./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.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_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/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 b4c34662463e17ac30593a66de4e00eb1d619b62 ............................................................................................................................................................................................................................................................................................................................ 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_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/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 b4c34662463e17ac30593a66de4e00eb1d619b62 .............................................................................................................................................................................................................................................................................................................. 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 20:55:50,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:55:50,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:55:50,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:55:50,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:55:50,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:55:50,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:55:50,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:55:50,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:55:50,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:55:50,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:55:50,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:55:50,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:55:50,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:55:50,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:55:50,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:55:50,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:55:50,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:55:50,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:55:50,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:55:50,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:55:50,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:55:50,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:55:50,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:55:50,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:55:50,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:55:50,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:55:50,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:55:50,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:55:50,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:55:50,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:55:50,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:55:50,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:55:50,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:55:50,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:55:50,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:55:50,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:55:50,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:55:50,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:55:50,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:55:50,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:55:50,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:55:50,816 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:55:50,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:55:50,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:55:50,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:55:50,818 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:55:50,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:55:50,818 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:55:50,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:55:50,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:55:50,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:55:50,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:55:50,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:55:50,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:55:50,820 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:55:50,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:55:50,821 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:55:50,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:55:50,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:55:50,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:55:50,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:55:50,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:55:50,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:55:50,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:55:50,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:55:50,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:55:50,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:55:50,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:55:50,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:55:50,824 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_fddbf004-39f1-4f73-a8ab-51fc2f3da618/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 -> b4c34662463e17ac30593a66de4e00eb1d619b62 [2019-11-15 20:55:50,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:55:50,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:55:50,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:55:50,895 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:55:50,896 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:55:50,896 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.c [2019-11-15 20:55:50,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data/b40664f16/bebed08105504432b3b40f1d97a0d116/FLAGcf12e98e3 [2019-11-15 20:55:51,329 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:55:51,329 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/sv-benchmarks/c/float-newlib/double_req_bl_0685a.c [2019-11-15 20:55:51,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data/b40664f16/bebed08105504432b3b40f1d97a0d116/FLAGcf12e98e3 [2019-11-15 20:55:51,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data/b40664f16/bebed08105504432b3b40f1d97a0d116 [2019-11-15 20:55:51,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:55:51,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:55:51,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:55:51,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:55:51,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:55:51,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:55:51" (1/1) ... [2019-11-15 20:55:51,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10497a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:51, skipping insertion in model container [2019-11-15 20:55:51,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:55:51" (1/1) ... [2019-11-15 20:55:51,688 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:55:51,737 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:55:52,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:55:52,126 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:55:52,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:55:52,211 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:55:52,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52 WrapperNode [2019-11-15 20:55:52,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:55:52,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:55:52,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:55:52,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:55:52,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... [2019-11-15 20:55:52,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... [2019-11-15 20:55:52,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:55:52,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:55:52,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:55:52,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:55:52,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... [2019-11-15 20:55:52,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... [2019-11-15 20:55:52,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... [2019-11-15 20:55:52,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... [2019-11-15 20:55:52,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... [2019-11-15 20:55:52,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... [2019-11-15 20:55:52,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... [2019-11-15 20:55:52,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:55:52,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:55:52,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:55:52,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:55:52,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/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 20:55:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:55:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 20:55:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:55:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:55:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:55:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:55:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:55:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 20:55:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:55:53,260 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:55:53,260 INFO L284 CfgBuilder]: Removed 44 assume(true) statements. [2019-11-15 20:55:53,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:55:53 BoogieIcfgContainer [2019-11-15 20:55:53,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:55:53,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:55:53,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:55:53,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:55:53,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:55:51" (1/3) ... [2019-11-15 20:55:53,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4d5ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:55:53, skipping insertion in model container [2019-11-15 20:55:53,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:52" (2/3) ... [2019-11-15 20:55:53,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4d5ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:55:53, skipping insertion in model container [2019-11-15 20:55:53,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:55:53" (3/3) ... [2019-11-15 20:55:53,272 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685a.c [2019-11-15 20:55:53,280 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:55:53,286 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:55:53,294 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:55:53,316 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:55:53,316 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:55:53,316 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:55:53,316 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:55:53,316 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:55:53,316 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:55:53,317 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:55:53,317 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:55:53,344 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-15 20:55:53,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:55:53,351 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:55:53,352 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:55:53,355 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:55:53,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:55:53,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-11-15 20:55:53,366 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:55:53,366 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634106864] [2019-11-15 20:55:53,366 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:55:53,366 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:55:53,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:55:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:55:53,486 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 20:55:53,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634106864] [2019-11-15 20:55:53,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:55:53,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:55:53,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025963726] [2019-11-15 20:55:53,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:55:53,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:55:53,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:55:53,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:55:53,507 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-15 20:55:53,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:55:53,535 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-11-15 20:55:53,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:55:53,542 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 20:55:53,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:55:53,553 INFO L225 Difference]: With dead ends: 224 [2019-11-15 20:55:53,553 INFO L226 Difference]: Without dead ends: 110 [2019-11-15 20:55:53,556 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 20:55:53,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-15 20:55:53,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-15 20:55:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-15 20:55:53,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-11-15 20:55:53,601 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-11-15 20:55:53,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:55:53,601 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-11-15 20:55:53,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:55:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-11-15 20:55:53,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:55:53,602 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:55:53,602 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:55:53,603 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:55:53,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:55:53,603 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-11-15 20:55:53,603 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:55:53,603 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894179703] [2019-11-15 20:55:53,603 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:55:53,603 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:55:53,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:55:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:55:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:55:53,887 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:55:53,887 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:55:53,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:55:53 BoogieIcfgContainer [2019-11-15 20:55:53,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:55:53,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:55:53,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:55:53,955 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:55:53,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:55:53" (3/4) ... [2019-11-15 20:55:53,959 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:55:53,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:55:53,961 INFO L168 Benchmark]: Toolchain (without parser) took 2287.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -54.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:53,962 INFO L168 Benchmark]: CDTParser took 0.20 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. [2019-11-15 20:55:53,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:53,964 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.45 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:53,965 INFO L168 Benchmark]: Boogie Preprocessor took 62.45 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 20:55:53,966 INFO L168 Benchmark]: RCFGBuilder took 917.48 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:53,967 INFO L168 Benchmark]: TraceAbstraction took 691.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:53,967 INFO L168 Benchmark]: Witness Printer took 5.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:55:53,975 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 538.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.45 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.45 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 917.48 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 691.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 258]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L251] double x = -1.0 / 0.0; [L252] double y = 1.0 / 0.0; [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L254] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != 3 * pi_o_4 VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 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=113occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 20:55:56,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:55:56,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:55:56,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:55:56,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:55:56,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:55:56,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:55:56,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:55:56,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:55:56,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:55:56,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:55:56,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:55:56,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:55:56,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:55:56,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:55:56,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:55:56,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:55:56,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:55:56,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:55:56,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:55:56,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:55:56,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:55:56,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:55:56,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:55:56,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:55:56,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:55:56,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:55:56,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:55:56,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:55:56,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:55:56,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:55:56,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:55:56,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:55:56,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:55:56,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:55:56,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:55:56,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:55:56,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:55:56,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:55:56,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:55:56,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:55:56,402 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:55:56,431 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:55:56,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:55:56,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:55:56,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:55:56,443 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:55:56,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:55:56,443 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:55:56,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:55:56,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:55:56,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:55:56,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:55:56,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:55:56,445 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:55:56,445 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:55:56,446 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:55:56,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:55:56,446 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:55:56,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:55:56,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:55:56,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:55:56,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:55:56,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:55:56,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:55:56,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:55:56,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:55:56,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:55:56,449 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:55:56,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:55:56,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:55:56,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:55:56,450 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_fddbf004-39f1-4f73-a8ab-51fc2f3da618/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 -> b4c34662463e17ac30593a66de4e00eb1d619b62 [2019-11-15 20:55:56,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:55:56,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:55:56,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:55:56,515 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:55:56,515 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:55:56,516 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.c [2019-11-15 20:55:56,573 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data/e52d9024e/1670ac86da914eb18c982ad4a2420b28/FLAGb6793806e [2019-11-15 20:55:57,014 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:55:57,015 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/sv-benchmarks/c/float-newlib/double_req_bl_0685a.c [2019-11-15 20:55:57,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data/e52d9024e/1670ac86da914eb18c982ad4a2420b28/FLAGb6793806e [2019-11-15 20:55:57,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/bin/uautomizer/data/e52d9024e/1670ac86da914eb18c982ad4a2420b28 [2019-11-15 20:55:57,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:55:57,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:55:57,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:55:57,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:55:57,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:55:57,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:57,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea1514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57, skipping insertion in model container [2019-11-15 20:55:57,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:57,374 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:55:57,398 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:55:57,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:55:57,746 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:55:57,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:55:57,865 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:55:57,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57 WrapperNode [2019-11-15 20:55:57,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:55:57,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:55:57,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:55:57,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:55:57,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:57,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:57,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:55:57,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:55:57,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:55:57,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:55:57,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:57,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:57,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:57,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:58,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:58,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:58,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... [2019-11-15 20:55:58,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:55:58,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:55:58,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:55:58,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:55:58,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/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 20:55:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 20:55:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 20:55:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:55:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 20:55:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:55:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:55:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:55:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 20:55:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:56:36,057 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:56:36,058 INFO L284 CfgBuilder]: Removed 44 assume(true) statements. [2019-11-15 20:56:36,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:56:36 BoogieIcfgContainer [2019-11-15 20:56:36,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:56:36,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:56:36,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:56:36,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:56:36,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:55:57" (1/3) ... [2019-11-15 20:56:36,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9ddea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:56:36, skipping insertion in model container [2019-11-15 20:56:36,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:55:57" (2/3) ... [2019-11-15 20:56:36,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9ddea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:56:36, skipping insertion in model container [2019-11-15 20:56:36,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:56:36" (3/3) ... [2019-11-15 20:56:36,066 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685a.c [2019-11-15 20:56:36,075 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:56:36,082 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:56:36,092 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:56:36,115 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:56:36,116 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:56:36,116 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:56:36,116 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:56:36,116 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:56:36,117 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:56:36,117 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:56:36,117 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:56:36,133 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-15 20:56:36,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:56:36,139 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:56:36,140 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:56:36,141 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:56:36,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:56:36,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-11-15 20:56:36,157 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:56:36,157 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774628999] [2019-11-15 20:56:36,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/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 20:56:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:56:36,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:56:36,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:56:36,581 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 20:56:36,581 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:56:36,584 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 20:56:36,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774628999] [2019-11-15 20:56:36,586 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:56:36,586 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:56:36,587 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234336647] [2019-11-15 20:56:36,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:56:36,590 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:56:36,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:56:36,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:56:36,601 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-15 20:56:36,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:56:36,630 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-11-15 20:56:36,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:56:36,631 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 20:56:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:56:36,642 INFO L225 Difference]: With dead ends: 224 [2019-11-15 20:56:36,643 INFO L226 Difference]: Without dead ends: 110 [2019-11-15 20:56:36,646 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 20:56:36,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-15 20:56:36,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-15 20:56:36,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-15 20:56:36,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-11-15 20:56:36,687 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-11-15 20:56:36,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:56:36,687 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-11-15 20:56:36,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:56:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-11-15 20:56:36,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:56:36,688 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:56:36,689 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:56:36,905 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:56:36,905 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:56:36,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:56:36,905 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-11-15 20:56:36,906 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:56:36,906 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985812537] [2019-11-15 20:56:36,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fddbf004-39f1-4f73-a8ab-51fc2f3da618/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 20:56:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:56:37,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-15 20:56:37,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:56:37,719 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:56:37,720 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 20:56:37,725 INFO L168 Benchmark]: Toolchain (without parser) took 40364.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.6 MB in the beginning and 987.7 MB in the end (delta: -42.0 MB). Peak memory consumption was 98.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:56:37,725 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:56:37,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:56:37,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.60 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 20:56:37,727 INFO L168 Benchmark]: Boogie Preprocessor took 82.79 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 20:56:37,728 INFO L168 Benchmark]: RCFGBuilder took 38013.18 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: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:56:37,728 INFO L168 Benchmark]: TraceAbstraction took 1663.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.7 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:56:37,732 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 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 506.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.60 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 82.79 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. * RCFGBuilder took 38013.18 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: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1663.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.7 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 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...