./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edcc597a46f9ad79563531282ca675b8b1d7c4bf ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edcc597a46f9ad79563531282ca675b8b1d7c4bf ........................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:09,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:09,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:09,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:09,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:09,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:09,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:09,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:09,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:09,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:09,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:09,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:09,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:09,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:10,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:10,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:10,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:10,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:10,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:10,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:10,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:10,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:10,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:10,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:10,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:10,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:10,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:10,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:10,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:10,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:10,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:10,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:10,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:10,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:10,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:10,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:10,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:10,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:10,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:10,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:10,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:10,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:27:10,039 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:10,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:10,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:10,041 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:10,042 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:10,042 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:10,042 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:27:10,042 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:10,042 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:10,043 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:27:10,043 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:27:10,043 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:10,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:10,044 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:10,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:10,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:10,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:10,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:10,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:10,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:10,045 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:10,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:10,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:10,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:10,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:10,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:10,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:10,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:10,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:10,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:10,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:10,049 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:27:10,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:27:10,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:10,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:10,050 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edcc597a46f9ad79563531282ca675b8b1d7c4bf [2019-10-22 11:27:10,093 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:10,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:10,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:10,110 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:10,110 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:10,111 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2019-10-22 11:27:10,172 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data/7b7cfd407/730a61be7e3b4c47aeae94295cc290cf/FLAGa11afe8e6 [2019-10-22 11:27:10,570 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:10,571 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/sv-benchmarks/c/recursive/McCarthy91-2.c [2019-10-22 11:27:10,578 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data/7b7cfd407/730a61be7e3b4c47aeae94295cc290cf/FLAGa11afe8e6 [2019-10-22 11:27:10,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data/7b7cfd407/730a61be7e3b4c47aeae94295cc290cf [2019-10-22 11:27:10,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:10,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:10,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:10,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:10,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:10,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:10" (1/1) ... [2019-10-22 11:27:10,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4676067c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:10, skipping insertion in model container [2019-10-22 11:27:10,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:10" (1/1) ... [2019-10-22 11:27:10,963 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:10,981 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:11,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:11,163 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:11,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:11,254 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:11,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11 WrapperNode [2019-10-22 11:27:11,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:11,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:11,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:11,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:11,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:11,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:11,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:11,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:11,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:11,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:11,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:11,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:11,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2019-10-22 11:27:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2019-10-22 11:27:11,507 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:11,508 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:27:11,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:11 BoogieIcfgContainer [2019-10-22 11:27:11,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:11,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:11,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:11,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:11,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:10" (1/3) ... [2019-10-22 11:27:11,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396607e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:11, skipping insertion in model container [2019-10-22 11:27:11,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11" (2/3) ... [2019-10-22 11:27:11,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396607e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:11, skipping insertion in model container [2019-10-22 11:27:11,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:11" (3/3) ... [2019-10-22 11:27:11,518 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c [2019-10-22 11:27:11,528 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:11,534 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:27:11,543 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:27:11,564 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:11,564 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:11,564 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:11,564 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:11,564 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:11,564 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:11,565 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:11,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:11,580 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-22 11:27:11,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:27:11,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:11,585 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:11,586 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:11,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:11,592 INFO L82 PathProgramCache]: Analyzing trace with hash -417462297, now seen corresponding path program 1 times [2019-10-22 11:27:11,602 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:11,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061265307] [2019-10-22 11:27:11,602 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:11,602 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:11,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:11,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061265307] [2019-10-22 11:27:11,841 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:11,842 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:11,842 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116635100] [2019-10-22 11:27:11,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:11,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:11,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:11,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:11,888 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2019-10-22 11:27:12,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:12,077 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2019-10-22 11:27:12,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:12,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-22 11:27:12,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:12,091 INFO L225 Difference]: With dead ends: 29 [2019-10-22 11:27:12,092 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 11:27:12,096 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:12,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 11:27:12,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-22 11:27:12,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-22 11:27:12,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-10-22 11:27:12,144 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 9 [2019-10-22 11:27:12,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:12,145 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-10-22 11:27:12,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:12,145 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-10-22 11:27:12,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:27:12,147 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:12,147 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:12,147 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:12,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:12,148 INFO L82 PathProgramCache]: Analyzing trace with hash 2030866466, now seen corresponding path program 1 times [2019-10-22 11:27:12,148 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:12,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854997530] [2019-10-22 11:27:12,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:12,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:12,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-22 11:27:12,403 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854997530] [2019-10-22 11:27:12,403 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92568378] [2019-10-22 11:27:12,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:12,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-22 11:27:12,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-22 11:27:12,544 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:12,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:27:12,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:27:12,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [701796765] [2019-10-22 11:27:12,937 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 22 [2019-10-22 11:27:12,977 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:27:12,977 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:27:13,234 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:13,235 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:27:13,240 INFO L168 Benchmark]: Toolchain (without parser) took 2296.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.5 MB in the beginning and 987.1 MB in the end (delta: -42.6 MB). Peak memory consumption was 98.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:13,241 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:13,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:13,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:13,243 INFO L168 Benchmark]: Boogie Preprocessor took 14.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:13,243 INFO L168 Benchmark]: RCFGBuilder took 205.10 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:13,244 INFO L168 Benchmark]: TraceAbstraction took 1727.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.1 MB in the end (delta: 130.5 MB). Peak memory consumption was 130.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:13,247 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 205.10 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1727.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.1 MB in the end (delta: 130.5 MB). Peak memory consumption was 130.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:15,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:15,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:15,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:15,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:15,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:15,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:15,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:15,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:15,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:15,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:15,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:15,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:15,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:15,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:15,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:15,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:15,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:15,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:15,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:15,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:15,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:15,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:15,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:15,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:15,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:15,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:15,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:15,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:15,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:15,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:15,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:15,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:15,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:15,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:15,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:15,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:15,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:15,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:15,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:15,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:15,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:27:15,530 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:15,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:15,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:15,532 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:15,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:15,532 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:15,532 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:15,532 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:15,533 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:15,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:15,534 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:15,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:15,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:15,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:15,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:15,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:15,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:27:15,535 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:27:15,535 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:15,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:15,536 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:27:15,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:15,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:15,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:15,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:15,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:15,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:15,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:15,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:15,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:15,537 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:27:15,538 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:27:15,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:15,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:15,538 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edcc597a46f9ad79563531282ca675b8b1d7c4bf [2019-10-22 11:27:15,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:15,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:15,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:15,580 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:15,580 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:15,580 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2019-10-22 11:27:15,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data/1a63ebf5b/809417be595141678e5bfea99e215bbb/FLAG713dde565 [2019-10-22 11:27:16,000 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:16,001 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/sv-benchmarks/c/recursive/McCarthy91-2.c [2019-10-22 11:27:16,006 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data/1a63ebf5b/809417be595141678e5bfea99e215bbb/FLAG713dde565 [2019-10-22 11:27:16,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/data/1a63ebf5b/809417be595141678e5bfea99e215bbb [2019-10-22 11:27:16,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:16,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:16,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:16,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:16,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:16,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3670d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16, skipping insertion in model container [2019-10-22 11:27:16,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,041 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:16,053 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:16,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:16,208 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:16,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:16,234 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:16,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16 WrapperNode [2019-10-22 11:27:16,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:16,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:16,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:16,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:16,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:16,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:16,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:16,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:16,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... [2019-10-22 11:27:16,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:16,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:16,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:16,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:16,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:16,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2019-10-22 11:27:16,372 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2019-10-22 11:27:16,494 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:16,494 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:27:16,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:16 BoogieIcfgContainer [2019-10-22 11:27:16,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:16,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:16,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:16,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:16,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:16" (1/3) ... [2019-10-22 11:27:16,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568c170c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:16, skipping insertion in model container [2019-10-22 11:27:16,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:16" (2/3) ... [2019-10-22 11:27:16,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568c170c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:16, skipping insertion in model container [2019-10-22 11:27:16,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:16" (3/3) ... [2019-10-22 11:27:16,501 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c [2019-10-22 11:27:16,510 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:16,516 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:27:16,526 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:27:16,547 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:16,547 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:16,547 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:16,547 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:16,547 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:16,547 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:16,547 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:16,547 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:16,562 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-22 11:27:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:27:16,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:16,567 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:16,569 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:16,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:16,574 INFO L82 PathProgramCache]: Analyzing trace with hash 2133741352, now seen corresponding path program 1 times [2019-10-22 11:27:16,583 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:16,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1603883966] [2019-10-22 11:27:16,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:16,643 WARN L254 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:27:16,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:16,785 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:17,054 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1603883966] [2019-10-22 11:27:17,055 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:17,055 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-10-22 11:27:17,055 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681046317] [2019-10-22 11:27:17,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:27:17,060 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:17,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:27:17,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:27:17,076 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 10 states. [2019-10-22 11:27:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:17,326 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-10-22 11:27:17,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:27:17,327 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2019-10-22 11:27:17,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:17,342 INFO L225 Difference]: With dead ends: 28 [2019-10-22 11:27:17,342 INFO L226 Difference]: Without dead ends: 15 [2019-10-22 11:27:17,346 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:27:17,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-22 11:27:17,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-22 11:27:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-22 11:27:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2019-10-22 11:27:17,384 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 9 [2019-10-22 11:27:17,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:17,385 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-10-22 11:27:17,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:27:17,385 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2019-10-22 11:27:17,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:27:17,387 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:17,387 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:17,588 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:17,588 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:17,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:17,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1989376947, now seen corresponding path program 1 times [2019-10-22 11:27:17,588 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:17,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1062172711] [2019-10-22 11:27:17,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:17,649 WARN L254 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-22 11:27:17,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 11:27:18,016 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:18,330 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2019-10-22 11:27:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:27:19,251 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1062172711] [2019-10-22 11:27:19,251 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431329459] [2019-10-22 11:27:19,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:19,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-22 11:27:19,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:27:19,457 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:27:19,820 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:27:19,820 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 10, 12] total 20 [2019-10-22 11:27:19,820 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314941558] [2019-10-22 11:27:19,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-22 11:27:19,822 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:19,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-22 11:27:19,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-22 11:27:19,825 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand 20 states. [2019-10-22 11:27:20,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:20,537 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-10-22 11:27:20,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 11:27:20,538 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 20 [2019-10-22 11:27:20,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:20,538 INFO L225 Difference]: With dead ends: 20 [2019-10-22 11:27:20,538 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:27:20,540 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 51 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2019-10-22 11:27:20,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:27:20,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:27:20,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:27:20,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:27:20,540 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-10-22 11:27:20,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:20,541 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:27:20,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-22 11:27:20,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:27:20,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:27:20,942 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:20,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:27:21,133 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:27:21,133 INFO L443 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-10-22 11:27:21,133 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:27:21,133 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:27:21,133 INFO L443 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-10-22 11:27:21,134 INFO L446 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: true [2019-10-22 11:27:21,134 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-10-22 11:27:21,134 INFO L439 ceAbstractionStarter]: At program point L24(lines 24 32) the Hoare annotation is: (or (and (bvsgt ULTIMATE.start_main_~x~0 (_ bv100 32)) (= (bvadd ULTIMATE.start_main_~x~0 (_ bv4294967286 32)) ULTIMATE.start_main_~result~0)) (= (_ bv91 32) ULTIMATE.start_main_~result~0)) [2019-10-22 11:27:21,134 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-10-22 11:27:21,134 INFO L443 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2019-10-22 11:27:21,135 INFO L443 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2019-10-22 11:27:21,135 INFO L446 ceAbstractionStarter]: At program point f91ENTRY(lines 15 21) the Hoare annotation is: true [2019-10-22 11:27:21,135 INFO L443 ceAbstractionStarter]: For program point f91FINAL(lines 15 21) no Hoare annotation was computed. [2019-10-22 11:27:21,135 INFO L439 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (not (bvsgt f91_~x (_ bv100 32))) (= |f91_#in~x| f91_~x)) [2019-10-22 11:27:21,135 INFO L443 ceAbstractionStarter]: For program point f91EXIT(lines 15 21) no Hoare annotation was computed. [2019-10-22 11:27:21,136 INFO L439 ceAbstractionStarter]: At program point L19-1(line 19) the Hoare annotation is: (and (not (bvsgt (bvadd |f91_#t~ret0| (_ bv4294967295 32)) (_ bv100 32))) (not (bvsgt f91_~x (_ bv100 32))) (bvsgt (bvadd |f91_#t~ret0| (_ bv10 32)) (_ bv100 32)) (= |f91_#in~x| f91_~x)) [2019-10-22 11:27:21,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:27:21 BoogieIcfgContainer [2019-10-22 11:27:21,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:27:21,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:27:21,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:27:21,148 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:27:21,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:16" (3/4) ... [2019-10-22 11:27:21,152 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:27:21,158 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2019-10-22 11:27:21,161 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 11:27:21,162 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:27:21,198 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_76153968-2a90-4cee-bfa7-29b26164623e/bin/utaipan/witness.graphml [2019-10-22 11:27:21,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:27:21,200 INFO L168 Benchmark]: Toolchain (without parser) took 5175.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 951.0 MB in the beginning and 800.6 MB in the end (delta: 150.4 MB). Peak memory consumption was 256.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:21,200 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:21,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.96 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:21,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:21,201 INFO L168 Benchmark]: Boogie Preprocessor took 15.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:21,202 INFO L168 Benchmark]: RCFGBuilder took 163.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:21,202 INFO L168 Benchmark]: TraceAbstraction took 4651.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 800.6 MB in the end (delta: 281.4 MB). Peak memory consumption was 281.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:21,203 INFO L168 Benchmark]: Witness Printer took 50.43 ms. Allocated memory is still 1.1 GB. Free memory is still 800.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:21,205 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.96 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 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 81.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 163.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4651.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 800.6 MB in the end (delta: 281.4 MB). Peak memory consumption was 281.4 MB. Max. memory is 11.5 GB. * Witness Printer took 50.43 ms. Allocated memory is still 1.1 GB. Free memory is still 800.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (~bvsgt32(x, 100bv32) && ~bvadd64(x, 4294967286bv32) == result) || 91bv32 == result - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 4.5s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 18 SDtfs, 30 SDslu, 70 SDs, 0 SdLazy, 192 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 59 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 14 PreInvPairs, 20 NumberOfFragments, 42 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 14380 SizeOfPredicates, 16 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 34/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...