./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.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_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b ................................................................................................................................................................................................................................................................................................................ 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_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:53:11,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:53:11,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:53:11,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:53:11,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:53:11,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:53:11,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:53:11,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:53:11,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:53:11,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:53:11,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:53:11,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:53:11,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:53:11,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:53:11,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:53:11,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:53:11,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:53:11,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:53:11,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:53:11,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:53:11,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:53:11,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:53:11,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:53:11,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:53:11,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:53:11,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:53:11,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:53:11,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:53:11,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:53:11,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:53:11,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:53:11,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:53:11,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:53:11,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:53:11,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:53:11,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:53:11,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:53:11,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:53:11,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:53:11,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:53:11,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:53:11,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:53:11,711 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:53:11,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:53:11,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:53:11,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:53:11,713 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:53:11,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:53:11,713 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:53:11,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:53:11,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:53:11,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:53:11,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:53:11,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:53:11,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:53:11,714 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:53:11,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:53:11,715 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:53:11,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:53:11,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:53:11,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:53:11,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:53:11,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:53:11,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:53:11,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:53:11,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:53:11,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:53:11,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:53:11,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:53:11,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:53:11,717 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_726e2357-ae27-4e5e-9322-77671f742abd/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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2019-11-15 22:53:11,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:53:11,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:53:11,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:53:11,781 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:53:11,782 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:53:11,783 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-11-15 22:53:11,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data/2619d05b6/9fdeb233e20e4a09af66f311a59deb2f/FLAGd655c68b1 [2019-11-15 22:53:12,268 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:53:12,268 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-11-15 22:53:12,273 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data/2619d05b6/9fdeb233e20e4a09af66f311a59deb2f/FLAGd655c68b1 [2019-11-15 22:53:12,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data/2619d05b6/9fdeb233e20e4a09af66f311a59deb2f [2019-11-15 22:53:12,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:53:12,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:53:12,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:53:12,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:53:12,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:53:12,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:12,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f618134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12, skipping insertion in model container [2019-11-15 22:53:12,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:12,663 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:53:12,682 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:53:12,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:53:12,928 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:53:12,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:53:12,997 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:53:12,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12 WrapperNode [2019-11-15 22:53:12,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:53:12,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:53:12,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:53:12,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:53:13,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:13,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:13,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:53:13,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:53:13,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:53:13,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:53:13,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:13,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:13,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:13,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:13,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:13,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:13,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... [2019-11-15 22:53:13,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:53:13,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:53:13,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:53:13,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:53:13,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/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 22:53:13,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:53:13,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 22:53:13,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:53:13,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:53:13,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:53:13,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:53:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:53:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:53:13,562 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:53:13,562 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 22:53:13,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:53:13 BoogieIcfgContainer [2019-11-15 22:53:13,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:53:13,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:53:13,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:53:13,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:53:13,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:53:12" (1/3) ... [2019-11-15 22:53:13,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b8fbbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:53:13, skipping insertion in model container [2019-11-15 22:53:13,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:12" (2/3) ... [2019-11-15 22:53:13,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b8fbbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:53:13, skipping insertion in model container [2019-11-15 22:53:13,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:53:13" (3/3) ... [2019-11-15 22:53:13,571 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2019-11-15 22:53:13,580 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:53:13,588 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:53:13,599 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:53:13,621 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:53:13,621 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:53:13,621 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:53:13,621 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:53:13,621 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:53:13,621 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:53:13,621 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:53:13,622 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:53:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-15 22:53:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 22:53:13,642 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:53:13,643 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:53:13,645 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:53:13,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:53:13,650 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2019-11-15 22:53:13,658 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:53:13,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720629935] [2019-11-15 22:53:13,658 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:53:13,658 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:53:13,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:53:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:53:13,776 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 22:53:13,776 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720629935] [2019-11-15 22:53:13,777 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:53:13,777 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:53:13,778 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606319228] [2019-11-15 22:53:13,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:53:13,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:53:13,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:53:13,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:53:13,797 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-11-15 22:53:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:53:13,815 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2019-11-15 22:53:13,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:53:13,817 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-15 22:53:13,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:53:13,826 INFO L225 Difference]: With dead ends: 62 [2019-11-15 22:53:13,827 INFO L226 Difference]: Without dead ends: 29 [2019-11-15 22:53:13,830 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 22:53:13,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-15 22:53:13,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-15 22:53:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 22:53:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2019-11-15 22:53:13,864 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2019-11-15 22:53:13,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:53:13,864 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2019-11-15 22:53:13,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:53:13,864 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2019-11-15 22:53:13,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:53:13,865 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:53:13,865 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:53:13,865 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:53:13,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:53:13,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2019-11-15 22:53:13,866 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:53:13,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190609376] [2019-11-15 22:53:13,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:53:13,867 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:53:13,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:53:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:53:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:53:14,094 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:53:14,094 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:53:14,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:53:14 BoogieIcfgContainer [2019-11-15 22:53:14,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:53:14,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:53:14,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:53:14,159 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:53:14,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:53:13" (3/4) ... [2019-11-15 22:53:14,163 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:53:14,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:53:14,166 INFO L168 Benchmark]: Toolchain (without parser) took 1521.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -115.1 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:53:14,167 INFO L168 Benchmark]: CDTParser took 0.23 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 22:53:14,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:53:14,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.43 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:53:14,169 INFO L168 Benchmark]: Boogie Preprocessor took 34.66 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 22:53:14,170 INFO L168 Benchmark]: RCFGBuilder took 483.36 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:53:14,171 INFO L168 Benchmark]: TraceAbstraction took 594.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:53:14,171 INFO L168 Benchmark]: Witness Printer took 4.64 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 22:53:14,180 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 353.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.43 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.66 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 483.36 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 594.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 137]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [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, two54_log=18014398509481984, zero=0] [L132] double x = 0.0; [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [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, two54_log=18014398509481984, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [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, two54_log=18014398509481984, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [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, two54_log=18014398509481984, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [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, two54_log=18014398509481984, zero=0] [L133] double res = __ieee754_log(x); [L19] __int32_t hx, lx; VAL [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, two54_log=18014398509481984, zero=0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [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, two54_log=18014398509481984, zero=0] [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [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, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 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=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 22:53:16,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:53:16,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:53:16,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:53:16,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:53:16,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:53:16,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:53:16,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:53:16,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:53:16,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:53:16,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:53:16,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:53:16,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:53:16,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:53:16,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:53:16,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:53:16,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:53:16,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:53:16,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:53:16,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:53:16,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:53:16,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:53:16,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:53:16,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:53:16,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:53:16,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:53:16,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:53:16,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:53:16,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:53:16,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:53:16,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:53:16,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:53:16,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:53:16,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:53:16,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:53:16,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:53:16,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:53:16,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:53:16,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:53:16,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:53:16,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:53:16,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:53:16,361 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:53:16,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:53:16,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:53:16,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:53:16,365 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:53:16,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:53:16,366 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:53:16,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:53:16,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:53:16,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:53:16,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:53:16,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:53:16,368 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:53:16,368 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:53:16,369 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:53:16,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:53:16,369 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:53:16,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:53:16,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:53:16,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:53:16,370 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:53:16,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:53:16,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:53:16,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:53:16,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:53:16,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:53:16,372 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:53:16,372 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:53:16,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:53:16,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:53:16,373 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_726e2357-ae27-4e5e-9322-77671f742abd/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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2019-11-15 22:53:16,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:53:16,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:53:16,448 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:53:16,450 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:53:16,450 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:53:16,451 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-11-15 22:53:16,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data/dec5bd521/03585a69299442d7a390d64174fcf987/FLAGbd6771ab4 [2019-11-15 22:53:16,946 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:53:16,947 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-11-15 22:53:16,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data/dec5bd521/03585a69299442d7a390d64174fcf987/FLAGbd6771ab4 [2019-11-15 22:53:17,334 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/data/dec5bd521/03585a69299442d7a390d64174fcf987 [2019-11-15 22:53:17,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:53:17,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:53:17,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:53:17,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:53:17,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:53:17,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cfa1c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17, skipping insertion in model container [2019-11-15 22:53:17,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,352 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:53:17,374 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:53:17,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:53:17,585 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:53:17,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:53:17,719 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:53:17,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17 WrapperNode [2019-11-15 22:53:17,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:53:17,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:53:17,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:53:17,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:53:17,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:53:17,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:53:17,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:53:17,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:53:17,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... [2019-11-15 22:53:17,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:53:17,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:53:17,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:53:17,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:53:17,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/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 22:53:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 22:53:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 22:53:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:53:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:53:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:53:17,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:53:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 22:53:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:53:42,661 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:53:42,661 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 22:53:42,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:53:42 BoogieIcfgContainer [2019-11-15 22:53:42,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:53:42,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:53:42,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:53:42,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:53:42,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:53:17" (1/3) ... [2019-11-15 22:53:42,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672d12f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:53:42, skipping insertion in model container [2019-11-15 22:53:42,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:53:17" (2/3) ... [2019-11-15 22:53:42,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672d12f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:53:42, skipping insertion in model container [2019-11-15 22:53:42,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:53:42" (3/3) ... [2019-11-15 22:53:42,669 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2019-11-15 22:53:42,678 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:53:42,685 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:53:42,695 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:53:42,713 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:53:42,713 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:53:42,714 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:53:42,714 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:53:42,714 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:53:42,714 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:53:42,714 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:53:42,714 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:53:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-15 22:53:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 22:53:42,730 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:53:42,730 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:53:42,732 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:53:42,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:53:42,736 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2019-11-15 22:53:42,743 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:53:42,743 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049256877] [2019-11-15 22:53:42,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/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 22:53:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:53:43,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:53:43,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:53:43,613 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 22:53:43,614 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:53:43,618 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 22:53:43,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049256877] [2019-11-15 22:53:43,620 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:53:43,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:53:43,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446598076] [2019-11-15 22:53:43,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:53:43,624 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:53:43,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:53:43,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:53:43,635 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-11-15 22:53:43,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:53:43,654 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2019-11-15 22:53:43,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:53:43,655 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-15 22:53:43,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:53:43,664 INFO L225 Difference]: With dead ends: 62 [2019-11-15 22:53:43,664 INFO L226 Difference]: Without dead ends: 29 [2019-11-15 22:53:43,667 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:53:43,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-15 22:53:43,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-15 22:53:43,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 22:53:43,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2019-11-15 22:53:43,700 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2019-11-15 22:53:43,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:53:43,700 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2019-11-15 22:53:43,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:53:43,701 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2019-11-15 22:53:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:53:43,702 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:53:43,702 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:53:43,917 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:53:43,917 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:53:43,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:53:43,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2019-11-15 22:53:43,919 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:53:43,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458141135] [2019-11-15 22:53:43,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/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 22:53:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:53:44,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-15 22:53:44,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:53:45,107 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2019-11-15 22:53:45,127 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 22:53:45,128 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2019-11-15 22:53:45,129 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 22:53:45,142 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,161 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,162 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2019-11-15 22:53:45,163 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-15 22:53:45,166 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,166 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 22:53:45,182 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,183 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 22:53:45,184 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:52, output treesize:24 [2019-11-15 22:53:45,380 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 22:53:45,380 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:53:45,606 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,607 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 93 treesize of output 87 [2019-11-15 22:53:45,649 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,650 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 67 treesize of output 65 [2019-11-15 22:53:45,651 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 22:53:45,679 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,690 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,691 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 49 [2019-11-15 22:53:45,693 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-15 22:53:45,700 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,701 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 22:53:45,714 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:53:45,715 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 22:53:45,715 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:103, output treesize:53 [2019-11-15 22:53:48,329 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_4_3 (_ BitVec 64))) (or (not (= (fp.div roundNearestTiesToEven (fp.neg c_~two54_log~0) c_~zero~0) (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3)))) (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) v_skolemized_v_prenex_4_3)) (bvlshr (let ((.cse1 ((_ extract 31 0) v_skolemized_v_prenex_4_3))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))))) is different from false [2019-11-15 22:53:50,315 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 22:53:50,315 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458141135] [2019-11-15 22:53:50,316 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:53:50,316 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-15 22:53:50,316 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254894588] [2019-11-15 22:53:50,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 22:53:50,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:53:50,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 22:53:50,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=129, Unknown=1, NotChecked=22, Total=182 [2019-11-15 22:53:50,319 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 14 states. [2019-11-15 22:54:13,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:54:13,400 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2019-11-15 22:54:13,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 22:54:13,402 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2019-11-15 22:54:13,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:54:13,403 INFO L225 Difference]: With dead ends: 45 [2019-11-15 22:54:13,404 INFO L226 Difference]: Without dead ends: 37 [2019-11-15 22:54:13,405 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=79, Invalid=230, Unknown=1, NotChecked=32, Total=342 [2019-11-15 22:54:13,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-15 22:54:13,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2019-11-15 22:54:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 22:54:13,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-15 22:54:13,410 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 14 [2019-11-15 22:54:13,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:54:13,410 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-15 22:54:13,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 22:54:13,410 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2019-11-15 22:54:13,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:54:13,411 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:54:13,411 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:54:13,612 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:54:13,612 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:54:13,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:54:13,613 INFO L82 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2019-11-15 22:54:13,613 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:54:13,613 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378703865] [2019-11-15 22:54:13,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 22:54:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:54:13,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 22:54:13,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:54:13,790 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 22:54:13,791 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:54:13,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:54:13,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378703865] [2019-11-15 22:54:13,829 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:54:13,829 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 22:54:13,830 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176176351] [2019-11-15 22:54:13,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:54:13,830 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:54:13,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:54:13,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:54:13,831 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand 6 states. [2019-11-15 22:54:19,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:54:19,323 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2019-11-15 22:54:19,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:54:19,990 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-15 22:54:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:54:19,991 INFO L225 Difference]: With dead ends: 56 [2019-11-15 22:54:19,991 INFO L226 Difference]: Without dead ends: 37 [2019-11-15 22:54:19,992 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 [2019-11-15 22:54:19,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-15 22:54:19,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2019-11-15 22:54:19,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 22:54:19,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2019-11-15 22:54:19,997 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 14 [2019-11-15 22:54:19,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:54:19,997 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2019-11-15 22:54:19,997 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:54:19,998 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2019-11-15 22:54:19,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 22:54:19,999 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:54:19,999 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:54:20,213 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 22:54:20,213 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:54:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:54:20,214 INFO L82 PathProgramCache]: Analyzing trace with hash 933813038, now seen corresponding path program 1 times [2019-11-15 22:54:20,214 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:54:20,214 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662136157] [2019-11-15 22:54:20,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-15 22:54:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:54:20,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 22:54:20,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:54:20,686 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 22:54:20,686 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:54:23,122 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-11-15 22:54:23,924 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 22:54:23,925 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662136157] [2019-11-15 22:54:23,925 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:54:23,925 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-15 22:54:23,925 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860210238] [2019-11-15 22:54:23,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 22:54:23,926 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:54:23,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 22:54:23,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-15 22:54:23,927 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand 10 states. [2019-11-15 22:54:26,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:54:26,790 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2019-11-15 22:54:27,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:54:27,469 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2019-11-15 22:54:27,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:54:27,470 INFO L225 Difference]: With dead ends: 37 [2019-11-15 22:54:27,470 INFO L226 Difference]: Without dead ends: 26 [2019-11-15 22:54:27,470 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-15 22:54:27,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-15 22:54:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-15 22:54:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-15 22:54:27,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-11-15 22:54:27,475 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 18 [2019-11-15 22:54:27,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:54:27,475 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-11-15 22:54:27,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 22:54:27,475 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-11-15 22:54:27,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 22:54:27,476 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:54:27,476 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:54:27,682 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 22:54:27,683 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:54:27,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:54:27,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1217171362, now seen corresponding path program 1 times [2019-11-15 22:54:27,684 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:54:27,684 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13285145] [2019-11-15 22:54:27,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-15 22:54:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:54:28,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-15 22:54:28,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:54:28,308 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 22:54:28,309 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:54:35,433 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 28 [2019-11-15 22:54:37,497 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_10| (_ BitVec 64)) (v_ULTIMATE.start___ieee754_log_~hx~1_25 (_ BitVec 32))) (or (not (= (fp.mul roundNearestTiesToEven c_ULTIMATE.start___ieee754_log_~x c_~two54_log~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_10|)))) (not (= (bvadd (bvneg (bvashr (bvand (_ bv1048576 32) (bvadd v_ULTIMATE.start___ieee754_log_~hx~1_25 (_ bv614244 32))) (_ bv20 32))) (_ bv1077 32)) (bvashr ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_10|) (_ bv20 32)))))) is different from true [2019-11-15 22:54:37,518 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 22:54:37,519 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13285145] [2019-11-15 22:54:37,519 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:54:37,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2019-11-15 22:54:37,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833779387] [2019-11-15 22:54:37,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-15 22:54:37,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:54:37,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-15 22:54:37,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=138, Unknown=1, NotChecked=24, Total=210 [2019-11-15 22:54:37,521 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 15 states. [2019-11-15 22:54:43,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:54:43,403 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2019-11-15 22:54:43,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 22:54:43,535 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2019-11-15 22:54:43,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:54:43,536 INFO L225 Difference]: With dead ends: 34 [2019-11-15 22:54:43,536 INFO L226 Difference]: Without dead ends: 26 [2019-11-15 22:54:43,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=107, Invalid=276, Unknown=1, NotChecked=36, Total=420 [2019-11-15 22:54:43,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-15 22:54:43,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-15 22:54:43,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-15 22:54:43,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-11-15 22:54:43,541 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2019-11-15 22:54:43,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:54:43,543 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-11-15 22:54:43,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-15 22:54:43,544 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-11-15 22:54:43,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 22:54:43,545 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:54:43,545 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:54:43,757 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 22:54:43,761 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:54:43,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:54:43,761 INFO L82 PathProgramCache]: Analyzing trace with hash 407824736, now seen corresponding path program 1 times [2019-11-15 22:54:43,774 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:54:43,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239308463] [2019-11-15 22:54:43,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_726e2357-ae27-4e5e-9322-77671f742abd/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-11-15 22:54:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:54:44,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 22:54:44,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:54:45,197 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-15 22:54:45,198 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 22:54:45,201 INFO L168 Benchmark]: Toolchain (without parser) took 87864.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -231.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:54:45,202 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:54:45,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:54:45,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.47 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 22:54:45,203 INFO L168 Benchmark]: Boogie Preprocessor took 38.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:54:45,204 INFO L168 Benchmark]: RCFGBuilder took 24854.07 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:54:45,204 INFO L168 Benchmark]: TraceAbstraction took 62536.97 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 54.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -78.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:54:45,207 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.47 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. * Boogie Preprocessor took 38.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 24854.07 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 62536.97 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 54.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -78.9 MB). There was no memory consumed. 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...