./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94c7e44bedb585ab09170efda1a99dc421396ccb ....................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94c7e44bedb585ab09170efda1a99dc421396ccb ................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-07 17:12:23,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:12:23,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:12:23,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:12:23,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:12:23,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:12:23,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:12:23,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:12:23,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:12:23,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:12:23,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:12:23,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:12:23,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:12:23,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:12:23,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:12:23,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:12:23,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:12:23,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:12:23,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:12:23,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:12:23,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:12:23,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:12:23,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:12:23,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:12:23,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:12:23,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:12:23,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:12:23,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:12:23,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:12:23,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:12:23,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:12:23,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:12:23,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:12:23,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:12:23,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:12:23,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:12:23,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:12:23,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:12:23,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:12:23,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:12:23,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:12:23,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:12:23,747 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:12:23,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:12:23,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:12:23,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:12:23,748 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:12:23,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:12:23,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:12:23,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:12:23,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:12:23,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:12:23,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:12:23,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:12:23,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:12:23,749 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:12:23,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:12:23,750 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:12:23,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:12:23,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:12:23,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:12:23,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:12:23,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:12:23,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:12:23,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:12:23,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:12:23,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:12:23,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:12:23,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:12:23,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:12:23,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:12:23,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94c7e44bedb585ab09170efda1a99dc421396ccb [2019-12-07 17:12:23,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:12:23,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:12:23,859 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:12:23,860 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:12:23,860 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:12:23,861 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2019-12-07 17:12:23,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data/d4b6e843f/005e39e7b9ec457aa829255dce676e6b/FLAG2a64f195e [2019-12-07 17:12:24,297 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:12:24,298 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2019-12-07 17:12:24,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data/d4b6e843f/005e39e7b9ec457aa829255dce676e6b/FLAG2a64f195e [2019-12-07 17:12:24,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data/d4b6e843f/005e39e7b9ec457aa829255dce676e6b [2019-12-07 17:12:24,312 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:12:24,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:12:24,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:12:24,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:12:24,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:12:24,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a8f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24, skipping insertion in model container [2019-12-07 17:12:24,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:12:24,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:12:24,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:12:24,489 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:12:24,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:12:24,525 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:12:24,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24 WrapperNode [2019-12-07 17:12:24,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:12:24,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:12:24,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:12:24,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:12:24,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:12:24,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:12:24,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:12:24,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:12:24,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... [2019-12-07 17:12:24,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:12:24,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:12:24,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:12:24,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:12:24,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:12:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:12:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 17:12:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:12:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 17:12:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:12:24,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:12:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:12:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:12:24,751 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:12:24,751 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 17:12:24,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:12:24 BoogieIcfgContainer [2019-12-07 17:12:24,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:12:24,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:12:24,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:12:24,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:12:24,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:12:24" (1/3) ... [2019-12-07 17:12:24,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0e227c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:12:24, skipping insertion in model container [2019-12-07 17:12:24,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:24" (2/3) ... [2019-12-07 17:12:24,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0e227c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:12:24, skipping insertion in model container [2019-12-07 17:12:24,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:12:24" (3/3) ... [2019-12-07 17:12:24,757 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2019-12-07 17:12:24,763 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:12:24,767 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:12:24,775 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:12:24,789 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:12:24,789 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:12:24,790 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:12:24,790 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:12:24,790 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:12:24,790 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:12:24,790 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:12:24,790 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:12:24,799 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-12-07 17:12:24,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:12:24,803 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:12:24,804 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:12:24,804 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:12:24,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:12:24,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1808844170, now seen corresponding path program 1 times [2019-12-07 17:12:24,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:12:24,814 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755562579] [2019-12-07 17:12:24,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:12:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:12:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:12:24,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755562579] [2019-12-07 17:12:24,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:12:24,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:12:24,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196071628] [2019-12-07 17:12:24,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:12:24,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:12:24,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:12:24,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:12:24,947 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2019-12-07 17:12:24,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:12:24,964 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-12-07 17:12:24,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:12:24,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 17:12:24,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:12:24,973 INFO L225 Difference]: With dead ends: 22 [2019-12-07 17:12:24,973 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 17:12:24,976 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:12:24,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 17:12:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-07 17:12:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 17:12:24,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-12-07 17:12:25,000 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-12-07 17:12:25,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:12:25,000 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-12-07 17:12:25,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:12:25,000 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-12-07 17:12:25,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 17:12:25,001 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:12:25,001 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:12:25,001 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:12:25,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:12:25,001 INFO L82 PathProgramCache]: Analyzing trace with hash 291249093, now seen corresponding path program 1 times [2019-12-07 17:12:25,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:12:25,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712556778] [2019-12-07 17:12:25,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:12:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:12:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:12:25,073 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:12:25,074 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:12:25,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:12:25 BoogieIcfgContainer [2019-12-07 17:12:25,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:12:25,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:12:25,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:12:25,092 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:12:25,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:12:24" (3/4) ... [2019-12-07 17:12:25,095 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:12:25,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:12:25,096 INFO L168 Benchmark]: Toolchain (without parser) took 782.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -93.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:25,097 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:12:25,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:25,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:12:25,098 INFO L168 Benchmark]: Boogie Preprocessor took 18.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:25,098 INFO L168 Benchmark]: RCFGBuilder took 181.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:25,099 INFO L168 Benchmark]: TraceAbstraction took 338.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:25,099 INFO L168 Benchmark]: Witness Printer took 3.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:12:25,101 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 181.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 338.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 11]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryArithmeticDOUBLEoperation at line 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 48, overapproximation of to_real at line 26. Possible FailurePath: [L41] double a,r; [L43] a = __VERIFIER_nondet_double() [L21] double xi, xsi, temp; [L22] signed int cond, exp; [L23] union double_int A_u, xi_u; [L24] A_u.d = A [L25] EXPR A_u.i [L25] exp = (signed int) ((A_u.i & 0x7FF0000000000000) >> 52) - 1023 [L26] xi_u.d = 1 [L27] xi_u.i = (((long long)(1023-exp)) << 52) [L28] EXPR xi_u.d [L28] xi = xi_u.d [L29] cond = 1 [L30] COND TRUE \read(cond) [L31] xsi = 2*xi-A*xi*xi [L32] temp = xsi-xi [L33] cond = ((temp > 1e-10) || (temp < -1e-10)) [L34] xi = xsi [L30] COND FALSE !(\read(cond)) [L36] return xi; [L36] return xi; [L36] return xi; [L46] r = inv(a) [L11] COND TRUE !(cond) [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 9 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 17:12:26,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:12:26,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:12:26,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:12:26,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:12:26,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:12:26,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:12:26,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:12:26,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:12:26,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:12:26,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:12:26,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:12:26,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:12:26,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:12:26,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:12:26,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:12:26,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:12:26,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:12:26,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:12:26,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:12:26,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:12:26,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:12:26,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:12:26,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:12:26,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:12:26,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:12:26,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:12:26,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:12:26,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:12:26,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:12:26,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:12:26,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:12:26,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:12:26,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:12:26,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:12:26,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:12:26,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:12:26,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:12:26,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:12:26,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:12:26,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:12:26,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 17:12:26,492 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:12:26,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:12:26,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:12:26,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:12:26,493 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:12:26,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:12:26,493 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:12:26,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:12:26,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:12:26,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:12:26,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:12:26,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:12:26,494 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 17:12:26,494 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 17:12:26,495 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:12:26,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:12:26,495 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:12:26,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:12:26,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:12:26,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:12:26,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:12:26,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:12:26,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:12:26,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:12:26,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:12:26,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:12:26,496 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 17:12:26,496 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 17:12:26,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:12:26,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:12:26,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:12:26,497 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94c7e44bedb585ab09170efda1a99dc421396ccb [2019-12-07 17:12:26,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:12:26,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:12:26,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:12:26,686 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:12:26,686 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:12:26,686 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2019-12-07 17:12:26,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data/5f2256bb8/99b54880066f4528a02595d2757c24cc/FLAGf6d7902c8 [2019-12-07 17:12:27,056 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:12:27,056 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2019-12-07 17:12:27,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data/5f2256bb8/99b54880066f4528a02595d2757c24cc/FLAGf6d7902c8 [2019-12-07 17:12:27,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/data/5f2256bb8/99b54880066f4528a02595d2757c24cc [2019-12-07 17:12:27,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:12:27,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:12:27,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:12:27,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:12:27,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:12:27,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@faaa545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27, skipping insertion in model container [2019-12-07 17:12:27,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:12:27,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:12:27,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:12:27,223 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:12:27,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:12:27,263 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:12:27,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27 WrapperNode [2019-12-07 17:12:27,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:12:27,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:12:27,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:12:27,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:12:27,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:12:27,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:12:27,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:12:27,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:12:27,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... [2019-12-07 17:12:27,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:12:27,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:12:27,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:12:27,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:12:27,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:12:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 17:12:27,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 17:12:27,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:12:27,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-12-07 17:12:27,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:12:27,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:12:27,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2019-12-07 17:12:27,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:12:29,671 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:12:29,671 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 17:12:29,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:12:29 BoogieIcfgContainer [2019-12-07 17:12:29,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:12:29,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:12:29,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:12:29,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:12:29,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:12:27" (1/3) ... [2019-12-07 17:12:29,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f18abec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:12:29, skipping insertion in model container [2019-12-07 17:12:29,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:27" (2/3) ... [2019-12-07 17:12:29,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f18abec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:12:29, skipping insertion in model container [2019-12-07 17:12:29,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:12:29" (3/3) ... [2019-12-07 17:12:29,677 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2019-12-07 17:12:29,684 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:12:29,688 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:12:29,695 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:12:29,710 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:12:29,710 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:12:29,710 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:12:29,710 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:12:29,710 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:12:29,710 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:12:29,710 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:12:29,710 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:12:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-12-07 17:12:29,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:12:29,722 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:12:29,723 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:12:29,723 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:12:29,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:12:29,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1808844170, now seen corresponding path program 1 times [2019-12-07 17:12:29,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:12:29,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243851193] [2019-12-07 17:12:29,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 17:12:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:12:29,814 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:12:29,817 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:12:29,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:12:29,836 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:12:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:12:29,846 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243851193] [2019-12-07 17:12:29,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:12:29,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 17:12:29,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435623909] [2019-12-07 17:12:29,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:12:29,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:12:29,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:12:29,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:12:29,861 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2019-12-07 17:12:32,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:12:32,162 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-12-07 17:12:32,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:12:32,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 17:12:32,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:12:32,170 INFO L225 Difference]: With dead ends: 22 [2019-12-07 17:12:32,170 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 17:12:32,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:12:32,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 17:12:32,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-07 17:12:32,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 17:12:32,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-12-07 17:12:32,197 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-12-07 17:12:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:12:32,198 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-12-07 17:12:32,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:12:32,198 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-12-07 17:12:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 17:12:32,198 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:12:32,198 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:12:32,399 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 17:12:32,400 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:12:32,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:12:32,400 INFO L82 PathProgramCache]: Analyzing trace with hash 291249093, now seen corresponding path program 1 times [2019-12-07 17:12:32,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:12:32,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99640850] [2019-12-07 17:12:32,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6efd677a-efed-4efe-885f-ea298bed6956/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 17:12:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:12:33,559 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 17:12:33,561 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:12:33,616 INFO L377 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 348 treesize of output 342 [2019-12-07 17:12:33,627 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-12-07 17:12:33,648 INFO L614 ElimStorePlain]: treesize reduction 227, result has 48.4 percent of original size [2019-12-07 17:12:33,648 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:12:33,676 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:12:33,684 INFO L377 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 213 treesize of output 201 [2019-12-07 17:12:33,693 INFO L534 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2019-12-07 17:12:33,713 INFO L614 ElimStorePlain]: treesize reduction 149, result has 47.5 percent of original size [2019-12-07 17:12:33,713 INFO L534 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:12:33,744 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:12:33,745 INFO L534 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:12:33,746 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:371, output treesize:158 [2019-12-07 17:12:51,679 WARN L192 SmtUtils]: Spent 10.67 s on a formula simplification that was a NOOP. DAG size: 48 [2019-12-07 17:13:12,792 WARN L192 SmtUtils]: Spent 10.20 s on a formula simplification that was a NOOP. DAG size: 48 [2019-12-07 17:13:12,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:13:16,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:13:28,452 WARN L838 $PredicateComparison]: unable to prove that (or (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse5)) (_ bv4294966273 32))) (_ bv1023 32))) .cse5)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse2) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse1 .cse2) .cse2))))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))))))) (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse6 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (fp.leq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (not (fp.geq (let ((.cse7 (let ((.cse8 (let ((.cse9 (let ((.cse10 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse10)) (_ bv4294966273 32))) (_ bv1023 32))) .cse10)))) (concat ((_ extract 63 32) .cse9) ((_ extract 31 0) .cse9))))) (fp ((_ extract 63 63) .cse8) ((_ extract 62 52) .cse8) ((_ extract 51 0) .cse8))))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse7) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse6 .cse7) .cse7))) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) is different from false [2019-12-07 17:13:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:34,592 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:13:49,136 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_inv_~xi~0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_inv_~A c_ULTIMATE.start_inv_~xi~0) c_ULTIMATE.start_inv_~xi~0)))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))) is different from false [2019-12-07 17:13:51,253 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_inv_~xi~0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_inv_~A c_ULTIMATE.start_inv_~xi~0) c_ULTIMATE.start_inv_~xi~0)))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))) is different from true [2019-12-07 17:13:51,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:13:55,552 INFO L377 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 1060 treesize of output 1006 [2019-12-07 17:13:57,641 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:13:59,907 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:14:00,008 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 17:14:04,214 WARN L192 SmtUtils]: Spent 4.21 s on a formula simplification that was a NOOP. DAG size: 47 [2019-12-07 17:14:04,214 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:14:04,215 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:14:08,756 INFO L377 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 1060 treesize of output 1006 [2019-12-07 17:14:13,280 INFO L534 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-12-07 17:14:28,852 WARN L192 SmtUtils]: Spent 15.57 s on a formula simplification. DAG size of input: 78 DAG size of output: 47 [2019-12-07 17:14:28,853 INFO L614 ElimStorePlain]: treesize reduction 723, result has 49.5 percent of original size [2019-12-07 17:14:28,854 INFO L534 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:15:07,724 WARN L192 SmtUtils]: Spent 38.87 s on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-12-07 17:15:07,726 INFO L614 ElimStorePlain]: treesize reduction 735, result has 50.0 percent of original size [2019-12-07 17:15:07,735 INFO L377 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 709 treesize of output 691 [2019-12-07 17:15:07,743 INFO L534 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-12-07 17:15:28,459 WARN L192 SmtUtils]: Spent 20.71 s on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2019-12-07 17:15:28,460 INFO L614 ElimStorePlain]: treesize reduction 435, result has 49.2 percent of original size [2019-12-07 17:15:28,460 INFO L534 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:15:44,686 WARN L192 SmtUtils]: Spent 16.23 s on a formula simplification that was a NOOP. DAG size: 47 [2019-12-07 17:15:44,687 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:15:44,688 INFO L534 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:15:44,688 INFO L239 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:2171, output treesize:446 [2019-12-07 17:15:48,583 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (fp.leq (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse4)) (_ bv4294966273 32))) (_ bv1023 32))) .cse4)))) (concat ((_ extract 63 32) .cse3) ((_ extract 31 0) .cse3))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) .cse1))) ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)))))) is different from true [2019-12-07 17:15:48,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2019-12-07 17:15:48,584 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99640850] [2019-12-07 17:15:48,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:15:48,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2019-12-07 17:15:48,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112800984] [2019-12-07 17:15:48,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 17:15:48,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:15:48,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 17:15:48,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=12, NotChecked=48, Total=132 [2019-12-07 17:15:48,588 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 12 states. [2019-12-07 17:16:02,867 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 17:16:02,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:16:03,068 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 17:16:03,069 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:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) 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.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) 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:234) 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:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) 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:698) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:627) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:454) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) 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:205) ... 45 more [2019-12-07 17:16:03,074 INFO L168 Benchmark]: Toolchain (without parser) took 216000.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 951.0 MB in the beginning and 970.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 103.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:03,075 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:16:03,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.03 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:03,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:03,077 INFO L168 Benchmark]: Boogie Preprocessor took 22.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:03,078 INFO L168 Benchmark]: RCFGBuilder took 2330.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:03,078 INFO L168 Benchmark]: TraceAbstraction took 213399.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.7 MB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:03,080 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.03 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2330.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 213399.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.7 MB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 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:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...