./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:32,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:32,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:32,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:32,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:32,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:32,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:32,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:32,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:32,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:32,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:32,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:32,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:32,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:32,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:32,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:32,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:32,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:32,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:32,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:32,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:32,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:32,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:32,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:32,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:32,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:32,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:32,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:32,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:32,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:32,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:32,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:32,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:32,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:32,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:32,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:32,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:32,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:32,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:32,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:32,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:32,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:27:32,826 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:32,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:32,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:32,827 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:32,827 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:32,828 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:32,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:27:32,828 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:32,828 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:32,828 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:27:32,828 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:27:32,829 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:32,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:32,830 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:32,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:32,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:32,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:32,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:32,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:32,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:32,831 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:32,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:32,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:32,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:32,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:32,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:32,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:32,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:32,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:32,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:32,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:32,832 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:27:32,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:27:32,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:32,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:32,833 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2019-10-22 11:27:32,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:32,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:32,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:32,872 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:32,872 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:32,873 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-10-22 11:27:32,918 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data/35068fe4b/2cf7a3b4c1a6449faf5e73f6efd22891/FLAGeb2f27f34 [2019-10-22 11:27:33,346 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:33,347 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-10-22 11:27:33,354 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data/35068fe4b/2cf7a3b4c1a6449faf5e73f6efd22891/FLAGeb2f27f34 [2019-10-22 11:27:33,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data/35068fe4b/2cf7a3b4c1a6449faf5e73f6efd22891 [2019-10-22 11:27:33,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:33,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:33,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:33,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:33,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:33,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d693208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33, skipping insertion in model container [2019-10-22 11:27:33,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,389 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:33,409 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:33,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:33,670 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:33,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:33,730 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:33,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33 WrapperNode [2019-10-22 11:27:33,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:33,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:33,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:33,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:33,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:33,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:33,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:33,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:33,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... [2019-10-22 11:27:33,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:33,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:33,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:33,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:33,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 11:27:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:27:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 11:27:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:33,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:27:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:27:34,313 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:34,313 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-10-22 11:27:34,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:34 BoogieIcfgContainer [2019-10-22 11:27:34,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:34,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:34,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:34,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:34,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:33" (1/3) ... [2019-10-22 11:27:34,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7455bb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:34, skipping insertion in model container [2019-10-22 11:27:34,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:33" (2/3) ... [2019-10-22 11:27:34,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7455bb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:34, skipping insertion in model container [2019-10-22 11:27:34,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:34" (3/3) ... [2019-10-22 11:27:34,321 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2019-10-22 11:27:34,330 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:34,337 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:27:34,347 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:27:34,375 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:34,376 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:34,376 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:34,376 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:34,377 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:34,377 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:34,377 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:34,377 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:34,397 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-10-22 11:27:34,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:27:34,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:34,405 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:34,407 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:34,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:34,414 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2019-10-22 11:27:34,422 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:34,422 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512524545] [2019-10-22 11:27:34,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:34,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:34,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:34,567 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512524545] [2019-10-22 11:27:34,569 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:34,573 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:34,573 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836196291] [2019-10-22 11:27:34,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:27:34,580 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:34,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:27:34,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:27:34,600 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-10-22 11:27:34,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:34,622 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2019-10-22 11:27:34,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:27:34,624 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-22 11:27:34,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:34,636 INFO L225 Difference]: With dead ends: 88 [2019-10-22 11:27:34,636 INFO L226 Difference]: Without dead ends: 42 [2019-10-22 11:27:34,639 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:27:34,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-22 11:27:34,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-10-22 11:27:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-22 11:27:34,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2019-10-22 11:27:34,671 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2019-10-22 11:27:34,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:34,671 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-10-22 11:27:34,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:27:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2019-10-22 11:27:34,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:27:34,672 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:34,672 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:34,672 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:34,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:34,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2019-10-22 11:27:34,673 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:34,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265989328] [2019-10-22 11:27:34,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:34,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:34,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:27:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:27:34,912 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:27:34,912 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:27:34,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:27:34 BoogieIcfgContainer [2019-10-22 11:27:34,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:27:34,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:27:34,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:27:34,949 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:27:34,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:34" (3/4) ... [2019-10-22 11:27:34,953 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:27:34,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:27:34,955 INFO L168 Benchmark]: Toolchain (without parser) took 1584.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.1 MB in the beginning and 1.0 GB in the end (delta: -102.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:34,956 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 959.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:34,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:34,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.07 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:34,958 INFO L168 Benchmark]: Boogie Preprocessor took 38.48 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:34,959 INFO L168 Benchmark]: RCFGBuilder took 496.92 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: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:34,959 INFO L168 Benchmark]: TraceAbstraction took 633.84 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:34,959 INFO L168 Benchmark]: Witness Printer took 4.62 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. [2019-10-22 11:27:34,962 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 959.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 359.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.07 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.48 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 496.92 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: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 633.84 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.62 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: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 168, overapproximation of someBinaryArithmeticDOUBLEoperation at line 131, overapproximation of bitwiseAnd at line 167. Possible FailurePath: [L15-L24] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L26] static const double zero = 0.0; [L109-L112] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L114] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L181] double x = 1.0 / 0.0; [L117] double y, z; [L118] __int32_t i, k, hx; [L119] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L122] ieee_double_shape_type ew_u; [L123] ew_u.value = (x) [L124] EXPR ew_u.parts.msw [L124] (hx) = ew_u.parts.msw [L125] EXPR ew_u.parts.lsw [L125] (lx) = ew_u.parts.lsw [L128] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L129] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L130] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L131] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] double res = __ieee754_log10(x); [L160] __int32_t hx, lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L162] ieee_double_shape_type ew_u; [L163] ew_u.value = (x) [L164] EXPR ew_u.parts.msw [L164] (hx) = ew_u.parts.msw [L165] EXPR ew_u.parts.lsw [L165] (lx) = ew_u.parts.lsw [L167] hx &= 0x7fffffff [L168] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L169] hx = 0x7ff00000 - hx [L170] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L185] COND TRUE !isinf_double(res) [L186] __VERIFIER_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, 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 [2019-10-22 11:27:36,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:36,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:36,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:36,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:36,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:36,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:36,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:36,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:36,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:36,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:36,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:36,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:36,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:36,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:36,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:36,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:36,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:37,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:37,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:37,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:37,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:37,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:37,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:37,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:37,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:37,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:37,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:37,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:37,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:37,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:37,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:37,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:37,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:37,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:37,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:37,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:37,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:37,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:37,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:37,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:37,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:27:37,026 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:37,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:37,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:37,027 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:37,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:37,027 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:37,028 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:37,028 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:37,028 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:37,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:37,029 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:37,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:37,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:37,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:37,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:37,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:37,030 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:27:37,030 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:27:37,030 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:37,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:37,030 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:27:37,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:37,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:37,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:37,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:37,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:37,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:37,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:37,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:37,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:37,032 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:27:37,032 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:27:37,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:37,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:37,033 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2019-10-22 11:27:37,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:37,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:37,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:37,075 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:37,075 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:37,076 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-10-22 11:27:37,118 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data/e03121714/7fc02127012f440bb8242df54bcbedcc/FLAG3883d8239 [2019-10-22 11:27:37,545 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:37,546 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-10-22 11:27:37,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data/e03121714/7fc02127012f440bb8242df54bcbedcc/FLAG3883d8239 [2019-10-22 11:27:37,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/data/e03121714/7fc02127012f440bb8242df54bcbedcc [2019-10-22 11:27:37,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:37,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:37,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:37,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:37,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:37,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:37,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79894f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37, skipping insertion in model container [2019-10-22 11:27:37,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:37,583 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:37,607 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:37,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:37,799 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:37,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:37,948 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:37,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37 WrapperNode [2019-10-22 11:27:37,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:37,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:37,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:37,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:37,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:37,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:38,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:38,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:38,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:38,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:38,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:38,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:38,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:38,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:38,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:38,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:38,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... [2019-10-22 11:27:38,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:38,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:38,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:38,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:38,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:38,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-10-22 11:27:38,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-10-22 11:27:38,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:38,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:27:38,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:38,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:38,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:27:38,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:28:08,256 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:28:08,256 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-10-22 11:28:08,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:28:08 BoogieIcfgContainer [2019-10-22 11:28:08,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:28:08,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:28:08,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:28:08,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:28:08,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:37" (1/3) ... [2019-10-22 11:28:08,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f23522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:28:08, skipping insertion in model container [2019-10-22 11:28:08,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:37" (2/3) ... [2019-10-22 11:28:08,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f23522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:28:08, skipping insertion in model container [2019-10-22 11:28:08,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:28:08" (3/3) ... [2019-10-22 11:28:08,264 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2019-10-22 11:28:08,272 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:28:08,283 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:28:08,290 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:28:08,305 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:28:08,306 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:28:08,306 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:28:08,306 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:28:08,306 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:28:08,306 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:28:08,306 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:28:08,306 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:28:08,316 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-10-22 11:28:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:28:08,320 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:28:08,321 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:28:08,322 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:28:08,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:28:08,327 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2019-10-22 11:28:08,336 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:28:08,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069482635] [2019-10-22 11:28:08,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 11:28:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:28:09,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:28:09,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:28:09,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:28:09,103 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:28:09,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:28:09,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069482635] [2019-10-22 11:28:09,109 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:28:09,109 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:28:09,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538719156] [2019-10-22 11:28:09,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:28:09,114 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:28:09,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:28:09,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:28:09,127 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-10-22 11:28:09,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:28:09,145 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2019-10-22 11:28:09,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:28:09,146 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-22 11:28:09,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:28:09,155 INFO L225 Difference]: With dead ends: 88 [2019-10-22 11:28:09,156 INFO L226 Difference]: Without dead ends: 42 [2019-10-22 11:28:09,158 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:28:09,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-22 11:28:09,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-10-22 11:28:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-22 11:28:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2019-10-22 11:28:09,190 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2019-10-22 11:28:09,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:28:09,190 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-10-22 11:28:09,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:28:09,190 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2019-10-22 11:28:09,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:28:09,191 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:28:09,191 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:28:09,393 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:28:09,393 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:28:09,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:28:09,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2019-10-22 11:28:09,394 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:28:09,394 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23993096] [2019-10-22 11:28:09,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-10-22 11:28:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:28:10,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:28:10,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:28:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:28:10,244 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:28:10,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:28:10,305 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23993096] [2019-10-22 11:28:10,305 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:28:10,305 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:28:10,305 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950141925] [2019-10-22 11:28:10,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:28:10,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:28:10,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:28:10,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:28:10,309 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 6 states. [2019-10-22 11:28:10,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:28:10,407 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2019-10-22 11:28:10,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:28:10,412 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-22 11:28:10,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:28:10,413 INFO L225 Difference]: With dead ends: 51 [2019-10-22 11:28:10,413 INFO L226 Difference]: Without dead ends: 15 [2019-10-22 11:28:10,414 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:28:10,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-22 11:28:10,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-22 11:28:10,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-22 11:28:10,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-10-22 11:28:10,418 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2019-10-22 11:28:10,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:28:10,418 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-10-22 11:28:10,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:28:10,418 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-10-22 11:28:10,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:28:10,419 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:28:10,419 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:28:10,633 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 11:28:10,634 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:28:10,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:28:10,635 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356858, now seen corresponding path program 1 times [2019-10-22 11:28:10,637 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:28:10,638 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819022071] [2019-10-22 11:28:10,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_240ddc58-c31d-4168-9075-ca6eeaa0754a/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-10-22 11:28:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:28:10,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 18 conjunts are in the unsatisfiable core [2019-10-22 11:28:10,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:28:11,048 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 11:28:11,050 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:28:11,067 INFO L168 Benchmark]: Toolchain (without parser) took 33495.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -49.2 MB). Peak memory consumption was 95.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:28:11,069 INFO L168 Benchmark]: CDTParser took 0.15 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. [2019-10-22 11:28:11,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -180.6 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:28:11,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.62 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:28:11,074 INFO L168 Benchmark]: Boogie Preprocessor took 50.99 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. [2019-10-22 11:28:11,076 INFO L168 Benchmark]: RCFGBuilder took 30203.46 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: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:28:11,078 INFO L168 Benchmark]: TraceAbstraction took 2803.05 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: 77.6 MB). Peak memory consumption was 77.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:28:11,084 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 379.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -180.6 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.62 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.99 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 30203.46 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: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2803.05 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: 77.6 MB). Peak memory consumption was 77.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...