./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0883.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_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0883.c -s /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 3b3809e91ede00e1e9187fef8a038e5463b8d9fc ............................................................................................................................................................................. 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_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0883.c -s /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 3b3809e91ede00e1e9187fef8a038e5463b8d9fc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:02:07,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 11:02:07,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 11:02:07,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 11:02:07,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 11:02:07,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 11:02:07,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 11:02:07,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 11:02:07,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 11:02:07,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 11:02:07,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 11:02:07,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 11:02:07,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 11:02:07,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 11:02:07,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 11:02:07,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 11:02:07,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 11:02:07,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 11:02:07,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 11:02:07,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 11:02:07,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 11:02:07,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 11:02:07,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 11:02:07,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 11:02:07,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 11:02:07,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 11:02:07,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 11:02:07,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 11:02:07,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 11:02:07,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 11:02:07,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 11:02:07,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 11:02:07,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 11:02:07,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 11:02:07,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 11:02:07,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 11:02:07,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 11:02:07,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 11:02:07,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 11:02:07,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 11:02:07,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 11:02:07,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 11:02:07,447 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 11:02:07,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 11:02:07,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 11:02:07,448 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 11:02:07,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 11:02:07,448 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 11:02:07,448 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 11:02:07,448 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 11:02:07,448 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 11:02:07,448 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 11:02:07,449 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 11:02:07,449 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 11:02:07,449 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 11:02:07,449 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 11:02:07,449 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 11:02:07,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 11:02:07,450 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 11:02:07,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 11:02:07,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 11:02:07,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 11:02:07,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 11:02:07,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 11:02:07,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 11:02:07,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 11:02:07,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 11:02:07,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 11:02:07,451 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 11:02:07,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 11:02:07,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 11:02:07,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 11:02:07,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 11:02:07,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 11:02:07,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 11:02:07,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 11:02:07,452 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 11:02:07,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 11:02:07,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 11:02:07,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 11:02:07,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 11:02:07,452 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_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b3809e91ede00e1e9187fef8a038e5463b8d9fc [2020-12-09 11:02:07,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 11:02:07,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 11:02:07,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 11:02:07,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 11:02:07,656 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 11:02:07,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2020-12-09 11:02:07,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data/294dfdef1/f46cec2816b442d68c34f6dac66fcc4f/FLAG96df8b6e4 [2020-12-09 11:02:08,106 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 11:02:08,106 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2020-12-09 11:02:08,114 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data/294dfdef1/f46cec2816b442d68c34f6dac66fcc4f/FLAG96df8b6e4 [2020-12-09 11:02:08,123 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data/294dfdef1/f46cec2816b442d68c34f6dac66fcc4f [2020-12-09 11:02:08,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 11:02:08,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 11:02:08,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 11:02:08,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 11:02:08,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 11:02:08,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:02:08" (1/1) ... [2020-12-09 11:02:08,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710ce5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:08, skipping insertion in model container [2020-12-09 11:02:08,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:02:08" (1/1) ... [2020-12-09 11:02:08,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 11:02:08,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 11:02:08,310 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 11:02:08,313 INFO L168 Benchmark]: Toolchain (without parser) took 185.80 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 63.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 11:02:08,313 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 104.9 MB. Free memory is still 82.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:02:08,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.90 ms. Allocated memory is still 104.9 MB. Free memory was 74.8 MB in the beginning and 63.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 11:02:08,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 104.9 MB. Free memory is still 82.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 183.90 ms. Allocated memory is still 104.9 MB. Free memory was 74.8 MB in the beginning and 63.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 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 11:02:09,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 11:02:09,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 11:02:09,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 11:02:09,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 11:02:09,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 11:02:09,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 11:02:09,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 11:02:09,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 11:02:09,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 11:02:09,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 11:02:09,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 11:02:09,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 11:02:09,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 11:02:09,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 11:02:09,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 11:02:09,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 11:02:09,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 11:02:09,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 11:02:09,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 11:02:09,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 11:02:09,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 11:02:09,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 11:02:09,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 11:02:09,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 11:02:09,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 11:02:09,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 11:02:09,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 11:02:09,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 11:02:09,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 11:02:09,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 11:02:09,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 11:02:09,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 11:02:09,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 11:02:09,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 11:02:09,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 11:02:09,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 11:02:09,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 11:02:09,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 11:02:09,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 11:02:09,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 11:02:09,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 11:02:09,759 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 11:02:09,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 11:02:09,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 11:02:09,760 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 11:02:09,760 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 11:02:09,761 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 11:02:09,761 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 11:02:09,761 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 11:02:09,761 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 11:02:09,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 11:02:09,762 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 11:02:09,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 11:02:09,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 11:02:09,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 11:02:09,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 11:02:09,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 11:02:09,762 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 11:02:09,763 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 11:02:09,763 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 11:02:09,763 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 11:02:09,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 11:02:09,763 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 11:02:09,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 11:02:09,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 11:02:09,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 11:02:09,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 11:02:09,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 11:02:09,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 11:02:09,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 11:02:09,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 11:02:09,764 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 11:02:09,764 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 11:02:09,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 11:02:09,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 11:02:09,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 11:02:09,765 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_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b3809e91ede00e1e9187fef8a038e5463b8d9fc [2020-12-09 11:02:10,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 11:02:10,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 11:02:10,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 11:02:10,025 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 11:02:10,025 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 11:02:10,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2020-12-09 11:02:10,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data/0d10c610c/d123b396e34d403381f4a61e9ed5e91c/FLAG169c68095 [2020-12-09 11:02:10,465 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 11:02:10,466 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2020-12-09 11:02:10,474 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data/0d10c610c/d123b396e34d403381f4a61e9ed5e91c/FLAG169c68095 [2020-12-09 11:02:10,483 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/bin/utaipan/data/0d10c610c/d123b396e34d403381f4a61e9ed5e91c [2020-12-09 11:02:10,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 11:02:10,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 11:02:10,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 11:02:10,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 11:02:10,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 11:02:10,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531889a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10, skipping insertion in model container [2020-12-09 11:02:10,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 11:02:10,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 11:02:10,721 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_801def7b-fd5a-4326-8a96-ab1b25b36b3b/sv-benchmarks/c/float-newlib/double_req_bl_0883.c[14409,14422] [2020-12-09 11:02:10,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:02:10,733 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 11:02:10,802 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_801def7b-fd5a-4326-8a96-ab1b25b36b3b/sv-benchmarks/c/float-newlib/double_req_bl_0883.c[14409,14422] [2020-12-09 11:02:10,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:02:10,821 INFO L208 MainTranslator]: Completed translation [2020-12-09 11:02:10,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10 WrapperNode [2020-12-09 11:02:10,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 11:02:10,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 11:02:10,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 11:02:10,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 11:02:10,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 11:02:10,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 11:02:10,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 11:02:10,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 11:02:10,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... [2020-12-09 11:02:10,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 11:02:10,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 11:02:10,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 11:02:10,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 11:02:10,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 11:02:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 11:02:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 11:02:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 11:02:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 11:02:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-09 11:02:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 11:02:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 11:02:10,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 11:02:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 11:02:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 11:03:25,170 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 11:03:25,170 INFO L299 CfgBuilder]: Removed 92 assume(true) statements. [2020-12-09 11:03:25,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:03:25 BoogieIcfgContainer [2020-12-09 11:03:25,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 11:03:25,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 11:03:25,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 11:03:25,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 11:03:25,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:02:10" (1/3) ... [2020-12-09 11:03:25,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26576a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:03:25, skipping insertion in model container [2020-12-09 11:03:25,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:02:10" (2/3) ... [2020-12-09 11:03:25,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26576a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:03:25, skipping insertion in model container [2020-12-09 11:03:25,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:03:25" (3/3) ... [2020-12-09 11:03:25,181 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0883.c [2020-12-09 11:03:25,191 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 11:03:25,194 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 11:03:25,201 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 11:03:25,219 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 11:03:25,219 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 11:03:25,219 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 11:03:25,220 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 11:03:25,220 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 11:03:25,220 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 11:03:25,220 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 11:03:25,220 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 11:03:25,233 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-12-09 11:03:25,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 11:03:25,237 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:03:25,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:03:25,238 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:03:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:03:25,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1952898142, now seen corresponding path program 1 times [2020-12-09 11:03:25,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:03:25,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983747528] [2020-12-09 11:03:25,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 11:03:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:03:25,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 11:03:25,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:03:25,518 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 11:03:25,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:03:25,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983747528] [2020-12-09 11:03:25,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:03:25,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 11:03:25,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562083855] [2020-12-09 11:03:25,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 11:03:25,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:03:25,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 11:03:25,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 11:03:25,533 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 2 states. [2020-12-09 11:03:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:03:25,564 INFO L93 Difference]: Finished difference Result 429 states and 732 transitions. [2020-12-09 11:03:25,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 11:03:25,565 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-09 11:03:25,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:03:25,573 INFO L225 Difference]: With dead ends: 429 [2020-12-09 11:03:25,573 INFO L226 Difference]: Without dead ends: 212 [2020-12-09 11:03:25,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 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 11:03:25,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-12-09 11:03:25,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-12-09 11:03:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-12-09 11:03:25,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 290 transitions. [2020-12-09 11:03:25,615 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 290 transitions. Word has length 13 [2020-12-09 11:03:25,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:03:25,616 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 290 transitions. [2020-12-09 11:03:25,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 11:03:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 290 transitions. [2020-12-09 11:03:25,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 11:03:25,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:03:25,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:03:25,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 11:03:25,817 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:03:25,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:03:25,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1508795791, now seen corresponding path program 1 times [2020-12-09 11:03:25,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:03:25,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798341148] [2020-12-09 11:03:25,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 11:03:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:03:26,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 11:03:26,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:03:26,407 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 11:03:26,457 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 11:03:26,507 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:03:26,508 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 11:03:26,718 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 11:03:26,719 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:03:26,721 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 11:03:26,722 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:18 [2020-12-09 11:03:27,264 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 11:03:27,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:03:27,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798341148] [2020-12-09 11:03:27,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:03:27,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 11:03:27,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355537995] [2020-12-09 11:03:27,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 11:03:27,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:03:27,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 11:03:27,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 11:03:27,267 INFO L87 Difference]: Start difference. First operand 212 states and 290 transitions. Second operand 5 states. [2020-12-09 11:03:30,686 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 11:03:39,016 WARN L197 SmtUtils]: Spent 4.21 s on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 11:03:53,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:03:53,821 INFO L93 Difference]: Finished difference Result 236 states and 315 transitions. [2020-12-09 11:03:53,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 11:03:53,942 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-09 11:03:53,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:03:53,946 INFO L225 Difference]: With dead ends: 236 [2020-12-09 11:03:53,946 INFO L226 Difference]: Without dead ends: 220 [2020-12-09 11:03:53,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=17, Invalid=23, Unknown=2, NotChecked=0, Total=42 [2020-12-09 11:03:53,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-12-09 11:03:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 212. [2020-12-09 11:03:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-12-09 11:03:53,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 283 transitions. [2020-12-09 11:03:53,974 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 283 transitions. Word has length 16 [2020-12-09 11:03:53,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:03:53,975 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 283 transitions. [2020-12-09 11:03:53,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 11:03:53,975 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 283 transitions. [2020-12-09 11:03:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 11:03:53,975 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:03:53,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:03:54,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 11:03:54,177 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:03:54,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:03:54,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1604115190, now seen corresponding path program 1 times [2020-12-09 11:03:54,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:03:54,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749950792] [2020-12-09 11:03:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 11:03:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:03:54,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 11:03:54,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:03:55,283 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 11:03:55,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:03:55,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749950792] [2020-12-09 11:03:55,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:03:55,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 11:03:55,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491675419] [2020-12-09 11:03:55,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 11:03:55,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:03:55,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 11:03:55,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 11:03:55,285 INFO L87 Difference]: Start difference. First operand 212 states and 283 transitions. Second operand 6 states. [2020-12-09 11:03:55,645 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 11:03:56,118 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 11:03:56,608 WARN L197 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 11:03:59,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:03:59,509 INFO L93 Difference]: Finished difference Result 401 states and 531 transitions. [2020-12-09 11:03:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 11:03:59,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-09 11:03:59,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:03:59,512 INFO L225 Difference]: With dead ends: 401 [2020-12-09 11:03:59,512 INFO L226 Difference]: Without dead ends: 201 [2020-12-09 11:03:59,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 11:03:59,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-12-09 11:03:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 193. [2020-12-09 11:03:59,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-12-09 11:03:59,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 242 transitions. [2020-12-09 11:03:59,528 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 242 transitions. Word has length 18 [2020-12-09 11:03:59,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:03:59,528 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 242 transitions. [2020-12-09 11:03:59,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 11:03:59,528 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 242 transitions. [2020-12-09 11:03:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 11:03:59,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:03:59,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:03:59,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 11:03:59,730 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:03:59,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:03:59,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1881505480, now seen corresponding path program 1 times [2020-12-09 11:03:59,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:03:59,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986527334] [2020-12-09 11:03:59,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 11:04:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:04:00,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 11:04:00,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:04:00,537 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-09 11:04:00,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 11:04:00,805 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 11:04:00,807 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 11:04:01,195 WARN L197 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 11:04:01,196 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:01,201 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 11:04:01,202 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:48, output treesize:48 [2020-12-09 11:04:01,535 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 11:04:01,785 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 11:04:01,786 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:01,787 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 11:04:01,791 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:04:01,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:04:01,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:04:01,825 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_3], 2=[v_arrayElimCell_2]} [2020-12-09 11:04:02,362 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 11:04:02,362 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:02,363 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 11:04:02,366 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:04:02,367 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:04:02,369 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:04:02,398 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_5], 2=[v_arrayElimCell_4]} [2020-12-09 11:04:02,664 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 11:04:02,664 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:02,665 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 11:04:02,667 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:04:02,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:04:02,669 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:04:02,698 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_7], 2=[v_arrayElimCell_6]} [2020-12-09 11:04:03,325 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 11:04:03,326 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:03,326 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 11:04:03,328 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:04:03,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:04:03,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:04:03,360 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_9], 2=[v_arrayElimCell_8]} [2020-12-09 11:04:03,418 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 11:04:03,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:04:03,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986527334] [2020-12-09 11:04:03,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:04:03,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 11:04:03,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048071981] [2020-12-09 11:04:03,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 11:04:03,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:04:03,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 11:04:03,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-09 11:04:03,421 INFO L87 Difference]: Start difference. First operand 193 states and 242 transitions. Second operand 7 states. [2020-12-09 11:04:03,950 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 11:04:04,494 WARN L197 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-09 11:04:05,311 WARN L197 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-09 11:04:05,959 WARN L197 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-09 11:04:09,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:04:09,317 INFO L93 Difference]: Finished difference Result 201 states and 249 transitions. [2020-12-09 11:04:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 11:04:09,319 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-09 11:04:09,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:04:09,319 INFO L225 Difference]: With dead ends: 201 [2020-12-09 11:04:09,319 INFO L226 Difference]: Without dead ends: 82 [2020-12-09 11:04:09,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=35, Invalid=73, Unknown=2, NotChecked=0, Total=110 [2020-12-09 11:04:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-09 11:04:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-12-09 11:04:09,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-09 11:04:09,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 106 transitions. [2020-12-09 11:04:09,329 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 106 transitions. Word has length 18 [2020-12-09 11:04:09,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:04:09,329 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 106 transitions. [2020-12-09 11:04:09,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 11:04:09,329 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 106 transitions. [2020-12-09 11:04:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 11:04:09,330 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:04:09,330 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] [2020-12-09 11:04:09,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 11:04:09,532 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:04:09,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:04:09,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1708848732, now seen corresponding path program 1 times [2020-12-09 11:04:09,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:04:09,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594623046] [2020-12-09 11:04:09,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 11:04:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:04:09,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 11:04:09,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:04:10,872 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 11:04:10,930 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 11:04:10,982 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:10,983 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 11:04:11,204 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 11:04:11,205 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:11,207 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 11:04:11,207 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:23 [2020-12-09 11:04:12,449 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 11:04:12,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:04:12,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594623046] [2020-12-09 11:04:12,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:04:12,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 11:04:12,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085540665] [2020-12-09 11:04:12,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 11:04:12,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:04:12,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 11:04:12,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-09 11:04:12,451 INFO L87 Difference]: Start difference. First operand 82 states and 106 transitions. Second operand 9 states. [2020-12-09 11:04:13,054 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 11:04:13,969 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 11:04:15,417 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 11:04:16,008 WARN L197 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-09 11:04:16,988 WARN L197 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-09 11:04:17,669 WARN L197 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-09 11:04:17,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:04:17,924 INFO L93 Difference]: Finished difference Result 90 states and 113 transitions. [2020-12-09 11:04:17,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 11:04:17,925 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-12-09 11:04:17,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:04:17,926 INFO L225 Difference]: With dead ends: 90 [2020-12-09 11:04:17,926 INFO L226 Difference]: Without dead ends: 81 [2020-12-09 11:04:17,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-12-09 11:04:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-12-09 11:04:17,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-12-09 11:04:17,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-09 11:04:17,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2020-12-09 11:04:17,935 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 22 [2020-12-09 11:04:17,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:04:17,935 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2020-12-09 11:04:17,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 11:04:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2020-12-09 11:04:17,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 11:04:17,936 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:04:17,936 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] [2020-12-09 11:04:18,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 11:04:18,136 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:04:18,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:04:18,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1455075428, now seen corresponding path program 1 times [2020-12-09 11:04:18,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:04:18,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323792983] [2020-12-09 11:04:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 11:04:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:04:18,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-09 11:04:18,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:04:18,885 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 11:04:18,886 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 11:04:19,270 WARN L197 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 11:04:19,271 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:19,274 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 11:04:19,274 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:43 [2020-12-09 11:04:19,504 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-09 11:04:19,808 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 11:04:20,182 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-09 11:04:20,599 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-09 11:04:21,772 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 11:04:21,773 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:21,773 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 50 treesize of output 48 [2020-12-09 11:04:21,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:04:21,777 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:04:21,777 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:04:21,802 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_11], 2=[v_arrayElimCell_12]} [2020-12-09 11:04:22,486 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 11:04:22,486 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:22,487 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 50 treesize of output 48 [2020-12-09 11:04:22,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:04:22,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:04:22,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:04:22,517 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_13], 2=[v_arrayElimCell_14]} [2020-12-09 11:04:22,783 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 11:04:22,783 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:22,784 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 120 treesize of output 112 [2020-12-09 11:04:22,786 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:04:22,787 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:04:22,788 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:04:22,815 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_15], 2=[v_arrayElimCell_16]} [2020-12-09 11:04:23,592 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 11:04:23,593 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:23,593 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 120 treesize of output 112 [2020-12-09 11:04:23,595 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:04:23,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:04:23,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:04:23,625 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_17], 2=[v_arrayElimCell_18]} [2020-12-09 11:04:24,220 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 11:04:24,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:04:24,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323792983] [2020-12-09 11:04:24,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:04:24,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-09 11:04:24,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236500721] [2020-12-09 11:04:24,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 11:04:24,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:04:24,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 11:04:24,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-12-09 11:04:24,222 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand 13 states. [2020-12-09 11:04:25,931 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-09 11:04:27,700 WARN L197 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-12-09 11:04:29,039 WARN L197 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-09 11:04:31,441 WARN L197 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-09 11:04:32,431 WARN L197 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-09 11:04:34,203 WARN L197 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-09 11:04:35,376 WARN L197 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-12-09 11:04:36,650 WARN L197 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-12-09 11:04:38,078 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-12-09 11:04:40,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:04:40,505 INFO L93 Difference]: Finished difference Result 91 states and 112 transitions. [2020-12-09 11:04:40,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-09 11:04:40,507 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-12-09 11:04:40,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:04:40,508 INFO L225 Difference]: With dead ends: 91 [2020-12-09 11:04:40,508 INFO L226 Difference]: Without dead ends: 79 [2020-12-09 11:04:40,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=130, Invalid=331, Unknown=1, NotChecked=0, Total=462 [2020-12-09 11:04:40,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-12-09 11:04:40,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2020-12-09 11:04:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-09 11:04:40,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2020-12-09 11:04:40,517 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 24 [2020-12-09 11:04:40,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:04:40,517 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2020-12-09 11:04:40,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 11:04:40,517 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2020-12-09 11:04:40,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 11:04:40,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:04:40,518 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 11:04:40,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 11:04:40,720 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:04:40,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:04:40,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1888969367, now seen corresponding path program 1 times [2020-12-09 11:04:40,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:04:40,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873559017] [2020-12-09 11:04:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 11:04:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:04:41,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-09 11:04:41,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:04:41,865 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 11:04:42,171 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 11:04:42,537 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 11:04:43,465 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 11:04:43,517 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 11:04:43,565 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:43,565 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 11:04:43,770 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 11:04:43,771 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:04:43,772 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 11:04:43,772 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:50, output treesize:39 [2020-12-09 11:04:45,112 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 11:04:45,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:04:45,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873559017] [2020-12-09 11:04:45,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:04:45,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-09 11:04:45,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055848555] [2020-12-09 11:04:45,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-09 11:04:45,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:04:45,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-09 11:04:45,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-12-09 11:04:45,113 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand 12 states. [2020-12-09 11:04:46,297 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 11:04:47,405 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 11:04:50,218 WARN L197 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 11:04:50,882 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 11:04:51,563 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 11:04:52,432 WARN L197 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-09 11:04:56,142 WARN L197 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-09 11:04:56,912 WARN L197 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-09 11:04:58,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:04:58,810 INFO L93 Difference]: Finished difference Result 103 states and 121 transitions. [2020-12-09 11:04:58,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-09 11:04:58,811 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-12-09 11:04:58,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:04:58,812 INFO L225 Difference]: With dead ends: 103 [2020-12-09 11:04:58,812 INFO L226 Difference]: Without dead ends: 94 [2020-12-09 11:04:58,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-12-09 11:04:58,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-09 11:04:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 77. [2020-12-09 11:04:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-09 11:04:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 96 transitions. [2020-12-09 11:04:58,820 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 96 transitions. Word has length 28 [2020-12-09 11:04:58,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:04:58,820 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 96 transitions. [2020-12-09 11:04:58,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-09 11:04:58,820 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 96 transitions. [2020-12-09 11:04:58,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-09 11:04:58,821 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:04:58,821 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] [2020-12-09 11:04:59,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 11:04:59,023 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:04:59,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:04:59,024 INFO L82 PathProgramCache]: Analyzing trace with hash 2004065555, now seen corresponding path program 1 times [2020-12-09 11:04:59,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:04:59,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056176446] [2020-12-09 11:04:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801def7b-fd5a-4326-8a96-ab1b25b36b3b/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 11:04:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:04:59,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-09 11:04:59,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:05:00,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 11:05:00,445 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 11:05:00,447 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 11:05:00,766 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-09 11:05:00,766 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:05:00,769 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 11:05:00,769 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:41, output treesize:41 [2020-12-09 11:05:01,262 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 11:05:02,237 WARN L197 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 11:05:02,238 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:05:02,238 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 75 [2020-12-09 11:05:02,242 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 11:05:03,356 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-12-09 11:05:03,357 INFO L625 ElimStorePlain]: treesize reduction 36, result has 74.1 percent of original size [2020-12-09 11:05:03,360 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-12-09 11:05:03,360 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:106, output treesize:103 [2020-12-09 11:05:06,673 WARN L197 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 11:05:06,674 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:05:06,674 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 97 [2020-12-09 11:05:06,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:06,677 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:06,678 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:06,678 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:06,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:06,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:06,680 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 11:05:06,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:06,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:06,682 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:06,682 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:06,685 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 11:05:06,686 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:06,687 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:06,687 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:06,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:06,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:06,690 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:06,692 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:06,692 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:06,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:06,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:05:06,694 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 11:05:06,695 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:06,695 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:05:06,696 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:06,724 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_24, v_arrayElimCell_23], 2=[v_arrayElimCell_22]} [2020-12-09 11:05:08,028 WARN L197 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 11:05:08,029 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:05:08,029 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 97 [2020-12-09 11:05:08,032 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:08,034 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:08,036 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,037 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 11:05:08,038 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,038 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:05:08,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:08,040 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 11:05:08,041 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,041 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:08,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:08,044 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:08,045 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,045 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 11:05:08,047 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,048 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,048 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:08,050 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,050 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:05:08,079 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_26, v_arrayElimCell_27], 2=[v_arrayElimCell_25]} [2020-12-09 11:05:08,743 WARN L197 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 11:05:08,744 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:05:08,745 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 165 treesize of output 161 [2020-12-09 11:05:08,748 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,748 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:08,749 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:08,751 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,752 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 11:05:08,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,754 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:05:08,754 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:08,755 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 11:05:08,756 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,757 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:08,757 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:08,760 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:08,761 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,761 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,762 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,762 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 11:05:08,763 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:08,764 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:05:08,765 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:08,766 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:08,767 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:08,767 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:08,795 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_30, v_arrayElimCell_29], 2=[v_arrayElimCell_28]} [2020-12-09 11:05:10,214 WARN L197 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 11:05:10,215 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:05:10,215 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 165 treesize of output 161 [2020-12-09 11:05:10,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:10,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:10,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:10,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:10,221 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:10,221 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:10,222 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 11:05:10,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:10,224 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:10,224 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:10,225 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:05:10,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 11:05:10,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:10,230 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:05:10,231 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:10,233 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:10,234 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:10,234 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:10,235 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:10,236 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-09 11:05:10,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:10,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:05:10,238 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 11:05:10,240 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:05:10,240 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:05:10,241 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:05:10,267 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_33, v_arrayElimCell_32], 2=[v_arrayElimCell_31]} [2020-12-09 11:05:11,193 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 11:05:11,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:05:11,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056176446] [2020-12-09 11:05:11,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:05:11,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-09 11:05:11,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686050515] [2020-12-09 11:05:11,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-09 11:05:11,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:05:11,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-09 11:05:11,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-12-09 11:05:11,195 INFO L87 Difference]: Start difference. First operand 77 states and 96 transitions. Second operand 15 states. [2020-12-09 11:05:12,504 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 11:05:14,062 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 11:05:15,061 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-09 11:05:17,195 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-09 11:05:23,106 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-09 11:05:37,445 WARN L197 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-09 11:05:50,693 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-09 11:05:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 11:05:50,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-09 11:05:50,896 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.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:899) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1064) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:966) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:187) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:743) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) 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) ... 45 more [2020-12-09 11:05:50,905 INFO L168 Benchmark]: Toolchain (without parser) took 220418.25 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.6 MB in the beginning and 35.9 MB in the end (delta: -273.6 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 11:05:50,905 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.6 MB in the beginning and 39.5 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:05:50,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.68 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.3 MB in the beginning and 43.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 11:05:50,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.71 ms. Allocated memory is still 71.3 MB. Free memory was 43.5 MB in the beginning and 38.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 11:05:50,906 INFO L168 Benchmark]: Boogie Preprocessor took 64.12 ms. Allocated memory is still 71.3 MB. Free memory was 38.6 MB in the beginning and 49.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-12-09 11:05:50,907 INFO L168 Benchmark]: RCFGBuilder took 74228.68 ms. Allocated memory is still 71.3 MB. Free memory was 49.8 MB in the beginning and 45.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-12-09 11:05:50,907 INFO L168 Benchmark]: TraceAbstraction took 145729.35 ms. Allocated memory is still 71.3 MB. Free memory was 44.6 MB in the beginning and 35.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-12-09 11:05:50,909 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.6 MB in the beginning and 39.5 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.68 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.3 MB in the beginning and 43.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.71 ms. Allocated memory is still 71.3 MB. Free memory was 43.5 MB in the beginning and 38.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.12 ms. Allocated memory is still 71.3 MB. Free memory was 38.6 MB in the beginning and 49.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 74228.68 ms. Allocated memory is still 71.3 MB. Free memory was 49.8 MB in the beginning and 45.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 145729.35 ms. Allocated memory is still 71.3 MB. Free memory was 44.6 MB in the beginning and 35.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 10.2 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...