./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/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 78c6d2d68aa498895f40ed0a4a24644b21119801 ..................................................................................................................................................................................................................................................................................................................... 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_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/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 78c6d2d68aa498895f40ed0a4a24644b21119801 ............................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:24:41,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:24:41,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:24:41,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:24:41,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:24:41,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:24:41,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:24:41,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:24:41,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:24:41,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:24:41,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:24:41,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:24:41,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:24:41,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:24:41,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:24:41,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:24:41,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:24:41,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:24:41,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:24:41,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:24:41,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:24:41,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:24:41,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:24:41,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:24:41,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:24:41,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:24:41,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:24:41,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:24:41,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:24:41,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:24:41,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:24:41,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:24:41,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:24:41,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:24:41,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:24:41,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:24:41,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:24:41,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:24:41,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:24:41,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:24:41,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:24:41,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:24:41,659 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:24:41,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:24:41,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:24:41,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:24:41,662 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:24:41,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:24:41,662 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:24:41,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:24:41,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:24:41,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:24:41,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:24:41,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:24:41,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:24:41,665 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:24:41,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:24:41,665 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:24:41,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:24:41,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:24:41,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:24:41,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:24:41,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:24:41,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:24:41,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:24:41,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:24:41,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:24:41,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:24:41,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:24:41,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:24:41,669 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_077cd044-9285-4f35-b36a-ea245d5adece/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 -> 78c6d2d68aa498895f40ed0a4a24644b21119801 [2019-11-15 21:24:41,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:24:41,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:24:41,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:24:41,720 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:24:41,721 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:24:41,721 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2019-11-15 21:24:41,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data/91a696938/2b0729a7edd94db8897ac02187fbad66/FLAGbeefaac71 [2019-11-15 21:24:42,325 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:24:42,326 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2019-11-15 21:24:42,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data/91a696938/2b0729a7edd94db8897ac02187fbad66/FLAGbeefaac71 [2019-11-15 21:24:42,595 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data/91a696938/2b0729a7edd94db8897ac02187fbad66 [2019-11-15 21:24:42,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:24:42,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:24:42,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:24:42,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:24:42,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:24:42,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:24:42" (1/1) ... [2019-11-15 21:24:42,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd041c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:42, skipping insertion in model container [2019-11-15 21:24:42,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:24:42" (1/1) ... [2019-11-15 21:24:42,628 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:24:42,655 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:24:42,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:24:42,972 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:24:43,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:24:43,065 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:24:43,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43 WrapperNode [2019-11-15 21:24:43,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:24:43,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:24:43,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:24:43,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:24:43,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... [2019-11-15 21:24:43,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... [2019-11-15 21:24:43,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:24:43,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:24:43,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:24:43,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:24:43,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... [2019-11-15 21:24:43,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... [2019-11-15 21:24:43,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... [2019-11-15 21:24:43,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... [2019-11-15 21:24:43,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... [2019-11-15 21:24:43,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... [2019-11-15 21:24:43,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... [2019-11-15 21:24:43,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:24:43,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:24:43,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:24:43,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:24:43,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/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 [2019-11-15 21:24:43,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:24:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 21:24:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:24:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 21:24:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:24:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:24:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:24:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:24:43,991 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:24:43,991 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-15 21:24:43,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:24:43 BoogieIcfgContainer [2019-11-15 21:24:43,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:24:43,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:24:43,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:24:43,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:24:43,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:24:42" (1/3) ... [2019-11-15 21:24:43,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395e736d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:24:43, skipping insertion in model container [2019-11-15 21:24:44,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:43" (2/3) ... [2019-11-15 21:24:44,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395e736d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:24:44, skipping insertion in model container [2019-11-15 21:24:44,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:24:43" (3/3) ... [2019-11-15 21:24:44,002 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2019-11-15 21:24:44,011 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:24:44,018 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:24:44,029 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:24:44,057 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:24:44,057 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:24:44,057 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:24:44,058 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:24:44,058 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:24:44,058 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:24:44,058 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:24:44,058 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:24:44,076 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-15 21:24:44,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 21:24:44,084 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:24:44,085 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:24:44,087 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:24:44,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:24:44,094 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2019-11-15 21:24:44,104 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:24:44,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984263656] [2019-11-15 21:24:44,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:24:44,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:24:44,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:24:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:24:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:24:44,237 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984263656] [2019-11-15 21:24:44,238 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:24:44,238 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:24:44,239 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084584922] [2019-11-15 21:24:44,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 21:24:44,244 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:24:44,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 21:24:44,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 21:24:44,260 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-11-15 21:24:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:24:44,283 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2019-11-15 21:24:44,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 21:24:44,284 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-15 21:24:44,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:24:44,298 INFO L225 Difference]: With dead ends: 88 [2019-11-15 21:24:44,298 INFO L226 Difference]: Without dead ends: 42 [2019-11-15 21:24:44,301 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 21:24:44,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-15 21:24:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-15 21:24:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-15 21:24:44,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2019-11-15 21:24:44,347 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2019-11-15 21:24:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:24:44,347 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-11-15 21:24:44,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 21:24:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2019-11-15 21:24:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 21:24:44,348 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:24:44,349 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:24:44,349 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:24:44,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:24:44,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2019-11-15 21:24:44,350 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:24:44,350 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439343419] [2019-11-15 21:24:44,350 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:24:44,350 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:24:44,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:24:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:24:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:24:44,626 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:24:44,627 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:24:44,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:24:44 BoogieIcfgContainer [2019-11-15 21:24:44,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:24:44,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:24:44,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:24:44,680 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:24:44,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:24:43" (3/4) ... [2019-11-15 21:24:44,686 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 21:24:44,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:24:44,689 INFO L168 Benchmark]: Toolchain (without parser) took 2087.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -112.3 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:44,690 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:24:44,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:44,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:44,694 INFO L168 Benchmark]: Boogie Preprocessor took 49.36 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. [2019-11-15 21:24:44,695 INFO L168 Benchmark]: RCFGBuilder took 812.37 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: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:44,696 INFO L168 Benchmark]: TraceAbstraction took 683.24 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:24:44,697 INFO L168 Benchmark]: Witness Printer took 6.85 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. [2019-11-15 21:24:44,706 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 464.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.36 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 812.37 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: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 683.24 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.85 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 27, overapproximation of someUnaryDOUBLEoperation at line 181, overapproximation of someBinaryArithmeticDOUBLEoperation at line 148, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L32-L41] 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; [L43] static const double zero = 0.0; [L126-L129] 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; [L131] 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 = -0.0; [L134] double y, z; [L135] __int32_t i, k, hx; [L136] __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] [L139] ieee_double_shape_type ew_u; [L140] ew_u.value = (x) [L141] EXPR ew_u.parts.msw [L141] (hx) = ew_u.parts.msw [L142] EXPR ew_u.parts.lsw [L142] (lx) = ew_u.parts.lsw [L145] 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] [L146] 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] [L147] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L148] 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); [L19] __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] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] 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: 0.6s, 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, 0.1s 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-cad4683 [2019-11-15 21:24:47,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:24:47,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:24:47,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:24:47,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:24:47,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:24:47,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:24:47,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:24:47,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:24:47,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:24:47,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:24:47,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:24:47,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:24:47,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:24:47,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:24:47,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:24:47,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:24:47,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:24:47,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:24:47,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:24:47,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:24:47,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:24:47,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:24:47,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:24:47,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:24:47,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:24:47,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:24:47,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:24:47,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:24:47,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:24:47,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:24:47,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:24:47,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:24:47,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:24:47,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:24:47,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:24:47,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:24:47,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:24:47,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:24:47,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:24:47,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:24:47,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 21:24:47,421 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:24:47,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:24:47,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:24:47,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:24:47,424 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:24:47,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:24:47,424 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:24:47,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:24:47,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:24:47,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:24:47,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:24:47,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:24:47,427 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 21:24:47,427 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 21:24:47,428 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:24:47,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:24:47,428 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:24:47,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:24:47,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:24:47,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:24:47,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:24:47,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:24:47,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:24:47,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:24:47,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:24:47,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:24:47,432 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 21:24:47,432 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 21:24:47,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:24:47,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 21:24:47,433 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_077cd044-9285-4f35-b36a-ea245d5adece/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 -> 78c6d2d68aa498895f40ed0a4a24644b21119801 [2019-11-15 21:24:47,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:24:47,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:24:47,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:24:47,528 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:24:47,528 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:24:47,529 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2019-11-15 21:24:47,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data/8165a2fdd/801d635f1ff24180bdb0871b79210dae/FLAG84453a969 [2019-11-15 21:24:48,177 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:24:48,178 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2019-11-15 21:24:48,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data/8165a2fdd/801d635f1ff24180bdb0871b79210dae/FLAG84453a969 [2019-11-15 21:24:48,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/bin/uautomizer/data/8165a2fdd/801d635f1ff24180bdb0871b79210dae [2019-11-15 21:24:48,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:24:48,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:24:48,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:24:48,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:24:48,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:24:48,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:24:48" (1/1) ... [2019-11-15 21:24:48,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac80e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:48, skipping insertion in model container [2019-11-15 21:24:48,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:24:48" (1/1) ... [2019-11-15 21:24:48,487 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:24:48,515 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:24:48,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:24:48,854 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:24:49,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:24:49,079 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:24:49,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49 WrapperNode [2019-11-15 21:24:49,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:24:49,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:24:49,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:24:49,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:24:49,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... [2019-11-15 21:24:49,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... [2019-11-15 21:24:49,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:24:49,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:24:49,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:24:49,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:24:49,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... [2019-11-15 21:24:49,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... [2019-11-15 21:24:49,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... [2019-11-15 21:24:49,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... [2019-11-15 21:24:49,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... [2019-11-15 21:24:49,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... [2019-11-15 21:24:49,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... [2019-11-15 21:24:49,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:24:49,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:24:49,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:24:49,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:24:49,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/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 [2019-11-15 21:24:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 21:24:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 21:24:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:24:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 21:24:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:24:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:24:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 21:24:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:25:21,725 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:25:21,725 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-15 21:25:21,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:25:21 BoogieIcfgContainer [2019-11-15 21:25:21,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:25:21,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:25:21,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:25:21,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:25:21,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:24:48" (1/3) ... [2019-11-15 21:25:21,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6035253c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:25:21, skipping insertion in model container [2019-11-15 21:25:21,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:24:49" (2/3) ... [2019-11-15 21:25:21,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6035253c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:25:21, skipping insertion in model container [2019-11-15 21:25:21,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:25:21" (3/3) ... [2019-11-15 21:25:21,739 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2019-11-15 21:25:21,747 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:25:21,755 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:25:21,765 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:25:21,793 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:25:21,794 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:25:21,794 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:25:21,794 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:25:21,795 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:25:21,795 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:25:21,795 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:25:21,796 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:25:21,812 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-15 21:25:21,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 21:25:21,819 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:25:21,821 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:25:21,823 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:25:21,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:25:21,829 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2019-11-15 21:25:21,840 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:25:21,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966087818] [2019-11-15 21:25:21,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/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 [2019-11-15 21:25:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:25:22,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 21:25:22,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:25:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:25:22,982 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 21:25:22,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:25:22,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966087818] [2019-11-15 21:25:22,989 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:25:22,989 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 21:25:22,989 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209625118] [2019-11-15 21:25:22,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 21:25:22,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 21:25:23,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 21:25:23,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 21:25:23,007 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-11-15 21:25:23,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:25:23,029 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2019-11-15 21:25:23,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 21:25:23,030 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-15 21:25:23,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:25:23,040 INFO L225 Difference]: With dead ends: 88 [2019-11-15 21:25:23,040 INFO L226 Difference]: Without dead ends: 42 [2019-11-15 21:25:23,044 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 21:25:23,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-15 21:25:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-15 21:25:23,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-15 21:25:23,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2019-11-15 21:25:23,081 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2019-11-15 21:25:23,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:25:23,081 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-11-15 21:25:23,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 21:25:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2019-11-15 21:25:23,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 21:25:23,083 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:25:23,083 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:25:23,296 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 21:25:23,297 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:25:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:25:23,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2019-11-15 21:25:23,298 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:25:23,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714387795] [2019-11-15 21:25:23,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_077cd044-9285-4f35-b36a-ea245d5adece/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 [2019-11-15 21:25:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:25:24,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-15 21:25:24,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:25:24,844 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 21:25:24,844 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 21:25:24,852 INFO L168 Benchmark]: Toolchain (without parser) took 36383.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -92.1 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:25:24,853 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:25:24,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -193.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:25:24,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:25:24,855 INFO L168 Benchmark]: Boogie Preprocessor took 65.61 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. [2019-11-15 21:25:24,856 INFO L168 Benchmark]: RCFGBuilder took 32502.38 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:25:24,857 INFO L168 Benchmark]: TraceAbstraction took 3121.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:25:24,860 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 611.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -193.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.61 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 32502.38 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3121.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...