./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/inv_Newton_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/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 66b71342bd068aaa5aa0847a6efcac54b98c09c9 ............................................................................................................................................................................................................................................................................................................................................................................................................... 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_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/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 66b71342bd068aaa5aa0847a6efcac54b98c09c9 ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_3 term size 47 --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:24:42,107 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:24:42,108 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:24:42,118 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:24:42,118 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:24:42,119 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:24:42,120 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:24:42,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:24:42,123 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:24:42,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:24:42,124 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:24:42,125 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:24:42,126 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:24:42,127 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:24:42,128 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:24:42,129 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:24:42,130 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:24:42,132 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:24:42,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:24:42,135 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:24:42,136 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:24:42,138 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:24:42,140 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:24:42,141 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:24:42,141 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:24:42,142 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:24:42,143 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:24:42,144 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:24:42,144 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:24:42,145 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:24:42,146 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:24:42,147 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:24:42,147 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:24:42,147 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:24:42,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:24:42,149 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:24:42,149 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 04:24:42,162 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:24:42,163 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:24:42,163 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:24:42,164 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:24:42,164 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:24:42,164 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:24:42,164 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 04:24:42,164 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:24:42,165 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 04:24:42,165 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 04:24:42,165 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:24:42,166 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:24:42,166 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:24:42,167 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:24:42,167 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:24:42,167 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:24:42,167 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:24:42,167 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:24:42,167 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:24:42,168 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:24:42,168 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:24:42,168 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:24:42,168 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:24:42,168 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:24:42,169 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:24:42,169 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:24:42,169 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:24:42,169 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:24:42,169 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:24:42,169 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:24:42,169 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 04:24:42,169 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:24:42,169 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:24:42,170 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 04:24:42,170 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_4182f572-b3ce-42e2-bc3b-d9f492abb88b/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 -> 66b71342bd068aaa5aa0847a6efcac54b98c09c9 [2018-11-10 04:24:42,198 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:24:42,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:24:42,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:24:42,213 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:24:42,214 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:24:42,214 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_Newton_false-unreach-call.c [2018-11-10 04:24:42,262 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data/47185e07e/706e046645294529ad8f8c8937fcd8f0/FLAGaa0dcbd31 [2018-11-10 04:24:42,647 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:24:42,648 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/sv-benchmarks/c/float-benchs/inv_Newton_false-unreach-call.c [2018-11-10 04:24:42,654 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data/47185e07e/706e046645294529ad8f8c8937fcd8f0/FLAGaa0dcbd31 [2018-11-10 04:24:42,666 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data/47185e07e/706e046645294529ad8f8c8937fcd8f0 [2018-11-10 04:24:42,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:24:42,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:24:42,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:24:42,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:24:42,677 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:24:42,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce791db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42, skipping insertion in model container [2018-11-10 04:24:42,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:24:42,714 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:24:42,848 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:24:42,851 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:24:42,867 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:24:42,883 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:24:42,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42 WrapperNode [2018-11-10 04:24:42,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:24:42,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:24:42,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:24:42,885 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:24:42,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:24:42,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:24:42,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:24:42,918 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:24:42,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... [2018-11-10 04:24:42,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:24:42,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:24:42,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:24:42,938 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:24:42,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/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 [2018-11-10 04:24:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:24:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:24:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure inv [2018-11-10 04:24:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure inv [2018-11-10 04:24:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:24:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:24:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:24:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:24:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 04:24:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 04:24:43,243 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:24:43,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:24:43 BoogieIcfgContainer [2018-11-10 04:24:43,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:24:43,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:24:43,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:24:43,247 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:24:43,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:24:42" (1/3) ... [2018-11-10 04:24:43,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdc10a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:24:43, skipping insertion in model container [2018-11-10 04:24:43,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:42" (2/3) ... [2018-11-10 04:24:43,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdc10a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:24:43, skipping insertion in model container [2018-11-10 04:24:43,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:24:43" (3/3) ... [2018-11-10 04:24:43,250 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_Newton_false-unreach-call.c [2018-11-10 04:24:43,257 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:24:43,264 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:24:43,279 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:24:43,306 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:24:43,306 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:24:43,306 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:24:43,306 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:24:43,307 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:24:43,307 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:24:43,307 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:24:43,307 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:24:43,325 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-10 04:24:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 04:24:43,330 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:24:43,331 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:24:43,332 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:24:43,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:24:43,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1869648858, now seen corresponding path program 1 times [2018-11-10 04:24:43,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:24:43,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:24:43,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:24:43,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:24:43,387 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:24:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:24:43,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:24:43,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:24:43,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:24:43,492 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:24:43,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 04:24:43,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 04:24:43,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:24:43,514 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2018-11-10 04:24:43,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:24:43,531 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-11-10 04:24:43,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 04:24:43,533 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 04:24:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:24:43,542 INFO L225 Difference]: With dead ends: 42 [2018-11-10 04:24:43,543 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 04:24:43,546 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:24:43,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 04:24:43,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 04:24:43,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 04:24:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-10 04:24:43,582 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-11-10 04:24:43,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:24:43,582 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-11-10 04:24:43,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 04:24:43,582 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-10 04:24:43,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 04:24:43,583 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:24:43,583 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:24:43,584 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:24:43,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:24:43,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1432943462, now seen corresponding path program 1 times [2018-11-10 04:24:43,584 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:24:43,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:24:43,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:24:43,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:24:43,586 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:24:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:24:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:24:43,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:24:43,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 04:24:43,681 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:24:43,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:24:43,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:24:43,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:24:43,683 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2018-11-10 04:24:43,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:24:43,699 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-11-10 04:24:43,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:24:43,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-10 04:24:43,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:24:43,701 INFO L225 Difference]: With dead ends: 30 [2018-11-10 04:24:43,701 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 04:24:43,702 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:24:43,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 04:24:43,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-10 04:24:43,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 04:24:43,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-10 04:24:43,706 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 18 [2018-11-10 04:24:43,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:24:43,707 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-11-10 04:24:43,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:24:43,707 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-10 04:24:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 04:24:43,708 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:24:43,708 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:24:43,708 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:24:43,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:24:43,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1031220372, now seen corresponding path program 1 times [2018-11-10 04:24:43,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:24:43,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:24:43,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:24:43,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:24:43,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:24:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:24:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:24:43,778 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 04:24:43,793 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,794 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,795 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,795 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,795 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,796 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,796 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,797 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,797 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,797 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,798 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:24:43,798 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,798 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,799 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:24:43,799 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:24:43,799 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,799 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:24:43,800 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:24:43,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:24:43 BoogieIcfgContainer [2018-11-10 04:24:43,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:24:43,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:24:43,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:24:43,820 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:24:43,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:24:43" (3/4) ... [2018-11-10 04:24:43,825 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 04:24:43,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:24:43,826 INFO L168 Benchmark]: Toolchain (without parser) took 1155.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -132.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:43,828 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:24:43,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.07 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:43,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.82 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:43,829 INFO L168 Benchmark]: Boogie Preprocessor took 20.16 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:43,830 INFO L168 Benchmark]: RCFGBuilder took 306.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:43,831 INFO L168 Benchmark]: TraceAbstraction took 575.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:43,831 INFO L168 Benchmark]: Witness Printer took 5.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:24:43,834 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 212.07 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.82 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.16 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 306.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 575.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.44 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 40, overapproximation of to_real at line 33. Possible FailurePath: [L48] double a,r; [L50] a = __VERIFIER_nondet_double() [L53] CALL, EXPR inv(a) [L28] double xi, xsi, temp; [L29] signed int cond, exp; [L30] CALL union double_int A_u, xi_u; [L30] RET union double_int A_u, xi_u; [L30] RET union double_int A_u, xi_u; [L31] CALL A_u.d = A [L31] RET A_u.d = A [L32] CALL, EXPR A_u.i [L32] RET, EXPR A_u.i [L32] exp = (signed int) ((A_u.i & 0x7FF00000) >> 20) - 1023 [L32] RET exp = (signed int) ((A_u.i & 0x7FF00000) >> 20) - 1023 [L33] CALL xi_u.d = 1 [L33] RET xi_u.d = 1 [L34] CALL xi_u.i = ((1023-exp) << 20) [L34] RET xi_u.i = ((1023-exp) << 20) [L35] CALL, EXPR xi_u.d [L35] RET, EXPR xi_u.d [L35] xi = xi_u.d [L35] RET xi = xi_u.d [L36] cond = 1 [L37] COND TRUE \read(cond) [L38] xsi = 2*xi-A*xi*xi [L39] temp = xsi-xi [L40] cond = ((temp > 1e-10) || (temp < -1e-10)) [L41] xi = xsi [L37] COND FALSE !(\read(cond)) [L43] return xi; [L43] return xi; [L43] RET return xi; [L53] EXPR inv(a) VAL [a=2145386503, inv(a)=2145386498] [L53] r = inv(a) [L55] CALL __VERIFIER_assert(r >= 0 && r <= 0.06) VAL [\old(cond)=0] [L18] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 613 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 0.1.23-1dbac8b [2018-11-10 04:24:45,607 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:24:45,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:24:45,620 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:24:45,620 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:24:45,621 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:24:45,622 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:24:45,623 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:24:45,625 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:24:45,626 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:24:45,627 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:24:45,627 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:24:45,628 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:24:45,629 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:24:45,631 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:24:45,632 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:24:45,632 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:24:45,634 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:24:45,636 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:24:45,638 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:24:45,639 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:24:45,640 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:24:45,643 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:24:45,643 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:24:45,643 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:24:45,644 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:24:45,645 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:24:45,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:24:45,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:24:45,649 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:24:45,649 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:24:45,650 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:24:45,650 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:24:45,650 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:24:45,651 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:24:45,652 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:24:45,652 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 04:24:45,666 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:24:45,667 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:24:45,668 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:24:45,668 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:24:45,668 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:24:45,668 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:24:45,668 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:24:45,669 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:24:45,669 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:24:45,670 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:24:45,671 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:24:45,671 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:24:45,671 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:24:45,671 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:24:45,671 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:24:45,671 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 04:24:45,672 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 04:24:45,672 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:24:45,672 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:24:45,672 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:24:45,672 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:24:45,673 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:24:45,673 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:24:45,673 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:24:45,673 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:24:45,673 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:24:45,675 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:24:45,676 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:24:45,676 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 04:24:45,676 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:24:45,676 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 04:24:45,676 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 04:24:45,676 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_4182f572-b3ce-42e2-bc3b-d9f492abb88b/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 -> 66b71342bd068aaa5aa0847a6efcac54b98c09c9 [2018-11-10 04:24:45,717 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:24:45,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:24:45,732 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:24:45,733 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:24:45,734 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:24:45,734 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_Newton_false-unreach-call.c [2018-11-10 04:24:45,792 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data/7d117e118/0fe58efb2eb349ae80c4e0b7a3792544/FLAG826fbca4e [2018-11-10 04:24:46,164 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:24:46,164 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/sv-benchmarks/c/float-benchs/inv_Newton_false-unreach-call.c [2018-11-10 04:24:46,170 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data/7d117e118/0fe58efb2eb349ae80c4e0b7a3792544/FLAG826fbca4e [2018-11-10 04:24:46,180 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/bin-2019/utaipan/data/7d117e118/0fe58efb2eb349ae80c4e0b7a3792544 [2018-11-10 04:24:46,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:24:46,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:24:46,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:24:46,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:24:46,188 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:24:46,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de1527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46, skipping insertion in model container [2018-11-10 04:24:46,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:24:46,217 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:24:46,366 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:24:46,370 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:24:46,392 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:24:46,418 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:24:46,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46 WrapperNode [2018-11-10 04:24:46,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:24:46,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:24:46,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:24:46,419 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:24:46,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:24:46,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:24:46,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:24:46,459 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:24:46,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... [2018-11-10 04:24:46,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:24:46,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:24:46,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:24:46,492 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:24:46,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/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 [2018-11-10 04:24:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:24:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:24:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure inv [2018-11-10 04:24:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure inv [2018-11-10 04:24:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:24:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:24:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:24:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:24:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 04:24:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 04:24:46,810 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 04:24:48,943 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:24:48,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:24:48 BoogieIcfgContainer [2018-11-10 04:24:48,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:24:48,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:24:48,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:24:48,947 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:24:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:24:46" (1/3) ... [2018-11-10 04:24:48,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5699c2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:24:48, skipping insertion in model container [2018-11-10 04:24:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:24:46" (2/3) ... [2018-11-10 04:24:48,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5699c2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:24:48, skipping insertion in model container [2018-11-10 04:24:48,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:24:48" (3/3) ... [2018-11-10 04:24:48,951 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_Newton_false-unreach-call.c [2018-11-10 04:24:48,961 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:24:48,970 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:24:48,982 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:24:49,005 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:24:49,006 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:24:49,006 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:24:49,006 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:24:49,006 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:24:49,007 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:24:49,007 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:24:49,007 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:24:49,007 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:24:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-10 04:24:49,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 04:24:49,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:24:49,028 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:24:49,030 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:24:49,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:24:49,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1869648858, now seen corresponding path program 1 times [2018-11-10 04:24:49,039 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 04:24:49,039 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/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 [2018-11-10 04:24:49,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:24:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:24:49,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:24:49,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:24:49,164 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:24:49,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:24:49,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:24:49,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 04:24:49,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 04:24:49,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:24:49,193 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2018-11-10 04:24:49,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:24:49,211 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-11-10 04:24:49,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 04:24:49,212 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 04:24:49,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:24:49,219 INFO L225 Difference]: With dead ends: 42 [2018-11-10 04:24:49,219 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 04:24:49,222 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:24:49,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 04:24:49,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 04:24:49,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 04:24:49,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-10 04:24:49,251 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-11-10 04:24:49,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:24:49,251 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-11-10 04:24:49,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 04:24:49,252 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-10 04:24:49,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 04:24:49,252 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:24:49,252 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:24:49,253 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:24:49,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:24:49,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1432943462, now seen corresponding path program 1 times [2018-11-10 04:24:49,254 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 04:24:49,254 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/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 [2018-11-10 04:24:49,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:24:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:24:49,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:24:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:24:49,377 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:24:49,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:24:49,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 04:24:49,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:24:49,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:24:49,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:24:49,389 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2018-11-10 04:24:51,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:24:51,663 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-11-10 04:24:51,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:24:51,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-10 04:24:51,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:24:51,664 INFO L225 Difference]: With dead ends: 30 [2018-11-10 04:24:51,665 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 04:24:51,665 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:24:51,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 04:24:51,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-10 04:24:51,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 04:24:51,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-10 04:24:51,669 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 18 [2018-11-10 04:24:51,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:24:51,670 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-11-10 04:24:51,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:24:51,670 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-10 04:24:51,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 04:24:51,670 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:24:51,671 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:24:51,671 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:24:51,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:24:51,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1031220372, now seen corresponding path program 1 times [2018-11-10 04:24:51,672 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 04:24:51,672 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4182f572-b3ce-42e2-bc3b-d9f492abb88b/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 [2018-11-10 04:24:51,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:24:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:24:53,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:24:53,466 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 04:24:53,467 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 04:24:53,472 INFO L477 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 166 treesize of output 172 [2018-11-10 04:24:53,561 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 04:24:53,567 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 04:24:53,569 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 107 [2018-11-10 04:24:53,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 04:24:53,641 INFO L477 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 98 treesize of output 88 [2018-11-10 04:24:53,660 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 04:24:53,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 79 [2018-11-10 04:24:53,662 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 04:24:53,695 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 04:24:53,720 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 04:24:53,854 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 04:24:53,855 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 04:24:53,857 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 04:24:53,858 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 04:24:53,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 142 [2018-11-10 04:24:54,021 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2018-11-10 04:24:54,041 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 04:24:54,276 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2018-11-10 04:24:54,276 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_3 term size 47 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 04:24:54,279 INFO L168 Benchmark]: Toolchain (without parser) took 8095.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 949.2 MB in the beginning and 1.0 GB in the end (delta: -63.9 MB). Peak memory consumption was 73.0 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:54,280 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:24:54,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:54,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.80 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:24:54,281 INFO L168 Benchmark]: Boogie Preprocessor took 32.89 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:24:54,281 INFO L168 Benchmark]: RCFGBuilder took 2452.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:54,282 INFO L168 Benchmark]: TraceAbstraction took 5333.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:24:54,284 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 233.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.80 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.89 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2452.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5333.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_3 term size 47 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_3 term size 47: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...