./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1072a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/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 6677b5df0de82d6f15e79744b3d0d69c2e6d1112 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/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 6677b5df0de82d6f15e79744b3d0d69c2e6d1112 .................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_1 term size 25 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:57:48,023 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:57:48,025 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:57:48,036 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:57:48,037 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:57:48,038 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:57:48,039 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:57:48,041 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:57:48,042 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:57:48,044 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:57:48,045 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:57:48,045 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:57:48,046 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:57:48,047 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:57:48,048 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:57:48,049 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:57:48,050 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:57:48,054 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:57:48,063 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:57:48,065 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:57:48,066 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:57:48,067 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:57:48,069 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:57:48,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:57:48,073 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:57:48,074 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:57:48,075 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:57:48,076 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:57:48,076 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:57:48,077 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:57:48,078 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:57:48,078 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:57:48,078 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:57:48,079 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:57:48,083 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:57:48,085 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:57:48,086 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 16:57:48,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:57:48,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:57:48,106 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:57:48,106 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 16:57:48,107 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:57:48,114 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:57:48,115 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:57:48,115 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:57:48,115 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:57:48,115 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:57:48,116 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:57:48,116 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:57:48,116 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:57:48,116 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:57:48,116 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:57:48,116 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:57:48,117 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:57:48,117 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:57:48,117 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:57:48,117 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:57:48,117 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:57:48,118 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:57:48,118 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:57:48,118 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:57:48,118 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:57:48,118 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:57:48,118 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:57:48,119 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:57:48,119 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:57:48,119 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:57:48,125 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/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 -> 6677b5df0de82d6f15e79744b3d0d69c2e6d1112 [2018-11-18 16:57:48,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:57:48,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:57:48,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:57:48,198 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:57:48,199 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:57:48,200 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1072a_true-unreach-call.c [2018-11-18 16:57:48,254 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data/45ba1cfc8/9ea50dad429e480096b7a8cb1ee19d5d/FLAGc4155c98a [2018-11-18 16:57:48,663 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:57:48,664 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/sv-benchmarks/c/float-newlib/double_req_bl_1072a_true-unreach-call.c [2018-11-18 16:57:48,670 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data/45ba1cfc8/9ea50dad429e480096b7a8cb1ee19d5d/FLAGc4155c98a [2018-11-18 16:57:48,683 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data/45ba1cfc8/9ea50dad429e480096b7a8cb1ee19d5d [2018-11-18 16:57:48,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:57:48,686 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:57:48,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:57:48,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:57:48,695 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:57:48,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:57:48" (1/1) ... [2018-11-18 16:57:48,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c62fe61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48, skipping insertion in model container [2018-11-18 16:57:48,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:57:48" (1/1) ... [2018-11-18 16:57:48,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:57:48,725 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:57:48,895 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:57:48,899 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:57:48,929 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:57:48,948 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:57:48,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48 WrapperNode [2018-11-18 16:57:48,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:57:48,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:57:48,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:57:48,949 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:57:49,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48" (1/1) ... [2018-11-18 16:57:49,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48" (1/1) ... [2018-11-18 16:57:49,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48" (1/1) ... [2018-11-18 16:57:49,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48" (1/1) ... [2018-11-18 16:57:49,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48" (1/1) ... [2018-11-18 16:57:49,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48" (1/1) ... [2018-11-18 16:57:49,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48" (1/1) ... [2018-11-18 16:57:49,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:57:49,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:57:49,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:57:49,054 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:57:49,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/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 [2018-11-18 16:57:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:57:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:57:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 16:57:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2018-11-18 16:57:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 16:57:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:57:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:57:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 16:57:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2018-11-18 16:57:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:57:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 16:57:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:57:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:57:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:57:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 16:57:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 16:57:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:57:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:57:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:57:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 16:57:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 16:57:49,490 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:57:49,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:49 BoogieIcfgContainer [2018-11-18 16:57:49,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:57:49,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:57:49,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:57:49,496 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:57:49,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:57:48" (1/3) ... [2018-11-18 16:57:49,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2f8a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:57:49, skipping insertion in model container [2018-11-18 16:57:49,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:48" (2/3) ... [2018-11-18 16:57:49,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2f8a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:57:49, skipping insertion in model container [2018-11-18 16:57:49,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:49" (3/3) ... [2018-11-18 16:57:49,500 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072a_true-unreach-call.c [2018-11-18 16:57:49,510 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:57:49,519 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:57:49,537 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:57:49,571 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:57:49,571 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:57:49,572 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:57:49,572 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:57:49,572 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:57:49,572 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:57:49,572 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:57:49,572 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:57:49,572 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:57:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-18 16:57:49,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 16:57:49,599 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:49,600 INFO L375 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, 1] [2018-11-18 16:57:49,603 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:49,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:49,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1378541736, now seen corresponding path program 1 times [2018-11-18 16:57:49,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:49,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:49,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:49,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:49,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:49,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:49,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:57:49,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:57:49,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:57:49,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:57:49,790 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-18 16:57:49,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:49,815 INFO L93 Difference]: Finished difference Result 72 states and 101 transitions. [2018-11-18 16:57:49,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:57:49,817 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-18 16:57:49,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:49,827 INFO L225 Difference]: With dead ends: 72 [2018-11-18 16:57:49,827 INFO L226 Difference]: Without dead ends: 36 [2018-11-18 16:57:49,831 INFO L604 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 [2018-11-18 16:57:49,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-18 16:57:49,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-18 16:57:49,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-18 16:57:49,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-11-18 16:57:49,872 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 25 [2018-11-18 16:57:49,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:49,872 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-11-18 16:57:49,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:57:49,873 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-11-18 16:57:49,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 16:57:49,874 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:49,874 INFO L375 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, 1, 1, 1] [2018-11-18 16:57:49,874 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:49,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:49,875 INFO L82 PathProgramCache]: Analyzing trace with hash 713482640, now seen corresponding path program 1 times [2018-11-18 16:57:49,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:49,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:49,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:49,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:49,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:50,034 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:57:50,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:57:50 BoogieIcfgContainer [2018-11-18 16:57:50,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:57:50,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:57:50,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:57:50,064 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:57:50,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:49" (3/4) ... [2018-11-18 16:57:50,068 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:57:50,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:57:50,069 INFO L168 Benchmark]: Toolchain (without parser) took 1382.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -122.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:50,070 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:57:50,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.18 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 942.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:50,071 INFO L168 Benchmark]: Boogie Preprocessor took 104.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:50,072 INFO L168 Benchmark]: RCFGBuilder took 437.34 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:50,072 INFO L168 Benchmark]: TraceAbstraction took 571.42 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: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:50,073 INFO L168 Benchmark]: Witness Printer took 4.16 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. [2018-11-18 16:57:50,075 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.18 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 942.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 104.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 437.34 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 571.42 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: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.16 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: 89]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 72, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 71. Possible FailurePath: [L84] double x = 1.0 / 0.0; [L85] CALL, EXPR trunc_double(x) VAL [\old(x)=2147483649] [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; VAL [\old(x)=2147483649, x=2147483649] [L23] FCALL ieee_double_shape_type ew_u; [L24] FCALL ew_u.value = (x) [L25] EXPR, FCALL ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR, FCALL ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L27] COND FALSE !(0) VAL [\old(x)=2147483649, lsw=2, msw=-2147483648, x=2147483649] [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=2147483649, exponent_less_1023=1024, lsw=2, msw=-2147483648, signbit=0, x=2147483649] [L30] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=2147483649, exponent_less_1023=1024, lsw=2, msw=-2147483648, signbit=0, x=2147483649] [L47] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=2147483649, exponent_less_1023=1024, lsw=2, msw=-2147483648, signbit=0, x=2147483649] [L48] COND TRUE exponent_less_1023 == 1024 [L49] RET return x + x; VAL [\old(x)=2147483649, exponent_less_1023=1024, lsw=2, msw=-2147483648, signbit=0, x=2147483649] [L85] EXPR trunc_double(x) VAL [trunc_double(x)=2147483652, x=2147483649] [L85] double res = trunc_double(x); [L88] CALL, EXPR isinf_double(res) VAL [\old(x)=2147483652] [L64] __int32_t hx, lx; VAL [\old(x)=2147483652, x=2147483652] [L66] FCALL ieee_double_shape_type ew_u; [L67] FCALL ew_u.value = (x) [L68] EXPR, FCALL ew_u.parts.msw [L68] (hx) = ew_u.parts.msw [L69] EXPR, FCALL ew_u.parts.lsw [L69] (lx) = ew_u.parts.lsw [L70] COND FALSE !(0) VAL [\old(x)=2147483652, hx=-2147483648, lx=2, x=2147483652] [L71] hx &= 0x7fffffff [L72] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L73] hx = 0x7ff00000 - hx [L74] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=2147483652, \result=0, hx=2146435073, lx=2, x=2147483652] [L88] EXPR isinf_double(res) VAL [isinf_double(res)=0, res=2147483652, x=2147483649] [L88] COND TRUE !isinf_double(res) [L89] __VERIFIER_error() VAL [res=2147483652, x=2147483649] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 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=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-5842f4b [2018-11-18 16:57:52,171 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:57:52,173 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:57:52,184 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:57:52,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:57:52,185 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:57:52,187 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:57:52,188 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:57:52,190 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:57:52,190 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:57:52,191 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:57:52,192 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:57:52,192 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:57:52,193 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:57:52,194 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:57:52,195 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:57:52,196 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:57:52,198 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:57:52,199 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:57:52,201 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:57:52,202 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:57:52,203 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:57:52,205 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:57:52,206 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:57:52,206 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:57:52,207 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:57:52,208 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:57:52,208 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:57:52,209 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:57:52,210 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:57:52,211 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:57:52,211 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:57:52,212 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:57:52,212 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:57:52,213 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:57:52,214 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:57:52,214 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 16:57:52,227 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:57:52,227 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:57:52,228 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:57:52,228 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:57:52,229 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:57:52,229 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:57:52,229 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:57:52,230 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:57:52,230 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:57:52,230 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:57:52,230 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:57:52,230 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:57:52,230 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:57:52,231 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:57:52,231 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:57:52,231 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:57:52,231 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:57:52,231 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:57:52,231 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:57:52,232 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:57:52,232 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:57:52,232 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:57:52,232 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:57:52,232 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:57:52,232 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:57:52,233 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:57:52,233 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:57:52,233 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:57:52,233 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 16:57:52,233 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:57:52,234 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:57:52,234 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:57:52,234 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/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 -> 6677b5df0de82d6f15e79744b3d0d69c2e6d1112 [2018-11-18 16:57:52,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:57:52,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:57:52,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:57:52,295 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:57:52,296 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:57:52,297 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1072a_true-unreach-call.c [2018-11-18 16:57:52,363 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data/09a97158d/507815642fde4ec7853de6dd6ca20f18/FLAG91c9c980a [2018-11-18 16:57:52,692 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:57:52,693 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/sv-benchmarks/c/float-newlib/double_req_bl_1072a_true-unreach-call.c [2018-11-18 16:57:52,698 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data/09a97158d/507815642fde4ec7853de6dd6ca20f18/FLAG91c9c980a [2018-11-18 16:57:53,105 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/uautomizer/data/09a97158d/507815642fde4ec7853de6dd6ca20f18 [2018-11-18 16:57:53,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:57:53,109 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:57:53,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:57:53,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:57:53,115 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:57:53,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:57:53" (1/1) ... [2018-11-18 16:57:53,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d38ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53, skipping insertion in model container [2018-11-18 16:57:53,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:57:53" (1/1) ... [2018-11-18 16:57:53,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:57:53,147 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:57:53,350 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:57:53,355 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:57:53,399 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:57:53,426 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:57:53,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53 WrapperNode [2018-11-18 16:57:53,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:57:53,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:57:53,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:57:53,428 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:57:53,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53" (1/1) ... [2018-11-18 16:57:53,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53" (1/1) ... [2018-11-18 16:57:53,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53" (1/1) ... [2018-11-18 16:57:53,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53" (1/1) ... [2018-11-18 16:57:53,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53" (1/1) ... [2018-11-18 16:57:53,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53" (1/1) ... [2018-11-18 16:57:53,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53" (1/1) ... [2018-11-18 16:57:53,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:57:53,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:57:53,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:57:53,489 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:57:53,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/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 [2018-11-18 16:57:53,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:57:53,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:57:53,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 16:57:53,628 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2018-11-18 16:57:53,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 16:57:53,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 16:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2018-11-18 16:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 16:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 16:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 16:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 16:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 16:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 16:57:53,846 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:57:54,095 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:57:54,162 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:57:54,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:54 BoogieIcfgContainer [2018-11-18 16:57:54,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:57:54,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:57:54,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:57:54,166 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:57:54,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:57:53" (1/3) ... [2018-11-18 16:57:54,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1079b965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:57:54, skipping insertion in model container [2018-11-18 16:57:54,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:53" (2/3) ... [2018-11-18 16:57:54,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1079b965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:57:54, skipping insertion in model container [2018-11-18 16:57:54,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:54" (3/3) ... [2018-11-18 16:57:54,171 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072a_true-unreach-call.c [2018-11-18 16:57:54,181 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:57:54,189 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:57:54,200 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:57:54,229 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:57:54,229 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:57:54,230 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:57:54,230 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:57:54,230 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:57:54,230 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:57:54,230 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:57:54,230 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:57:54,231 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:57:54,244 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-11-18 16:57:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 16:57:54,251 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:54,253 INFO L375 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] [2018-11-18 16:57:54,256 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:54,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:54,262 INFO L82 PathProgramCache]: Analyzing trace with hash -389250974, now seen corresponding path program 1 times [2018-11-18 16:57:54,267 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:57:54,268 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/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 [2018-11-18 16:57:54,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:54,389 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:54,406 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:57:54,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:54,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:57:54,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:57:54,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:57:54,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:57:54,441 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-11-18 16:57:54,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:54,463 INFO L93 Difference]: Finished difference Result 70 states and 99 transitions. [2018-11-18 16:57:54,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:57:54,465 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 16:57:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:54,474 INFO L225 Difference]: With dead ends: 70 [2018-11-18 16:57:54,474 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 16:57:54,478 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:57:54,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 16:57:54,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-18 16:57:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 16:57:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-11-18 16:57:54,527 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2018-11-18 16:57:54,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:54,528 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-11-18 16:57:54,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:57:54,528 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-11-18 16:57:54,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 16:57:54,529 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:54,529 INFO L375 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, 1, 1] [2018-11-18 16:57:54,530 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:54,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:54,530 INFO L82 PathProgramCache]: Analyzing trace with hash 453556679, now seen corresponding path program 1 times [2018-11-18 16:57:54,531 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:57:54,533 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f90ea00c-9399-459a-bc7e-00dd8aa2c535/bin-2019/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 [2018-11-18 16:57:54,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:54,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:55,672 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-18 16:57:56,154 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 16:57:56,155 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 16:57:56,157 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 16:57:56,158 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 16:57:56,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 76 [2018-11-18 16:57:56,416 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2018-11-18 16:57:56,416 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_1 term size 25 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) 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:286) 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.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 16:57:56,424 INFO L168 Benchmark]: Toolchain (without parser) took 3315.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -88.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:56,426 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:57:56,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.97 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:56,427 INFO L168 Benchmark]: Boogie Preprocessor took 60.19 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:57:56,427 INFO L168 Benchmark]: RCFGBuilder took 674.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:56,428 INFO L168 Benchmark]: TraceAbstraction took 2260.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:56,431 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.97 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.19 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 674.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2260.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_1 term size 25 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_1 term size 25: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...