./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0661a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash affc33a17eeaac5bbef8bea17cfba29382789d60 ............................................................................................................................................................................................................................................................................................................................................................................. 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_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash affc33a17eeaac5bbef8bea17cfba29382789d60 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 15:22:14,180 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:22:14,181 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:22:14,187 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:22:14,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:22:14,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:22:14,188 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:22:14,189 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:22:14,190 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:22:14,190 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:22:14,191 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:22:14,191 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:22:14,191 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:22:14,192 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:22:14,192 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:22:14,193 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:22:14,193 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:22:14,194 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:22:14,195 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:22:14,196 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:22:14,196 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:22:14,197 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:22:14,198 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:22:14,198 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:22:14,198 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:22:14,199 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:22:14,199 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:22:14,199 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:22:14,200 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:22:14,200 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:22:14,200 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:22:14,201 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:22:14,201 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:22:14,201 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:22:14,201 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:22:14,202 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:22:14,202 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 15:22:14,209 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:22:14,209 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:22:14,210 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:22:14,210 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:22:14,210 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:22:14,210 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:22:14,210 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:22:14,210 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 15:22:14,210 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:22:14,210 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:22:14,210 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 15:22:14,211 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 15:22:14,211 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:22:14,211 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:22:14,211 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:22:14,211 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:22:14,211 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:22:14,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:22:14,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:22:14,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:22:14,212 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:22:14,212 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:22:14,212 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:22:14,212 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:22:14,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:22:14,212 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:22:14,212 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:22:14,212 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:22:14,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:22:14,212 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:22:14,213 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:22:14,213 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:22:14,213 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 15:22:14,213 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:22:14,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 15:22:14,213 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 15:22:14,213 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> affc33a17eeaac5bbef8bea17cfba29382789d60 [2018-12-09 15:22:14,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:22:14,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:22:14,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:22:14,239 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:22:14,239 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:22:14,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0661a_true-unreach-call.c [2018-12-09 15:22:14,274 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data/a5a4ddd7d/f5c9e41e5fd14f649554b68e2249b374/FLAGa8050c4b3 [2018-12-09 15:22:14,635 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:22:14,635 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/sv-benchmarks/c/float-newlib/double_req_bl_0661a_true-unreach-call.c [2018-12-09 15:22:14,639 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data/a5a4ddd7d/f5c9e41e5fd14f649554b68e2249b374/FLAGa8050c4b3 [2018-12-09 15:22:14,649 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data/a5a4ddd7d/f5c9e41e5fd14f649554b68e2249b374 [2018-12-09 15:22:14,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:22:14,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:22:14,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:22:14,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:22:14,655 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:22:14,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707ef703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14, skipping insertion in model container [2018-12-09 15:22:14,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:22:14,681 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:22:14,801 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:22:14,805 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:22:14,869 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:22:14,888 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:22:14,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14 WrapperNode [2018-12-09 15:22:14,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:22:14,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:22:14,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:22:14,889 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:22:14,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:22:14,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:22:14,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:22:14,906 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:22:14,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... [2018-12-09 15:22:14,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:22:14,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:22:14,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:22:14,937 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:22:14,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:22:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-09 15:22:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-09 15:22:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:22:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:22:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-12-09 15:22:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-12-09 15:22:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 15:22:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 15:22:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-12-09 15:22:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-12-09 15:22:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:22:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:22:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 15:22:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:22:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-12-09 15:22:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-12-09 15:22:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:22:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:22:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 15:22:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-09 15:22:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 15:22:15,253 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:22:15,253 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-12-09 15:22:15,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:15 BoogieIcfgContainer [2018-12-09 15:22:15,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:22:15,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:22:15,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:22:15,255 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:22:15,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:22:14" (1/3) ... [2018-12-09 15:22:15,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b7f3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:22:15, skipping insertion in model container [2018-12-09 15:22:15,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:14" (2/3) ... [2018-12-09 15:22:15,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b7f3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:22:15, skipping insertion in model container [2018-12-09 15:22:15,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:15" (3/3) ... [2018-12-09 15:22:15,257 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a_true-unreach-call.c [2018-12-09 15:22:15,263 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:22:15,267 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:22:15,276 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:22:15,293 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:22:15,293 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:22:15,293 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:22:15,293 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:22:15,293 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:22:15,293 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:22:15,293 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:22:15,293 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:22:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2018-12-09 15:22:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 15:22:15,308 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:15,308 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:22:15,309 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:15,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:15,313 INFO L82 PathProgramCache]: Analyzing trace with hash 913677384, now seen corresponding path program 1 times [2018-12-09 15:22:15,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:22:15,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:22:15,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:15,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:22:15,342 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:22:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:15,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:15,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:22:15,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 15:22:15,404 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:22:15,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 15:22:15,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 15:22:15,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:22:15,415 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 2 states. [2018-12-09 15:22:15,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:22:15,435 INFO L93 Difference]: Finished difference Result 215 states and 339 transitions. [2018-12-09 15:22:15,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 15:22:15,436 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-09 15:22:15,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:22:15,441 INFO L225 Difference]: With dead ends: 215 [2018-12-09 15:22:15,442 INFO L226 Difference]: Without dead ends: 107 [2018-12-09 15:22:15,444 INFO L631 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 [2018-12-09 15:22:15,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-12-09 15:22:15,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-12-09 15:22:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-12-09 15:22:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2018-12-09 15:22:15,470 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 20 [2018-12-09 15:22:15,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:22:15,471 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2018-12-09 15:22:15,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 15:22:15,471 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2018-12-09 15:22:15,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 15:22:15,471 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:15,471 INFO L402 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] [2018-12-09 15:22:15,472 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:15,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:15,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1713483969, now seen corresponding path program 1 times [2018-12-09 15:22:15,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:22:15,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:22:15,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:15,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:22:15,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:22:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:22:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:22:15,544 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 15:22:15,560 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-12-09 15:22:15,561 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450976 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-09 15:22:15,561 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450959 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-12-09 15:22:15,561 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450949 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-09 15:22:15,562 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450955 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-09 15:22:15,562 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-09 15:22:15,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:22:15 BoogieIcfgContainer [2018-12-09 15:22:15,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:22:15,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:22:15,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:22:15,571 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:22:15,571 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:15" (3/4) ... [2018-12-09 15:22:15,573 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 15:22:15,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:22:15,574 INFO L168 Benchmark]: Toolchain (without parser) took 923.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -120.7 MB). Peak memory consumption was 51.3 MB. Max. memory is 11.5 GB. [2018-12-09 15:22:15,575 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:22:15,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 953.3 MB in the beginning and 1.2 GB in the end (delta: -211.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-12-09 15:22:15,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:22:15,576 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-09 15:22:15,576 INFO L168 Benchmark]: RCFGBuilder took 316.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. [2018-12-09 15:22:15,577 INFO L168 Benchmark]: TraceAbstraction took 316.82 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-12-09 15:22:15,577 INFO L168 Benchmark]: Witness Printer took 3.04 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. [2018-12-09 15:22:15,579 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 953.3 MB in the beginning and 1.2 GB in the end (delta: -211.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 316.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 316.82 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.04 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450976 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450959 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450949 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450955 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_4_~DOUBLE# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 271]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 265, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 270. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=6442450971, \old(one_atan)=6442450960, \old(pi)=6442450967, \old(pi_lo_atan2)=6442450958, \old(pi_o_2)=6442450945, \old(pi_o_4)=6442450963, \old(tiny_atan2)=6442450975, \old(zero_atan2)=6442450951, aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L264] double x = __VERIFIER_nondet_double(); [L265] double y = -0.0; VAL [aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, zero_atan2=0] [L267] COND TRUE x > 0.0 VAL [aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, zero_atan2=0] [L268] CALL, EXPR __ieee754_atan2(y, x) VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=3, lx=6442450968, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=3, hy=-2147483648, lx=6442450968, ly=6442450947, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=3, hy=-2147483648, lx=6442450968, ly=6442450947, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L268] RET, EXPR __ieee754_atan2(y, x) VAL [__ieee754_atan2(y, x)=6442450973, aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L268] double res = __ieee754_atan2(y, x); [L270] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450973, res == -0.0 && __signbit_double(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L270] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L271] __VERIFIER_error() VAL [aT_atan={6442450953:0}, atanhi_atan={6442450956:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450973, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 112 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 153 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=112occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 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 0.1.23-635dfa2 [2018-12-09 15:22:16,857 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:22:16,858 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:22:16,864 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:22:16,864 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:22:16,865 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:22:16,865 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:22:16,866 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:22:16,867 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:22:16,867 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:22:16,868 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:22:16,868 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:22:16,868 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:22:16,869 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:22:16,869 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:22:16,870 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:22:16,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:22:16,871 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:22:16,872 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:22:16,872 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:22:16,873 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:22:16,873 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:22:16,875 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:22:16,875 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:22:16,875 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:22:16,875 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:22:16,876 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:22:16,876 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:22:16,877 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:22:16,877 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:22:16,877 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:22:16,878 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:22:16,878 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:22:16,878 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:22:16,879 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:22:16,879 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:22:16,879 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 15:22:16,888 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:22:16,889 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:22:16,889 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:22:16,889 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:22:16,890 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:22:16,890 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:22:16,890 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:22:16,890 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:22:16,890 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:22:16,890 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:22:16,891 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:22:16,891 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:22:16,891 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:22:16,891 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:22:16,892 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:22:16,892 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:22:16,892 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:22:16,892 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 15:22:16,892 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 15:22:16,892 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:22:16,893 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:22:16,893 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 15:22:16,893 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:22:16,893 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:22:16,893 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:22:16,893 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:22:16,893 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:22:16,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:22:16,894 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:22:16,894 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:22:16,894 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:22:16,894 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 15:22:16,894 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:22:16,895 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 15:22:16,895 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 15:22:16,895 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_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> affc33a17eeaac5bbef8bea17cfba29382789d60 [2018-12-09 15:22:16,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:22:16,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:22:16,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:22:16,933 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:22:16,933 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:22:16,934 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0661a_true-unreach-call.c [2018-12-09 15:22:16,973 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data/ee98c1774/623e93906e5c47c8bb8c02ce863011b1/FLAGeabbc349d [2018-12-09 15:22:17,386 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:22:17,387 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/sv-benchmarks/c/float-newlib/double_req_bl_0661a_true-unreach-call.c [2018-12-09 15:22:17,391 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data/ee98c1774/623e93906e5c47c8bb8c02ce863011b1/FLAGeabbc349d [2018-12-09 15:22:17,399 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/data/ee98c1774/623e93906e5c47c8bb8c02ce863011b1 [2018-12-09 15:22:17,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:22:17,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:22:17,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:22:17,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:22:17,404 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:22:17,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499c3c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17, skipping insertion in model container [2018-12-09 15:22:17,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:22:17,424 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:22:17,552 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:22:17,557 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:22:17,602 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:22:17,626 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:22:17,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17 WrapperNode [2018-12-09 15:22:17,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:22:17,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:22:17,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:22:17,627 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:22:17,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:22:17,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:22:17,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:22:17,678 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:22:17,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... [2018-12-09 15:22:17,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:22:17,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:22:17,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:22:17,710 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:22:17,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:22:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 15:22:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 15:22:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-09 15:22:17,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-09 15:22:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:22:17,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:22:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-12-09 15:22:17,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-12-09 15:22:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-12-09 15:22:17,742 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-12-09 15:22:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:22:17,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:22:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-12-09 15:22:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:22:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-12-09 15:22:17,742 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-12-09 15:22:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 15:22:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:22:17,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:22:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 15:22:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 15:22:17,850 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:18,530 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:18,726 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:18,809 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:18,831 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:19,403 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:19,417 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:19,454 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:24,071 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:34,324 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:22:34,796 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:22:34,796 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-12-09 15:22:34,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:34 BoogieIcfgContainer [2018-12-09 15:22:34,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:22:34,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:22:34,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:22:34,799 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:22:34,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:22:17" (1/3) ... [2018-12-09 15:22:34,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f55450c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:22:34, skipping insertion in model container [2018-12-09 15:22:34,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:17" (2/3) ... [2018-12-09 15:22:34,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f55450c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:22:34, skipping insertion in model container [2018-12-09 15:22:34,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:34" (3/3) ... [2018-12-09 15:22:34,800 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a_true-unreach-call.c [2018-12-09 15:22:34,805 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:22:34,810 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:22:34,818 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:22:34,835 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 15:22:34,835 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:22:34,836 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:22:34,836 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:22:34,836 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:22:34,836 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:22:34,836 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:22:34,836 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:22:34,836 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:22:34,847 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2018-12-09 15:22:34,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 15:22:34,851 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:34,851 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:22:34,852 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:34,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:34,856 INFO L82 PathProgramCache]: Analyzing trace with hash 913677384, now seen corresponding path program 1 times [2018-12-09 15:22:34,858 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:22:34,859 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 15:22:34,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:35,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:22:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:35,089 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:22:35,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:22:35,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 15:22:35,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 15:22:35,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 15:22:35,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:22:35,111 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 2 states. [2018-12-09 15:22:35,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:22:35,132 INFO L93 Difference]: Finished difference Result 215 states and 339 transitions. [2018-12-09 15:22:35,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 15:22:35,132 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-09 15:22:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:22:35,139 INFO L225 Difference]: With dead ends: 215 [2018-12-09 15:22:35,139 INFO L226 Difference]: Without dead ends: 107 [2018-12-09 15:22:35,141 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:22:35,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-12-09 15:22:35,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-12-09 15:22:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-12-09 15:22:35,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2018-12-09 15:22:35,172 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 20 [2018-12-09 15:22:35,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:22:35,172 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2018-12-09 15:22:35,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 15:22:35,172 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2018-12-09 15:22:35,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 15:22:35,173 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:35,173 INFO L402 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] [2018-12-09 15:22:35,173 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:35,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:35,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1713483969, now seen corresponding path program 1 times [2018-12-09 15:22:35,174 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:22:35,174 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 15:22:35,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:35,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:22:35,574 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 15:22:35,575 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 15:22:35,578 INFO L478 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 43 [2018-12-09 15:22:35,632 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 15:22:35,638 INFO L478 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-12-09 15:22:35,638 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 15:22:35,666 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-12-09 15:22:35,676 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-12-09 15:22:35,676 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 15:22:35,691 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 15:22:35,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 15:22:35,737 INFO L267 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. [2018-12-09 15:22:35,737 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:49, output treesize:21 [2018-12-09 15:22:36,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:36,147 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:22:36,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:22:36,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 15:22:36,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 15:22:36,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 15:22:36,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:22:36,163 INFO L87 Difference]: Start difference. First operand 107 states and 147 transitions. Second operand 10 states. [2018-12-09 15:22:38,421 WARN L180 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-12-09 15:22:44,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:22:44,175 INFO L93 Difference]: Finished difference Result 139 states and 188 transitions. [2018-12-09 15:22:44,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 15:22:44,177 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-12-09 15:22:44,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:22:44,178 INFO L225 Difference]: With dead ends: 139 [2018-12-09 15:22:44,178 INFO L226 Difference]: Without dead ends: 100 [2018-12-09 15:22:44,179 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-12-09 15:22:44,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-12-09 15:22:44,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-12-09 15:22:44,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-09 15:22:44,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 132 transitions. [2018-12-09 15:22:44,189 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 132 transitions. Word has length 22 [2018-12-09 15:22:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:22:44,189 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 132 transitions. [2018-12-09 15:22:44,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 15:22:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 132 transitions. [2018-12-09 15:22:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 15:22:44,190 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:44,190 INFO L402 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] [2018-12-09 15:22:44,190 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:44,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:44,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1022435374, now seen corresponding path program 1 times [2018-12-09 15:22:44,191 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:22:44,191 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 15:22:44,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:44,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:22:44,484 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 15:22:44,485 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 15:22:44,486 INFO L478 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 43 [2018-12-09 15:22:44,525 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 15:22:44,529 INFO L478 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-12-09 15:22:44,529 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 15:22:44,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-12-09 15:22:44,548 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-12-09 15:22:44,548 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 15:22:44,550 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 15:22:44,553 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 15:22:44,566 INFO L267 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. [2018-12-09 15:22:44,566 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-12-09 15:22:44,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:44,644 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:22:44,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:22:44,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:22:44,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:22:44,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:22:44,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:22:44,656 INFO L87 Difference]: Start difference. First operand 100 states and 132 transitions. Second operand 7 states. [2018-12-09 15:22:48,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:22:48,161 INFO L93 Difference]: Finished difference Result 142 states and 189 transitions. [2018-12-09 15:22:48,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:22:48,162 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-12-09 15:22:48,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:22:48,163 INFO L225 Difference]: With dead ends: 142 [2018-12-09 15:22:48,163 INFO L226 Difference]: Without dead ends: 100 [2018-12-09 15:22:48,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:22:48,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-12-09 15:22:48,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-12-09 15:22:48,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-09 15:22:48,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 131 transitions. [2018-12-09 15:22:48,170 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 131 transitions. Word has length 27 [2018-12-09 15:22:48,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:22:48,170 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 131 transitions. [2018-12-09 15:22:48,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:22:48,170 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 131 transitions. [2018-12-09 15:22:48,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 15:22:48,171 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:48,171 INFO L402 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] [2018-12-09 15:22:48,171 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:48,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:48,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1623541808, now seen corresponding path program 1 times [2018-12-09 15:22:48,172 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:22:48,172 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/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 [2018-12-09 15:22:48,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:48,334 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:22:48,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:48,606 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:22:48,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:22:48,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 15:22:48,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 15:22:48,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 15:22:48,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-09 15:22:48,621 INFO L87 Difference]: Start difference. First operand 100 states and 131 transitions. Second operand 8 states. [2018-12-09 15:22:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:22:53,981 INFO L93 Difference]: Finished difference Result 149 states and 198 transitions. [2018-12-09 15:22:53,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 15:22:53,982 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-09 15:22:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:22:53,985 INFO L225 Difference]: With dead ends: 149 [2018-12-09 15:22:53,985 INFO L226 Difference]: Without dead ends: 102 [2018-12-09 15:22:53,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-09 15:22:53,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-12-09 15:22:53,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2018-12-09 15:22:53,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-09 15:22:53,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 128 transitions. [2018-12-09 15:22:53,994 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 128 transitions. Word has length 27 [2018-12-09 15:22:53,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:22:53,995 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 128 transitions. [2018-12-09 15:22:53,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 15:22:53,995 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 128 transitions. [2018-12-09 15:22:53,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 15:22:53,995 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:53,996 INFO L402 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] [2018-12-09 15:22:53,996 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:53,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:53,996 INFO L82 PathProgramCache]: Analyzing trace with hash -943483438, now seen corresponding path program 1 times [2018-12-09 15:22:53,996 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:22:53,997 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/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 [2018-12-09 15:22:53,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:54,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:22:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:54,208 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:22:54,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:22:54,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:22:54,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:22:54,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:22:54,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:22:54,218 INFO L87 Difference]: Start difference. First operand 100 states and 128 transitions. Second operand 7 states. [2018-12-09 15:22:58,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:22:58,500 INFO L93 Difference]: Finished difference Result 107 states and 135 transitions. [2018-12-09 15:22:58,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:22:58,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-12-09 15:22:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:22:58,502 INFO L225 Difference]: With dead ends: 107 [2018-12-09 15:22:58,502 INFO L226 Difference]: Without dead ends: 104 [2018-12-09 15:22:58,502 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:22:58,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-12-09 15:22:58,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-12-09 15:22:58,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-12-09 15:22:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2018-12-09 15:22:58,511 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 27 [2018-12-09 15:22:58,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:22:58,512 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2018-12-09 15:22:58,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:22:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2018-12-09 15:22:58,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 15:22:58,512 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:58,512 INFO L402 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, 1, 1] [2018-12-09 15:22:58,513 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:58,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:58,513 INFO L82 PathProgramCache]: Analyzing trace with hash 339831190, now seen corresponding path program 1 times [2018-12-09 15:22:58,513 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:22:58,513 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/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 [2018-12-09 15:22:58,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:58,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:22:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:59,162 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:22:59,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:22:59,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 15:22:59,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 15:22:59,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 15:22:59,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:22:59,172 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand 10 states. [2018-12-09 15:23:00,255 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-12-09 15:23:01,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:23:01,532 INFO L93 Difference]: Finished difference Result 119 states and 147 transitions. [2018-12-09 15:23:01,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 15:23:01,534 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2018-12-09 15:23:01,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:23:01,535 INFO L225 Difference]: With dead ends: 119 [2018-12-09 15:23:01,535 INFO L226 Difference]: Without dead ends: 74 [2018-12-09 15:23:01,535 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2018-12-09 15:23:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-09 15:23:01,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-12-09 15:23:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-12-09 15:23:01,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2018-12-09 15:23:01,542 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 29 [2018-12-09 15:23:01,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:23:01,543 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2018-12-09 15:23:01,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 15:23:01,543 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2018-12-09 15:23:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 15:23:01,544 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:23:01,544 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:23:01,544 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:23:01,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:23:01,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1885367956, now seen corresponding path program 1 times [2018-12-09 15:23:01,545 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:23:01,545 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-09 15:23:01,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:23:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:23:01,754 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:23:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:23:01,899 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:23:01,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:23:01,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 15:23:01,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 15:23:01,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 15:23:01,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:23:01,910 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 9 states. [2018-12-09 15:23:21,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:23:21,674 INFO L93 Difference]: Finished difference Result 96 states and 108 transitions. [2018-12-09 15:23:21,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 15:23:21,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-12-09 15:23:21,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:23:21,987 INFO L225 Difference]: With dead ends: 96 [2018-12-09 15:23:21,987 INFO L226 Difference]: Without dead ends: 74 [2018-12-09 15:23:21,988 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-12-09 15:23:21,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-09 15:23:21,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2018-12-09 15:23:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-12-09 15:23:21,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2018-12-09 15:23:21,992 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 35 [2018-12-09 15:23:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:23:21,992 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2018-12-09 15:23:21,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 15:23:21,993 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2018-12-09 15:23:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 15:23:21,993 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:23:21,993 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:23:21,993 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:23:21,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:23:21,994 INFO L82 PathProgramCache]: Analyzing trace with hash -129513543, now seen corresponding path program 1 times [2018-12-09 15:23:21,994 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:23:21,994 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-12-09 15:23:21,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:23:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:23:22,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:23:22,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:23:22,370 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:23:22,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:23:22,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 15:23:22,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 15:23:22,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 15:23:22,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:23:22,382 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand 10 states. [2018-12-09 15:23:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:23:41,634 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2018-12-09 15:23:41,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 15:23:41,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-12-09 15:23:41,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:23:41,965 INFO L225 Difference]: With dead ends: 81 [2018-12-09 15:23:41,965 INFO L226 Difference]: Without dead ends: 78 [2018-12-09 15:23:41,966 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-12-09 15:23:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-12-09 15:23:41,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2018-12-09 15:23:41,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-12-09 15:23:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2018-12-09 15:23:41,970 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 35 [2018-12-09 15:23:41,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:23:41,970 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2018-12-09 15:23:41,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 15:23:41,970 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2018-12-09 15:23:41,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 15:23:41,971 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:23:41,971 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:23:41,971 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:23:41,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:23:41,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1485202835, now seen corresponding path program 1 times [2018-12-09 15:23:41,971 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:23:41,972 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-12-09 15:23:41,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:23:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:23:42,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:23:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:23:42,343 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:23:42,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:23:42,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-09 15:23:42,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 15:23:42,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 15:23:42,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-09 15:23:42,353 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand 12 states. [2018-12-09 15:23:43,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:23:43,498 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2018-12-09 15:23:43,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 15:23:43,498 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2018-12-09 15:23:43,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:23:43,499 INFO L225 Difference]: With dead ends: 82 [2018-12-09 15:23:43,499 INFO L226 Difference]: Without dead ends: 69 [2018-12-09 15:23:43,499 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-12-09 15:23:43,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-12-09 15:23:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-12-09 15:23:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-09 15:23:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2018-12-09 15:23:43,503 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 35 [2018-12-09 15:23:43,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:23:43,503 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2018-12-09 15:23:43,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 15:23:43,503 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2018-12-09 15:23:43,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-09 15:23:43,503 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:23:43,503 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:23:43,503 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:23:43,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:23:43,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1963333289, now seen corresponding path program 1 times [2018-12-09 15:23:43,504 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:23:43,504 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-12-09 15:23:43,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:23:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:23:47,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:23:47,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:23:47,416 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:23:47,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:23:47,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 15:23:47,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 15:23:47,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 15:23:47,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:23:47,467 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand 9 states. [2018-12-09 15:24:12,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:24:12,359 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2018-12-09 15:24:12,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 15:24:12,701 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-12-09 15:24:12,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:24:12,701 INFO L225 Difference]: With dead ends: 94 [2018-12-09 15:24:12,701 INFO L226 Difference]: Without dead ends: 70 [2018-12-09 15:24:12,702 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-12-09 15:24:12,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-09 15:24:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2018-12-09 15:24:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-09 15:24:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2018-12-09 15:24:12,707 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 37 [2018-12-09 15:24:12,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:24:12,707 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2018-12-09 15:24:12,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 15:24:12,707 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2018-12-09 15:24:12,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-09 15:24:12,708 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:24:12,708 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:24:12,708 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:24:12,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:24:12,708 INFO L82 PathProgramCache]: Analyzing trace with hash -616077712, now seen corresponding path program 1 times [2018-12-09 15:24:12,708 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:24:12,708 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-12-09 15:24:12,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:24:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:24:16,549 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:24:18,891 WARN L180 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-12-09 15:24:22,538 WARN L180 SmtUtils]: Spent 965.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-12-09 15:24:22,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:24:22,544 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:24:22,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:24:22,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 15:24:22,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 15:24:22,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 15:24:22,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-09 15:24:22,599 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 8 states. [2018-12-09 15:24:29,484 WARN L180 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 16 [2018-12-09 15:24:40,488 WARN L180 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 16 [2018-12-09 15:24:51,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:24:51,065 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2018-12-09 15:24:51,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 15:24:51,074 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2018-12-09 15:24:51,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:24:51,074 INFO L225 Difference]: With dead ends: 91 [2018-12-09 15:24:51,074 INFO L226 Difference]: Without dead ends: 68 [2018-12-09 15:24:51,075 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:24:51,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-12-09 15:24:51,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-12-09 15:24:51,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-12-09 15:24:51,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2018-12-09 15:24:51,080 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 38 [2018-12-09 15:24:51,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:24:51,080 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2018-12-09 15:24:51,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 15:24:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2018-12-09 15:24:51,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-09 15:24:51,081 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:24:51,081 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:24:51,081 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:24:51,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:24:51,081 INFO L82 PathProgramCache]: Analyzing trace with hash -151194284, now seen corresponding path program 1 times [2018-12-09 15:24:51,081 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:24:51,081 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-12-09 15:24:51,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:24:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:24:51,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:24:51,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:24:51,658 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:24:51,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:24:51,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-12-09 15:24:51,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 15:24:51,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 15:24:51,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-12-09 15:24:51,670 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 15 states. [2018-12-09 15:25:07,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:25:07,413 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2018-12-09 15:25:07,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 15:25:07,413 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2018-12-09 15:25:07,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:25:07,414 INFO L225 Difference]: With dead ends: 73 [2018-12-09 15:25:07,414 INFO L226 Difference]: Without dead ends: 59 [2018-12-09 15:25:07,414 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2018-12-09 15:25:07,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-12-09 15:25:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-12-09 15:25:07,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-12-09 15:25:07,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2018-12-09 15:25:07,418 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 43 [2018-12-09 15:25:07,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:25:07,419 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2018-12-09 15:25:07,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 15:25:07,419 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2018-12-09 15:25:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 15:25:07,419 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:25:07,419 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:25:07,419 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:25:07,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:25:07,420 INFO L82 PathProgramCache]: Analyzing trace with hash 2143946732, now seen corresponding path program 1 times [2018-12-09 15:25:07,420 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:25:07,420 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2018-12-09 15:25:07,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:25:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:25:11,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:25:12,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:25:12,040 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:25:12,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:25:12,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 15:25:12,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 15:25:12,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 15:25:12,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:25:12,103 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 9 states. [2018-12-09 15:25:32,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:25:32,722 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2018-12-09 15:25:32,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 15:25:32,723 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-12-09 15:25:32,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:25:32,724 INFO L225 Difference]: With dead ends: 81 [2018-12-09 15:25:32,724 INFO L226 Difference]: Without dead ends: 58 [2018-12-09 15:25:32,724 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-12-09 15:25:32,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-12-09 15:25:32,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-12-09 15:25:32,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-12-09 15:25:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2018-12-09 15:25:32,728 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 47 [2018-12-09 15:25:32,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:25:32,729 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2018-12-09 15:25:32,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 15:25:32,729 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-12-09 15:25:32,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 15:25:32,729 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:25:32,729 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:25:32,730 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:25:32,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:25:32,730 INFO L82 PathProgramCache]: Analyzing trace with hash -836458260, now seen corresponding path program 1 times [2018-12-09 15:25:32,730 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:25:32,730 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05ed01e-31e0-455c-9c64-716db6c0e281/bin-2019/utaipan/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2018-12-09 15:25:32,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:25:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:25:37,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:25:37,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:25:37,319 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:25:37,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:25:37,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 15:25:37,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 15:25:37,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 15:25:37,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:25:37,380 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 9 states. [2018-12-09 15:25:48,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:25:48,327 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-12-09 15:25:48,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 15:25:48,327 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-12-09 15:25:48,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:25:48,327 INFO L225 Difference]: With dead ends: 58 [2018-12-09 15:25:48,327 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 15:25:48,328 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-12-09 15:25:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 15:25:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 15:25:48,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 15:25:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 15:25:48,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-12-09 15:25:48,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:25:48,328 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:25:48,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 15:25:48,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:25:48,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 15:25:48,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 15:26:15,368 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-12-09 15:26:15,369 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:191) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1009) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:346) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 31 more [2018-12-09 15:26:15,371 INFO L168 Benchmark]: Toolchain (without parser) took 237970.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 944.7 MB in the beginning and 918.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 229.6 MB. Max. memory is 11.5 GB. [2018-12-09 15:26:15,371 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:26:15,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.84 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-09 15:26:15,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -205.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-12-09 15:26:15,372 INFO L168 Benchmark]: Boogie Preprocessor took 32.65 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. [2018-12-09 15:26:15,372 INFO L168 Benchmark]: RCFGBuilder took 17086.13 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2018-12-09 15:26:15,372 INFO L168 Benchmark]: TraceAbstraction took 220573.54 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 918.5 MB in the end (delta: 136.8 MB). Peak memory consumption was 199.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:26:15,374 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.84 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -205.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.65 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 17086.13 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 220573.54 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 918.5 MB in the end (delta: 136.8 MB). Peak memory consumption was 199.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 271]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...