,727 INFO L93 Difference]: Finished difference Result 60 states and 61 transitions. [2020-12-09 18:19:19,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-09 18:19:19,728 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2020-12-09 18:19:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:19:19,729 INFO L225 Difference]: With dead ends: 60 [2020-12-09 18:19:19,729 INFO L226 Difference]: Without dead ends: 50 [2020-12-09 18:19:19,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2020-12-09 18:19:19,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-09 18:19:19,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2020-12-09 18:19:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-12-09 18:19:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2020-12-09 18:19:19,738 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 23 [2020-12-09 18:19:19,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:19:19,738 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2020-12-09 18:19:19,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 18:19:19,738 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-12-09 18:19:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 18:19:19,739 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:19:19,739 INFO L422 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] [2020-12-09 18:19:19,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 18:19:19,941 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:19:19,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:19:19,942 INFO L82 PathProgramCache]: Analyzing trace with hash 826325992, now seen corresponding path program 1 times [2020-12-09 18:19:19,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:19:19,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405269613] [2020-12-09 18:19:19,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 18:19:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:19:20,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 18:19:20,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:19:22,046 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 18:19:22,055 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:19:23,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:19:23,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405269613] [2020-12-09 18:19:23,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:19:23,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 18:19:23,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752112069] [2020-12-09 18:19:23,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 18:19:23,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:19:23,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 18:19:23,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-09 18:19:23,346 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 10 states. [2020-12-09 18:19:24,463 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-09 18:19:25,150 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-09 18:19:25,816 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 18:19:26,433 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-09 18:19:27,083 WARN L197 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 18:19:27,724 WARN L197 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 18:19:28,494 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-12-09 18:19:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:19:28,746 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-12-09 18:19:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 18:19:28,747 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2020-12-09 18:19:28,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:19:28,748 INFO L225 Difference]: With dead ends: 50 [2020-12-09 18:19:28,748 INFO L226 Difference]: Without dead ends: 37 [2020-12-09 18:19:28,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-12-09 18:19:28,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-09 18:19:28,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-09 18:19:28,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-09 18:19:28,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-12-09 18:19:28,755 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 25 [2020-12-09 18:19:28,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:19:28,755 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-12-09 18:19:28,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 18:19:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-12-09 18:19:28,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 18:19:28,757 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:19:28,757 INFO L422 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] [2020-12-09 18:19:28,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-09 18:19:28,958 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:19:28,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:19:28,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1611916476, now seen corresponding path program 1 times [2020-12-09 18:19:28,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:19:28,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96835237] [2020-12-09 18:19:28,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 18:19:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:19:30,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-09 18:19:30,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:19:30,968 WARN L197 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 18:19:31,328 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 18:19:31,953 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 18:19:32,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 18:19:32,263 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-09 18:19:32,264 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 18:19:32,722 WARN L197 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 18:19:32,723 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:32,726 INFO L547 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. [2020-12-09 18:19:32,726 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:46 [2020-12-09 18:19:33,270 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 18:19:33,572 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:19:33,573 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:33,573 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 87 [2020-12-09 18:19:33,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:33,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:19:33,612 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_11], 2=[v_arrayElimCell_10]} [2020-12-09 18:19:34,299 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-09 18:19:34,593 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:19:34,594 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:34,595 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 87 [2020-12-09 18:19:34,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:34,598 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:19:34,630 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_13], 2=[v_arrayElimCell_12]} [2020-12-09 18:19:34,912 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:19:34,913 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:34,914 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 87 [2020-12-09 18:19:34,916 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:34,917 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:19:34,952 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_15], 2=[v_arrayElimCell_14]} [2020-12-09 18:19:35,481 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-09 18:19:35,734 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:19:35,734 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:35,735 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 87 [2020-12-09 18:19:35,737 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:35,738 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:19:35,774 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_17], 2=[v_arrayElimCell_16]} [2020-12-09 18:19:36,455 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-09 18:19:36,750 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:19:36,751 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:36,751 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 87 [2020-12-09 18:19:36,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:36,755 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:19:36,788 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_19], 2=[v_arrayElimCell_18]} [2020-12-09 18:19:37,108 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:19:37,109 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:37,109 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 87 [2020-12-09 18:19:37,111 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:37,112 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:19:37,146 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_21], 2=[v_arrayElimCell_20]} [2020-12-09 18:19:37,923 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-09 18:19:38,178 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:19:38,178 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:38,179 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 92 [2020-12-09 18:19:38,180 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:38,181 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:19:38,216 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_23], 2=[v_arrayElimCell_22]} [2020-12-09 18:19:42,582 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_fabs_double_~#sh_u~3.base_5| (_ BitVec 32)) (|v_ULTIMATE.start_fabs_double_~#gh_u~3.base_5| (_ BitVec 32)) (|v_#memory_int_118| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32)))) (|v_skolemized_q#valueAsBitvector_76| (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_77| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (let ((.cse5 (select |v_#memory_int_118| |v_ULTIMATE.start_fabs_double_~#gh_u~3.base_5|))) (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (.cse4 (select .cse5 (_ bv4 32))) (.cse1 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_76|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_76|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_76|)))) (and (= (fp.div currentRoundingMode .cse0 (_ +zero 11 53)) .cse1) (= c_ULTIMATE.start___ieee754_pow_~z~1 (fp.div currentRoundingMode .cse0 (let ((.cse2 (let ((.cse3 (bvand (_ bv2147483647 32) .cse4))) (concat .cse3 (select (store (store (select |v_#memory_int_118| |v_ULTIMATE.start_fabs_double_~#sh_u~3.base_5|) (_ bv0 32) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_77|)) (_ bv4 32) .cse3) (_ bv0 32)))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (= .cse4 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_76|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_77|)) .cse1) (= (select .cse5 (_ bv0 32)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_76|)))))) is different from true [2020-12-09 18:19:42,864 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:19:42,864 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:42,865 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 92 [2020-12-09 18:19:42,867 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:42,868 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:19:42,903 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_25], 2=[v_arrayElimCell_24]} [2020-12-09 18:19:43,218 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:19:43,219 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:19:43,219 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 92 [2020-12-09 18:19:43,222 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:43,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:19:43,255 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_27], 2=[v_arrayElimCell_26]} [2020-12-09 18:19:45,797 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_fabs_double_~#sh_u~3.base_5| (_ BitVec 32)) (|v_ULTIMATE.start_fabs_double_~#gh_u~3.base_5| (_ BitVec 32)) (|v_#memory_int_118| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32)))) (|v_skolemized_q#valueAsBitvector_76| (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_77| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (let ((.cse5 (select |v_#memory_int_118| |v_ULTIMATE.start_fabs_double_~#gh_u~3.base_5|))) (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (.cse2 (select .cse5 (_ bv4 32))) (.cse1 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_76|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_76|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_76|)))) (and (= (fp.div currentRoundingMode .cse0 (_ +zero 11 53)) .cse1) (= .cse2 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_76|)) (= |c_ULTIMATE.start___ieee754_pow_#res| (fp.div currentRoundingMode .cse0 (let ((.cse3 (let ((.cse4 (bvand (_ bv2147483647 32) .cse2))) (concat .cse4 (select (store (store (select |v_#memory_int_118| |v_ULTIMATE.start_fabs_double_~#sh_u~3.base_5|) (_ bv0 32) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_77|)) (_ bv4 32) .cse4) (_ bv0 32)))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_77|)) .cse1) (= (select .cse5 (_ bv0 32)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_76|)))))) is different from true [2020-12-09 18:19:45,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:45,804 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:45,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:19:45,809 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:45,810 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:19:45,812 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:19:45,814 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 18:19:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:19:48,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:19:48,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96835237] [2020-12-09 18:19:48,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:19:48,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-09 18:19:48,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449221063] [2020-12-09 18:19:48,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-09 18:19:48,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:19:48,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-09 18:19:48,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=101, Unknown=4, NotChecked=42, Total=182 [2020-12-09 18:19:48,355 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 14 states. [2020-12-09 18:19:49,497 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 18:19:50,531 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 18:19:51,490 WARN L197 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-09 18:19:53,149 WARN L197 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-12-09 18:19:55,035 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-12-09 18:19:57,250 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-12-09 18:19:58,821 WARN L197 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-12-09 18:20:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:20:01,966 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-12-09 18:20:01,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-09 18:20:01,968 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2020-12-09 18:20:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:20:01,968 INFO L225 Difference]: With dead ends: 40 [2020-12-09 18:20:01,968 INFO L226 Difference]: Without dead ends: 37 [2020-12-09 18:20:01,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=112, Invalid=231, Unknown=7, NotChecked=70, Total=420 [2020-12-09 18:20:01,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-09 18:20:01,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-09 18:20:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-09 18:20:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2020-12-09 18:20:01,975 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 28 [2020-12-09 18:20:01,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:20:01,976 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2020-12-09 18:20:01,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-09 18:20:01,976 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2020-12-09 18:20:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-09 18:20:01,977 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:20:01,977 INFO L422 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, 1, 1] [2020-12-09 18:20:02,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-12-09 18:20:02,179 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:20:02,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:20:02,180 INFO L82 PathProgramCache]: Analyzing trace with hash 377476497, now seen corresponding path program 1 times [2020-12-09 18:20:02,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:20:02,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555717620] [2020-12-09 18:20:02,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a23d31b0-c27d-4774-ab39-92f12b59ec95/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-12-09 18:20:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:20:03,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-09 18:20:03,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:20:03,408 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:20:03,525 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-09 18:20:03,527 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 18:20:03,843 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-09 18:20:03,844 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:20:03,847 INFO L547 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. [2020-12-09 18:20:03,847 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:61, output treesize:57 [2020-12-09 18:20:04,378 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-09 18:20:04,971 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-09 18:20:05,615 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-09 18:20:06,313 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-09 18:20:08,539 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_fabs_double_~#sh_u~3.base_6| (_ BitVec 32)) (ULTIMATE.start_fabs_double_~high~0 (_ BitVec 32))) (let ((.cse2 (select |c_#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~3.base_6|))) (let ((.cse0 (select .cse2 (_ bv4 32)))) (and (= (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_double_~high~0) .cse0) (= c_ULTIMATE.start___ieee754_pow_~z~1 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse1 (concat .cse0 (select .cse2 (_ bv0 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))))))) is different from false [2020-12-09 18:20:10,790 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_fabs_double_~#sh_u~3.base_6| (_ BitVec 32)) (ULTIMATE.start_fabs_double_~high~0 (_ BitVec 32))) (let ((.cse2 (select |c_#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~3.base_6|))) (let ((.cse1 (select .cse2 (_ bv4 32)))) (and (= |c_ULTIMATE.start___ieee754_pow_#res| (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse0 (concat .cse1 (select .cse2 (_ bv0 32))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))))) (= (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_double_~high~0) .cse1))))) is different from false [2020-12-09 18:20:13,023 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (exists ((|v_ULTIMATE.start_fabs_double_~#sh_u~3.base_6| (_ BitVec 32)) (ULTIMATE.start_fabs_double_~high~0 (_ BitVec 32))) (let ((.cse4 (select |c_#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~3.base_6|))) (let ((.cse2 (select .cse4 (_ bv4 32)))) (and (= (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_double_~high~0) .cse2) (= (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse3 (concat .cse2 (select .cse4 (_ bv0 32))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3)))) c_ULTIMATE.start_main_~res~0)))))) (.cse1 (fp.eq c_ULTIMATE.start_main_~res~0 (_ +zero 11 53)))) (or (and .cse0 .cse1 |c_ULTIMATE.start_main_#t~short62|) (and .cse0 (not .cse1) (not |c_ULTIMATE.start_main_#t~short62|)))) is different from false [2020-12-09 18:20:15,296 WARN L838 $PredicateComparison]: unable to prove that (and (fp.eq c_ULTIMATE.start___signbit_double_~x (_ +zero 11 53)) (exists ((|v_ULTIMATE.start_fabs_double_~#sh_u~3.base_6| (_ BitVec 32)) (ULTIMATE.start_fabs_double_~high~0 (_ BitVec 32))) (let ((.cse2 (select |c_#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~3.base_6|))) (let ((.cse0 (select .cse2 (_ bv4 32)))) (and (= (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_double_~high~0) .cse0) (= c_ULTIMATE.start___signbit_double_~x (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse1 (concat .cse0 (select .cse2 (_ bv0 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))))))))) is different from false [2020-12-09 18:20:15,406 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:20:15,406 INFO L382 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 60 treesize of output 32 [2020-12-09 18:20:15,408 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 18:20:30,846 WARN L197 SmtUtils]: Spent 15.44 s on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 18:20:30,846 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:20:30,848 INFO L547 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. [2020-12-09 18:20:30,848 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:73, output treesize:46 [2020-12-09 18:20:33,062 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_78| (_ BitVec 64)) (ULTIMATE.start_fabs_double_~high~0 (_ BitVec 32)) (v_arrayElimCell_28 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_78|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_78|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_78|)))) (and (fp.eq .cse0 (_ +zero 11 53)) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_78|) c_ULTIMATE.start___signbit_double_~msw~0) (= (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse1 (concat (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_double_~high~0) v_arrayElimCell_28))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))) .cse0)))) is different from false [2020-12-09 18:20:35,230 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_78| (_ BitVec 64)) (ULTIMATE.start_fabs_double_~high~0 (_ BitVec 32)) (v_arrayElimCell_28 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_78|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_78|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_78|)))) (and (fp.eq .cse0 (_ +zero 11 53)) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_78|) c_ULTIMATE.start___signbit_double_~msw~0) (= (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse1 (concat (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_double_~high~0) v_arrayElimCell_28))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))) .cse0)))) is different from true [2020-12-09 18:20:35,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:20:43,443 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_78| (_ BitVec 64)) (ULTIMATE.start_fabs_double_~high~0 (_ BitVec 32)) (v_arrayElimCell_28 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_78|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_78|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_78|)))) (and (= (_ bv0 32) (bvand (_ bv2147483648 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_78|))) (fp.eq .cse0 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse1 (concat (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_double_~high~0) v_arrayElimCell_28))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))) .cse0)))) (= |c_ULTIMATE.start___signbit_double_#res| (_ bv0 32))) is different from false [2020-12-09 18:20:50,142 WARN L838 $PredicateComparison]: unable to prove that (and |c_ULTIMATE.start_main_#t~short62| (exists ((|v_skolemized_q#valueAsBitvector_78| (_ BitVec 64)) (ULTIMATE.start_fabs_double_~high~0 (_ BitVec 32)) (v_arrayElimCell_28 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_78|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_78|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_78|)))) (and (= (_ bv0 32) (bvand (_ bv2147483648 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_78|))) (fp.eq .cse0 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse1 (concat (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_double_~high~0) v_arrayElimCell_28))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))) .cse0))))) is different from false [2020-12-09 18:20:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:20:50,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:20:50,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555717620] [2020-12-09 18:20:50,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:20:50,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-09 18:20:50,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950259884] [2020-12-09 18:20:50,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-09 18:20:50,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:20:50,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-09 18:20:50,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=33, Unknown=8, NotChecked=112, Total=182 [2020-12-09 18:20:50,183 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 14 states. [2020-12-09 18:20:53,945 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-09 18:20:54,647 WARN L197 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-09 18:20:55,353 WARN L197 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-09 18:20:57,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:20:57,965 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-12-09 18:20:58,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-09 18:20:58,164 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2020-12-09 18:20:58,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:20:58,165 INFO L225 Difference]: With dead ends: 37 [2020-12-09 18:20:58,165 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 18:20:58,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=50, Invalid=60, Unknown=8, NotChecked=154, Total=272 [2020-12-09 18:20:58,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 18:20:58,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 18:20:58,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 18:20:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 18:20:58,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-12-09 18:20:58,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:20:58,166 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 18:20:58,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-09 18:20:58,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 18:20:58,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 18:20:58,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-12-09 18:20:58,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 18:21:00,571 WARN L197 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 168 DAG size of output: 119 [2020-12-09 18:21:01,681 WARN L197 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2020-12-09 18:21:33,652 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-09 18:21:33,653 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) 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.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1052) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 34 more [2020-12-09 18:21:33,657 INFO L168 Benchmark]: Toolchain (without parser) took 309633.40 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 48.7 MB in the end (delta: -7.1 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:33,657 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 46.1 MB. Free memory was 29.6 MB in the beginning and 29.5 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:21:33,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.39 ms. Allocated memory is still 56.6 MB. Free memory was 41.4 MB in the beginning and 27.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:33,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.46 ms. Allocated memory is still 56.6 MB. Free memory was 27.0 MB in the beginning and 35.5 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:33,658 INFO L168 Benchmark]: Boogie Preprocessor took 83.22 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 30.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:33,658 INFO L168 Benchmark]: RCFGBuilder took 79485.78 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 30.4 MB in the beginning and 33.0 MB in the end (delta: -2.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:33,659 INFO L168 Benchmark]: TraceAbstraction took 229586.17 ms. Allocated memory is still 73.4 MB. Free memory was 32.6 MB in the beginning and 48.7 MB in the end (delta: -16.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:33,660 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 46.1 MB. Free memory was 29.6 MB in the beginning and 29.5 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.39 ms. Allocated memory is still 56.6 MB. Free memory was 41.4 MB in the beginning and 27.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.46 ms. Allocated memory is still 56.6 MB. Free memory was 27.0 MB in the beginning and 35.5 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.22 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 30.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 79485.78 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 30.4 MB in the beginning and 33.0 MB in the end (delta: -2.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 229586.17 ms. Allocated memory is still 73.4 MB. Free memory was 32.6 MB in the beginning and 48.7 MB in the end (delta: -16.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...