./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/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 cc541d75f5affce4b825454cfd79356341e493a9 ............................................................................................................................................................................................................................................................................................................................................................. 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/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/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 cc541d75f5affce4b825454cfd79356341e493a9 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:17,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:17,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:17,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:17,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:17,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:17,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:17,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:17,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:17,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:17,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:17,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:17,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:17,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:17,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:17,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:17,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:17,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:17,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:17,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:17,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:17,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:17,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:17,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:17,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:17,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:17,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:17,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:17,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:17,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:17,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:17,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:17,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:17,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:17,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:17,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:17,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:17,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:17,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:17,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:17,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:17,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:56:17,679 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:17,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:17,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:17,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:17,681 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:17,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:17,681 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:17,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:17,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:17,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:17,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:17,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:17,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:17,682 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:17,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:17,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:17,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:17,685 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/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/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 -> cc541d75f5affce4b825454cfd79356341e493a9 [2019-10-22 08:56:17,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:17,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:17,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:17,736 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:17,737 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:17,738 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-10-22 08:56:17,793 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data/3b4dcbf68/7acf39595e5e482da230b8ccd90e1da0/FLAGc66c0c374 [2019-10-22 08:56:18,209 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:18,210 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-10-22 08:56:18,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data/3b4dcbf68/7acf39595e5e482da230b8ccd90e1da0/FLAGc66c0c374 [2019-10-22 08:56:18,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data/3b4dcbf68/7acf39595e5e482da230b8ccd90e1da0 [2019-10-22 08:56:18,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:18,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:18,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:18,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:18,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:18,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b32060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18, skipping insertion in model container [2019-10-22 08:56:18,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,612 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:18,636 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:18,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:18,878 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:18,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:18,939 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:18,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18 WrapperNode [2019-10-22 08:56:18,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:18,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:18,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:18,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:18,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:18,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:18,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:18,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:18,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:19,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:19,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:19,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:19,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:19,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:19,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:19,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:19,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:19,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:19,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/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 [2019-10-22 08:56:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:56:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 08:56:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:56:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 08:56:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:19,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:56:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:19,502 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:19,503 INFO L284 CfgBuilder]: Removed 26 assume(true) statements. [2019-10-22 08:56:19,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:19 BoogieIcfgContainer [2019-10-22 08:56:19,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:19,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:19,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:19,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:19,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:18" (1/3) ... [2019-10-22 08:56:19,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c19d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:19, skipping insertion in model container [2019-10-22 08:56:19,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (2/3) ... [2019-10-22 08:56:19,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c19d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:19, skipping insertion in model container [2019-10-22 08:56:19,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:19" (3/3) ... [2019-10-22 08:56:19,511 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2019-10-22 08:56:19,520 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:19,526 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:19,536 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:19,557 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:19,557 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:19,557 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:19,558 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:19,558 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:19,558 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:19,558 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:19,558 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:19,572 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-10-22 08:56:19,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:56:19,578 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:19,579 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:19,582 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:19,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:19,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2019-10-22 08:56:19,594 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:19,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945747587] [2019-10-22 08:56:19,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:19,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:19,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:19,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945747587] [2019-10-22 08:56:19,695 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:19,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:56:19,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052377739] [2019-10-22 08:56:19,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:56:19,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:19,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:56:19,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:56:19,711 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2019-10-22 08:56:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:19,727 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2019-10-22 08:56:19,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:56:19,728 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-22 08:56:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:19,737 INFO L225 Difference]: With dead ends: 95 [2019-10-22 08:56:19,738 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 08:56:19,740 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:56:19,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 08:56:19,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-22 08:56:19,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 08:56:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2019-10-22 08:56:19,772 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2019-10-22 08:56:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:19,773 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2019-10-22 08:56:19,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:56:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2019-10-22 08:56:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:56:19,773 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:19,774 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:19,774 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:19,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:19,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2019-10-22 08:56:19,774 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:19,775 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224293879] [2019-10-22 08:56:19,775 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:19,775 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:19,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:19,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224293879] [2019-10-22 08:56:19,830 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:19,830 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:19,830 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65433115] [2019-10-22 08:56:19,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:56:19,832 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:19,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:19,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:19,833 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2019-10-22 08:56:19,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:19,853 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2019-10-22 08:56:19,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:19,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-22 08:56:19,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:19,855 INFO L225 Difference]: With dead ends: 83 [2019-10-22 08:56:19,855 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 08:56:19,856 INFO L600 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 [2019-10-22 08:56:19,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 08:56:19,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-22 08:56:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 08:56:19,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2019-10-22 08:56:19,861 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2019-10-22 08:56:19,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:19,862 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2019-10-22 08:56:19,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:56:19,862 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2019-10-22 08:56:19,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:56:19,862 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:19,863 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:19,863 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:19,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:19,863 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2019-10-22 08:56:19,864 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:19,864 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142692118] [2019-10-22 08:56:19,864 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:19,864 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:19,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:20,052 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:20,052 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:56:20,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:20 BoogieIcfgContainer [2019-10-22 08:56:20,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:20,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:20,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:20,110 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:20,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:19" (3/4) ... [2019-10-22 08:56:20,114 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:56:20,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:20,118 INFO L168 Benchmark]: Toolchain (without parser) took 1519.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -79.2 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,118 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:20,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.25 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,120 INFO L168 Benchmark]: Boogie Preprocessor took 53.23 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. [2019-10-22 08:56:20,120 INFO L168 Benchmark]: RCFGBuilder took 465.89 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: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,121 INFO L168 Benchmark]: TraceAbstraction took 604.98 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: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,121 INFO L168 Benchmark]: Witness Printer took 4.51 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. [2019-10-22 08:56:20,125 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.25 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.23 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. * RCFGBuilder took 465.89 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: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 604.98 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: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.51 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: 188]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 161, overapproximation of bitwiseAnd at line 170, overapproximation of someBinaryArithmeticDOUBLEoperation at line 145. Possible FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L180] double x = __VERIFIER_nondet_double(); [L182] x < 0 && isfinite_double(x) [L164] __int32_t hx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] x < 0 && isfinite_double(x) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] COND TRUE x < 0 && isfinite_double(x) [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L131] COND FALSE !(hx < 0x00100000) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L144] COND TRUE hx >= 0x7ff00000 [L145] return x + x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] double res = __ieee754_log10(x); [L161] return x != x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L187] COND TRUE !isnan_double(res) [L188] __VERIFIER_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 125 SDtfs, 0 SDslu, 55 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 0.1.24-cad4683 [2019-10-22 08:56:22,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:22,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:22,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:22,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:22,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:22,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:22,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:22,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:22,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:22,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:22,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:22,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:22,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:22,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:22,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:22,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:22,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:22,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:22,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:22,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:22,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:22,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:22,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:22,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:22,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:22,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:22,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:22,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:22,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:22,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:22,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:22,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:22,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:22,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:22,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:22,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:22,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:22,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:22,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:22,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:22,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:56:22,213 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:22,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:22,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:22,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:22,215 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:22,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:22,215 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:22,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:22,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:22,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:22,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:22,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:22,216 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:56:22,216 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:56:22,216 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:22,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:22,217 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:22,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:22,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:22,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:22,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:22,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:22,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:22,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:22,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:22,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:22,218 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:56:22,218 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:56:22,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:22,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:56:22,219 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/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/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 -> cc541d75f5affce4b825454cfd79356341e493a9 [2019-10-22 08:56:22,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:22,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:22,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:22,265 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:22,265 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:22,266 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-10-22 08:56:22,315 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data/d6c45d41a/56399e6b0cc044eba651449a96fd04ee/FLAG2d392ad0e [2019-10-22 08:56:22,741 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:22,743 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-10-22 08:56:22,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data/d6c45d41a/56399e6b0cc044eba651449a96fd04ee/FLAG2d392ad0e [2019-10-22 08:56:22,765 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/data/d6c45d41a/56399e6b0cc044eba651449a96fd04ee [2019-10-22 08:56:22,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:22,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:22,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:22,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:22,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:22,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:22" (1/1) ... [2019-10-22 08:56:22,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541aa579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:22, skipping insertion in model container [2019-10-22 08:56:22,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:22" (1/1) ... [2019-10-22 08:56:22,785 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:22,809 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:23,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:23,044 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:23,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:23,183 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:23,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23 WrapperNode [2019-10-22 08:56:23,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:23,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:23,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:23,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:23,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... [2019-10-22 08:56:23,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... [2019-10-22 08:56:23,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:23,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:23,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:23,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:23,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... [2019-10-22 08:56:23,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... [2019-10-22 08:56:23,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... [2019-10-22 08:56:23,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... [2019-10-22 08:56:23,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... [2019-10-22 08:56:23,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... [2019-10-22 08:56:23,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... [2019-10-22 08:56:23,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:23,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:23,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:23,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:23,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/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 [2019-10-22 08:56:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-10-22 08:56:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-10-22 08:56:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:56:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:56:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:56:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:50,433 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:50,433 INFO L284 CfgBuilder]: Removed 26 assume(true) statements. [2019-10-22 08:56:50,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:50 BoogieIcfgContainer [2019-10-22 08:56:50,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:50,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:50,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:50,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:50,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:22" (1/3) ... [2019-10-22 08:56:50,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174688fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:50, skipping insertion in model container [2019-10-22 08:56:50,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:23" (2/3) ... [2019-10-22 08:56:50,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174688fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:50, skipping insertion in model container [2019-10-22 08:56:50,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:50" (3/3) ... [2019-10-22 08:56:50,441 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2019-10-22 08:56:50,450 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:50,461 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:50,472 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:50,502 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:50,502 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:50,502 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:50,502 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:50,503 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:50,503 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:50,503 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:50,503 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:50,514 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-10-22 08:56:50,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:56:50,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:50,520 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:50,521 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:50,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:50,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2019-10-22 08:56:50,533 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:50,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733334560] [2019-10-22 08:56:50,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/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 [2019-10-22 08:56:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:50,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 08:56:50,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:50,684 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:56:50,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:50,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733334560] [2019-10-22 08:56:50,695 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:50,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 08:56:50,696 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832775904] [2019-10-22 08:56:50,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:56:50,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:56:50,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:56:50,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:56:50,713 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2019-10-22 08:56:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:50,731 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2019-10-22 08:56:50,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:56:50,733 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-22 08:56:50,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:50,743 INFO L225 Difference]: With dead ends: 95 [2019-10-22 08:56:50,743 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 08:56:50,746 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:56:50,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 08:56:50,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-22 08:56:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 08:56:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2019-10-22 08:56:50,781 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2019-10-22 08:56:50,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:50,781 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2019-10-22 08:56:50,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:56:50,781 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2019-10-22 08:56:50,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:56:50,782 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:50,782 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:50,983 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:56:50,983 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:50,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:50,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2019-10-22 08:56:50,984 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:50,985 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707226281] [2019-10-22 08:56:50,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/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 [2019-10-22 08:56:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:51,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:56:51,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:51,143 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:56:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:51,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707226281] [2019-10-22 08:56:51,146 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:51,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 08:56:51,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059616701] [2019-10-22 08:56:51,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:56:51,148 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:56:51,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:51,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:51,149 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2019-10-22 08:56:51,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:51,169 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2019-10-22 08:56:51,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:51,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-22 08:56:51,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:51,171 INFO L225 Difference]: With dead ends: 83 [2019-10-22 08:56:51,171 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 08:56:51,172 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:51,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 08:56:51,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-22 08:56:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 08:56:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2019-10-22 08:56:51,178 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2019-10-22 08:56:51,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:51,178 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2019-10-22 08:56:51,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:56:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2019-10-22 08:56:51,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:56:51,179 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:51,180 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:51,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 08:56:51,388 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:51,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:51,389 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2019-10-22 08:56:51,389 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:51,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658860793] [2019-10-22 08:56:51,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-10-22 08:56:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:51,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:56:51,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:51,841 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:56:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:51,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658860793] [2019-10-22 08:56:51,989 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:51,989 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-10-22 08:56:51,989 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497461422] [2019-10-22 08:56:51,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 08:56:51,990 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:56:51,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 08:56:51,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:56:51,990 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 10 states. [2019-10-22 08:56:53,575 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 19 [2019-10-22 08:56:57,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:57,990 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2019-10-22 08:56:58,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:58,015 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-10-22 08:56:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:58,015 INFO L225 Difference]: With dead ends: 50 [2019-10-22 08:56:58,016 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 08:56:58,016 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:56:58,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 08:56:58,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-22 08:56:58,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 08:56:58,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-22 08:56:58,020 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2019-10-22 08:56:58,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:58,020 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-10-22 08:56:58,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 08:56:58,020 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-22 08:56:58,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:56:58,021 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:58,021 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:58,221 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 08:56:58,222 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:58,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:58,222 INFO L82 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2019-10-22 08:56:58,222 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:58,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685217223] [2019-10-22 08:56:58,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ad6c18d-9f73-4fe2-91c3-79905bfe7781/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-10-22 08:56:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:59,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 08:56:59,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:59,498 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-10-22 08:56:59,499 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 08:56:59,503 INFO L168 Benchmark]: Toolchain (without parser) took 36733.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 945.6 MB in the beginning and 990.5 MB in the end (delta: -44.9 MB). Peak memory consumption was 124.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:59,504 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:59,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -213.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:59,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:59,505 INFO L168 Benchmark]: Boogie Preprocessor took 50.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:59,506 INFO L168 Benchmark]: RCFGBuilder took 27151.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:59,507 INFO L168 Benchmark]: TraceAbstraction took 9066.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.5 MB in the end (delta: 116.4 MB). Peak memory consumption was 116.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:59,512 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 414.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -213.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 27151.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9066.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.5 MB in the end (delta: 116.4 MB). Peak memory consumption was 116.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...