./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/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 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 ................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/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 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 00:37:17,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:37:17,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:37:17,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:37:17,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:37:17,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:37:17,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:37:17,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:37:17,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:37:17,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:37:17,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:37:17,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:37:17,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:37:17,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:37:17,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:37:17,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:37:17,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:37:17,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:37:17,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:37:17,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:37:17,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:37:17,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:37:17,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:37:17,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:37:17,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:37:17,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:37:17,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:37:17,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:37:17,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:37:17,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:37:17,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:37:17,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:37:17,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:37:17,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:37:17,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:37:17,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:37:17,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:37:17,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:37:17,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:37:17,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:37:17,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:37:17,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:37:17,643 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:37:17,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:37:17,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:37:17,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:37:17,654 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:37:17,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:37:17,655 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:37:17,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:37:17,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:37:17,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:37:17,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:37:17,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:37:17,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:37:17,656 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:37:17,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:37:17,658 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:37:17,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:37:17,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:37:17,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:37:17,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:37:17,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:37:17,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:37:17,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:37:17,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:37:17,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:37:17,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:37:17,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:37:17,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:37:17,664 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/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 -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2019-11-20 00:37:17,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:37:17,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:37:17,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:37:17,820 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:37:17,820 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:37:17,820 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-11-20 00:37:17,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data/dd29b59d6/44323432a4e9427f9d2d5cecaf207a37/FLAG47548d943 [2019-11-20 00:37:18,261 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:37:18,262 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-11-20 00:37:18,269 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data/dd29b59d6/44323432a4e9427f9d2d5cecaf207a37/FLAG47548d943 [2019-11-20 00:37:18,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data/dd29b59d6/44323432a4e9427f9d2d5cecaf207a37 [2019-11-20 00:37:18,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:37:18,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:37:18,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:37:18,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:37:18,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:37:18,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:37:18" (1/1) ... [2019-11-20 00:37:18,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e89e589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:18, skipping insertion in model container [2019-11-20 00:37:18,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:37:18" (1/1) ... [2019-11-20 00:37:18,711 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:37:18,741 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:37:19,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:37:19,033 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:37:19,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:37:19,107 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:37:19,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19 WrapperNode [2019-11-20 00:37:19,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:37:19,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:37:19,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:37:19,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:37:19,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... [2019-11-20 00:37:19,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... [2019-11-20 00:37:19,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:37:19,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:37:19,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:37:19,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:37:19,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... [2019-11-20 00:37:19,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... [2019-11-20 00:37:19,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... [2019-11-20 00:37:19,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... [2019-11-20 00:37:19,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... [2019-11-20 00:37:19,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... [2019-11-20 00:37:19,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... [2019-11-20 00:37:19,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:37:19,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:37:19,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:37:19,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:37:19,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:37:19,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:37:19,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 00:37:19,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:37:19,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 00:37:19,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:37:19,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:37:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:37:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:37:19,793 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:37:19,793 INFO L285 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-20 00:37:19,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:19 BoogieIcfgContainer [2019-11-20 00:37:19,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:37:19,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:37:19,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:37:19,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:37:19,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:37:18" (1/3) ... [2019-11-20 00:37:19,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c58145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:37:19, skipping insertion in model container [2019-11-20 00:37:19,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:19" (2/3) ... [2019-11-20 00:37:19,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c58145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:37:19, skipping insertion in model container [2019-11-20 00:37:19,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:19" (3/3) ... [2019-11-20 00:37:19,801 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2019-11-20 00:37:19,809 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:37:19,815 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:37:19,824 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:37:19,843 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:37:19,843 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:37:19,843 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:37:19,843 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:37:19,843 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:37:19,843 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:37:19,843 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:37:19,844 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:37:19,856 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-20 00:37:19,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 00:37:19,860 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:37:19,861 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:37:19,861 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:37:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:37:19,865 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2019-11-20 00:37:19,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:37:19,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741254484] [2019-11-20 00:37:19,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:37:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:37:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:37:19,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741254484] [2019-11-20 00:37:19,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:37:19,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:37:19,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606435859] [2019-11-20 00:37:19,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:37:19,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:37:20,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:37:20,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:37:20,009 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-11-20 00:37:20,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:37:20,028 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2019-11-20 00:37:20,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:37:20,029 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-20 00:37:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:37:20,036 INFO L225 Difference]: With dead ends: 88 [2019-11-20 00:37:20,037 INFO L226 Difference]: Without dead ends: 42 [2019-11-20 00:37:20,040 INFO L630 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 [2019-11-20 00:37:20,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-20 00:37:20,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-20 00:37:20,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-20 00:37:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2019-11-20 00:37:20,070 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2019-11-20 00:37:20,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:37:20,071 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-11-20 00:37:20,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:37:20,071 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2019-11-20 00:37:20,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 00:37:20,072 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:37:20,072 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:37:20,072 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:37:20,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:37:20,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2019-11-20 00:37:20,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:37:20,073 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432153541] [2019-11-20 00:37:20,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:37:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:37:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:37:20,258 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:37:20,258 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 00:37:20,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:37:20 BoogieIcfgContainer [2019-11-20 00:37:20,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:37:20,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:37:20,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:37:20,325 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:37:20,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:19" (3/4) ... [2019-11-20 00:37:20,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 00:37:20,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:37:20,332 INFO L168 Benchmark]: Toolchain (without parser) took 1630.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -147.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:37:20,332 INFO L168 Benchmark]: CDTParser took 0.13 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. [2019-11-20 00:37:20,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.9 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -220.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:37:20,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:37:20,335 INFO L168 Benchmark]: Boogie Preprocessor took 38.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:37:20,335 INFO L168 Benchmark]: RCFGBuilder took 593.29 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: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:37:20,336 INFO L168 Benchmark]: TraceAbstraction took 528.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:37:20,336 INFO L168 Benchmark]: Witness Printer took 4.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:37:20,344 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 408.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.9 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -220.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 593.29 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: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 528.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 168, overapproximation of someBinaryArithmeticDOUBLEoperation at line 131, overapproximation of bitwiseAnd at line 167. Possible FailurePath: [L15-L24] 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; [L26] static const double zero = 0.0; [L109-L112] 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; [L114] 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] [L181] double x = 1.0 / 0.0; [L117] double y, z; [L118] __int32_t i, k, hx; [L119] __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] [L122] ieee_double_shape_type ew_u; [L123] ew_u.value = (x) [L124] EXPR ew_u.parts.msw [L124] (hx) = ew_u.parts.msw [L125] EXPR ew_u.parts.lsw [L125] (lx) = ew_u.parts.lsw [L128] 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] [L129] COND TRUE 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] [L130] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L131] return -two54_log10 / zero_log10; 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] double res = __ieee754_log10(x); [L160] __int32_t hx, 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] [L162] ieee_double_shape_type ew_u; [L163] ew_u.value = (x) [L164] EXPR ew_u.parts.msw [L164] (hx) = ew_u.parts.msw [L165] EXPR ew_u.parts.lsw [L165] (lx) = ew_u.parts.lsw [L167] hx &= 0x7fffffff [L168] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L169] hx = 0x7ff00000 - hx [L170] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 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] [L185] COND TRUE !isinf_double(res) [L186] __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, 45 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 00:37:22,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:37:22,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:37:22,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:37:22,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:37:22,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:37:22,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:37:22,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:37:22,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:37:22,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:37:22,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:37:22,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:37:22,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:37:22,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:37:22,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:37:22,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:37:22,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:37:22,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:37:22,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:37:22,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:37:22,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:37:22,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:37:22,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:37:22,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:37:22,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:37:22,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:37:22,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:37:22,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:37:22,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:37:22,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:37:22,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:37:22,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:37:22,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:37:22,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:37:22,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:37:22,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:37:22,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:37:22,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:37:22,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:37:22,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:37:22,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:37:22,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 00:37:22,231 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:37:22,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:37:22,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:37:22,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:37:22,233 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:37:22,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:37:22,234 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:37:22,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:37:22,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:37:22,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:37:22,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:37:22,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:37:22,235 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 00:37:22,235 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 00:37:22,236 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:37:22,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:37:22,236 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:37:22,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:37:22,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:37:22,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:37:22,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:37:22,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:37:22,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:37:22,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:37:22,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:37:22,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:37:22,239 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 00:37:22,239 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 00:37:22,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:37:22,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 00:37:22,240 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/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 -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2019-11-20 00:37:22,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:37:22,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:37:22,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:37:22,509 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:37:22,509 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:37:22,510 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-11-20 00:37:22,564 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data/136584a8d/b583a68183e34c88abde2eafd4dc441c/FLAGed8facc96 [2019-11-20 00:37:22,985 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:37:22,985 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-11-20 00:37:22,992 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data/136584a8d/b583a68183e34c88abde2eafd4dc441c/FLAGed8facc96 [2019-11-20 00:37:23,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/data/136584a8d/b583a68183e34c88abde2eafd4dc441c [2019-11-20 00:37:23,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:37:23,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:37:23,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:37:23,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:37:23,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:37:23,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623f41a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23, skipping insertion in model container [2019-11-20 00:37:23,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,024 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:37:23,059 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:37:23,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:37:23,250 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:37:23,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:37:23,389 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:37:23,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23 WrapperNode [2019-11-20 00:37:23,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:37:23,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:37:23,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:37:23,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:37:23,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:37:23,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:37:23,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:37:23,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:37:23,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... [2019-11-20 00:37:23,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:37:23,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:37:23,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:37:23,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:37:23,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:37:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 00:37:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 00:37:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:37:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 00:37:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:37:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:37:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 00:37:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:37:54,510 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:37:54,511 INFO L285 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-20 00:37:54,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:54 BoogieIcfgContainer [2019-11-20 00:37:54,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:37:54,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:37:54,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:37:54,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:37:54,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:37:23" (1/3) ... [2019-11-20 00:37:54,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618cab27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:37:54, skipping insertion in model container [2019-11-20 00:37:54,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:23" (2/3) ... [2019-11-20 00:37:54,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618cab27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:37:54, skipping insertion in model container [2019-11-20 00:37:54,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:54" (3/3) ... [2019-11-20 00:37:54,518 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2019-11-20 00:37:54,525 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:37:54,532 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:37:54,539 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:37:54,559 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:37:54,559 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:37:54,560 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:37:54,560 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:37:54,560 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:37:54,560 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:37:54,560 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:37:54,560 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:37:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-20 00:37:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 00:37:54,577 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:37:54,578 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:37:54,578 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:37:54,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:37:54,583 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2019-11-20 00:37:54,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:37:54,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037858001] [2019-11-20 00:37:54,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 00:37:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:37:55,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 00:37:55,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:37:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:37:55,425 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:37:55,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:37:55,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037858001] [2019-11-20 00:37:55,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:37:55,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 00:37:55,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488627523] [2019-11-20 00:37:55,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:37:55,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:37:55,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:37:55,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:37:55,446 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-11-20 00:37:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:37:55,466 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2019-11-20 00:37:55,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:37:55,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-20 00:37:55,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:37:55,477 INFO L225 Difference]: With dead ends: 88 [2019-11-20 00:37:55,478 INFO L226 Difference]: Without dead ends: 42 [2019-11-20 00:37:55,480 INFO L630 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 [2019-11-20 00:37:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-20 00:37:55,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-20 00:37:55,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-20 00:37:55,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2019-11-20 00:37:55,512 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2019-11-20 00:37:55,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:37:55,512 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-11-20 00:37:55,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:37:55,513 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2019-11-20 00:37:55,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 00:37:55,514 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:37:55,514 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:37:55,729 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 00:37:55,730 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:37:55,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:37:55,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2019-11-20 00:37:55,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:37:55,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124532868] [2019-11-20 00:37:55,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 00:37:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:37:56,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 00:37:56,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:37:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:37:56,665 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:37:56,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:37:56,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124532868] [2019-11-20 00:37:56,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:37:56,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 00:37:56,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531087811] [2019-11-20 00:37:56,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 00:37:56,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:37:56,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:37:56,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:37:56,725 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 6 states. [2019-11-20 00:37:56,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:37:56,860 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2019-11-20 00:37:56,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 00:37:56,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-20 00:37:56,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:37:56,866 INFO L225 Difference]: With dead ends: 51 [2019-11-20 00:37:56,866 INFO L226 Difference]: Without dead ends: 15 [2019-11-20 00:37:56,868 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 00:37:56,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-20 00:37:56,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-20 00:37:56,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 00:37:56,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-11-20 00:37:56,872 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2019-11-20 00:37:56,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:37:56,872 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-11-20 00:37:56,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 00:37:56,873 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-11-20 00:37:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 00:37:56,873 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:37:56,873 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:37:57,091 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 00:37:57,092 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:37:57,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:37:57,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356858, now seen corresponding path program 1 times [2019-11-20 00:37:57,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:37:57,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881331635] [2019-11-20 00:37:57,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 00:37:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:37:57,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 00:37:57,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:37:57,412 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 56 [2019-11-20 00:37:57,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 00:37:57,428 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2019-11-20 00:37:57,429 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 00:37:57,461 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:57,479 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2019-11-20 00:37:57,480 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 00:37:57,500 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:57,507 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:57,507 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 16 [2019-11-20 00:37:57,508 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 00:37:57,519 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:57,519 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:37:57,543 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:57,544 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 00:37:57,545 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:84, output treesize:41 [2019-11-20 00:37:57,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:37:57,756 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:37:57,999 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:57,999 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 54 [2019-11-20 00:37:58,020 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2019-11-20 00:37:58,020 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 00:37:58,034 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:58,049 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:58,050 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 16 [2019-11-20 00:37:58,051 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 00:37:58,054 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:58,054 INFO L496 ElimStorePlain]: Start of recursive call 2: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:37:58,076 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:37:58,077 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 00:37:58,077 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:101, output treesize:59 [2019-11-20 00:38:00,088 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_4_3 (_ BitVec 64)) (v_skolemized_v_prenex_5_3 (_ BitVec 64))) (let ((.cse1 ((_ extract 63 32) v_skolemized_v_prenex_4_3))) (or (not (= c_ULTIMATE.start_isinf_double_~x (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3)))) (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) .cse1) (bvlshr (let ((.cse2 ((_ extract 31 0) v_skolemized_v_prenex_5_3))) (bvor .cse2 (bvneg .cse2))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))) (not (= ((_ extract 63 32) v_skolemized_v_prenex_5_3) .cse1))))) is different from false [2019-11-20 00:38:00,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:38:00,115 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881331635] [2019-11-20 00:38:00,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:38:00,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 12 [2019-11-20 00:38:00,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848318889] [2019-11-20 00:38:00,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 00:38:00,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:38:00,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 00:38:00,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=89, Unknown=1, NotChecked=18, Total=132 [2019-11-20 00:38:00,117 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 12 states. [2019-11-20 00:38:00,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:38:00,118 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-11-20 00:38:00,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:38:00,119 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 14 [2019-11-20 00:38:00,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:38:00,119 INFO L225 Difference]: With dead ends: 15 [2019-11-20 00:38:00,119 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 00:38:00,120 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=24, Invalid=89, Unknown=1, NotChecked=18, Total=132 [2019-11-20 00:38:00,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 00:38:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 00:38:00,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 00:38:00,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 00:38:00,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-20 00:38:00,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:38:00,121 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:38:00,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 00:38:00,121 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:38:00,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:38:00,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 00:38:00,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 00:38:00,381 INFO L444 ceAbstractionStarter]: For program point L77(lines 77 82) no Hoare annotation was computed. [2019-11-20 00:38:00,381 INFO L444 ceAbstractionStarter]: For program point L44(lines 44 45) no Hoare annotation was computed. [2019-11-20 00:38:00,381 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 105) no Hoare annotation was computed. [2019-11-20 00:38:00,381 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 74) no Hoare annotation was computed. [2019-11-20 00:38:00,381 INFO L444 ceAbstractionStarter]: For program point L94(lines 94 106) no Hoare annotation was computed. [2019-11-20 00:38:00,381 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 00:38:00,381 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 00:38:00,382 INFO L444 ceAbstractionStarter]: For program point L185(lines 185 188) no Hoare annotation was computed. [2019-11-20 00:38:00,382 INFO L444 ceAbstractionStarter]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2019-11-20 00:38:00,382 INFO L440 ceAbstractionStarter]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2019-11-20 00:38:00,382 INFO L444 ceAbstractionStarter]: For program point L161-1(lines 161 166) no Hoare annotation was computed. [2019-11-20 00:38:00,382 INFO L440 ceAbstractionStarter]: At program point L161-2(lines 161 166) the Hoare annotation is: false [2019-11-20 00:38:00,382 INFO L444 ceAbstractionStarter]: For program point L161-3(lines 161 166) no Hoare annotation was computed. [2019-11-20 00:38:00,382 INFO L444 ceAbstractionStarter]: For program point L186(line 186) no Hoare annotation was computed. [2019-11-20 00:38:00,383 INFO L440 ceAbstractionStarter]: At program point L170(lines 159 171) the Hoare annotation is: false [2019-11-20 00:38:00,383 INFO L444 ceAbstractionStarter]: For program point L129(lines 129 141) no Hoare annotation was computed. [2019-11-20 00:38:00,383 INFO L444 ceAbstractionStarter]: For program point L129-1(lines 116 156) no Hoare annotation was computed. [2019-11-20 00:38:00,383 INFO L444 ceAbstractionStarter]: For program point L96(lines 96 100) no Hoare annotation was computed. [2019-11-20 00:38:00,383 INFO L444 ceAbstractionStarter]: For program point L121-1(lines 121 126) no Hoare annotation was computed. [2019-11-20 00:38:00,383 INFO L440 ceAbstractionStarter]: At program point L121-2(lines 121 126) the Hoare annotation is: false [2019-11-20 00:38:00,383 INFO L444 ceAbstractionStarter]: For program point L121-3(lines 121 126) no Hoare annotation was computed. [2019-11-20 00:38:00,384 INFO L440 ceAbstractionStarter]: At program point L105(lines 28 107) the Hoare annotation is: false [2019-11-20 00:38:00,384 INFO L444 ceAbstractionStarter]: For program point L130(lines 130 131) no Hoare annotation was computed. [2019-11-20 00:38:00,384 INFO L440 ceAbstractionStarter]: At program point L155(lines 116 156) the Hoare annotation is: false [2019-11-20 00:38:00,384 INFO L444 ceAbstractionStarter]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2019-11-20 00:38:00,384 INFO L440 ceAbstractionStarter]: At program point L48-2(lines 48 52) the Hoare annotation is: false [2019-11-20 00:38:00,384 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 00:38:00,384 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 186) no Hoare annotation was computed. [2019-11-20 00:38:00,385 INFO L444 ceAbstractionStarter]: For program point L148-1(lines 148 153) no Hoare annotation was computed. [2019-11-20 00:38:00,385 INFO L440 ceAbstractionStarter]: At program point L148-2(lines 148 153) the Hoare annotation is: false [2019-11-20 00:38:00,385 INFO L444 ceAbstractionStarter]: For program point L148-3(lines 148 153) no Hoare annotation was computed. [2019-11-20 00:38:00,385 INFO L444 ceAbstractionStarter]: For program point L41(lines 41 53) no Hoare annotation was computed. [2019-11-20 00:38:00,385 INFO L444 ceAbstractionStarter]: For program point L41-1(lines 28 107) no Hoare annotation was computed. [2019-11-20 00:38:00,385 INFO L444 ceAbstractionStarter]: For program point L132(lines 132 133) no Hoare annotation was computed. [2019-11-20 00:38:00,385 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 00:38:00,385 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 33 38) no Hoare annotation was computed. [2019-11-20 00:38:00,386 INFO L440 ceAbstractionStarter]: At program point L33-2(lines 33 38) the Hoare annotation is: false [2019-11-20 00:38:00,386 INFO L444 ceAbstractionStarter]: For program point L33-3(lines 33 38) no Hoare annotation was computed. [2019-11-20 00:38:00,386 INFO L447 ceAbstractionStarter]: At program point L190(lines 173 191) the Hoare annotation is: true [2019-11-20 00:38:00,386 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-11-20 00:38:00,386 INFO L444 ceAbstractionStarter]: For program point L67(lines 67 83) no Hoare annotation was computed. [2019-11-20 00:38:00,386 INFO L444 ceAbstractionStarter]: For program point L59-1(lines 59 64) no Hoare annotation was computed. [2019-11-20 00:38:00,386 INFO L440 ceAbstractionStarter]: At program point L59-2(lines 59 64) the Hoare annotation is: false [2019-11-20 00:38:00,386 INFO L444 ceAbstractionStarter]: For program point L59-3(lines 59 64) no Hoare annotation was computed. [2019-11-20 00:38:00,387 INFO L444 ceAbstractionStarter]: For program point L68(lines 68 75) no Hoare annotation was computed. [2019-11-20 00:38:00,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:38:00 BoogieIcfgContainer [2019-11-20 00:38:00,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:38:00,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:38:00,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:38:00,401 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:38:00,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:54" (3/4) ... [2019-11-20 00:38:00,407 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 00:38:00,428 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2019-11-20 00:38:00,429 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 00:38:00,430 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 00:38:00,521 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a1506743-757f-4ba3-a62b-89db79f3a032/bin/uautomizer/witness.graphml [2019-11-20 00:38:00,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:38:00,523 INFO L168 Benchmark]: Toolchain (without parser) took 37513.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 955.1 MB in the beginning and 971.9 MB in the end (delta: -16.8 MB). Peak memory consumption was 147.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:38:00,523 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:38:00,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 955.1 MB in the beginning and 1.2 GB in the end (delta: -198.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:38:00,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:38:00,524 INFO L168 Benchmark]: Boogie Preprocessor took 56.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:38:00,524 INFO L168 Benchmark]: RCFGBuilder took 31008.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:38:00,525 INFO L168 Benchmark]: TraceAbstraction took 5887.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.5 MB in the end (delta: 126.5 MB). Peak memory consumption was 126.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:38:00,525 INFO L168 Benchmark]: Witness Printer took 121.66 ms. Allocated memory is still 1.2 GB. Free memory was 978.5 MB in the beginning and 971.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:38:00,527 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 955.1 MB in the beginning and 1.2 GB in the end (delta: -198.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 31008.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5887.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.5 MB in the end (delta: 126.5 MB). Peak memory consumption was 126.5 MB. Max. memory is 11.5 GB. * Witness Printer took 121.66 ms. Allocated memory is still 1.2 GB. Free memory was 978.5 MB in the beginning and 971.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 186]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 159]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 5.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 33 SDslu, 3 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 11 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 74 ConstructedInterpolants, 9 QuantifiedInterpolants, 7665 SizeOfPredicates, 16 NumberOfNonLiveVariables, 181 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 proved your program to be correct! Received shutdown request...