./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i --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_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 0322173b3e50156a3157d6284ff4dd2480f2ac8d .............................................................................................................................................................................................................................................................................................................................. 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_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 0322173b3e50156a3157d6284ff4dd2480f2ac8d ............................................................................................................................................................................................................................................................................................................................................. 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 11:23:59,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:59,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:59,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:59,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:59,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:59,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:59,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:59,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:59,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:59,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:59,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:59,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:59,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:59,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:59,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:59,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:59,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:59,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:59,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:59,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:59,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:59,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:59,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:59,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:59,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:59,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:59,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:59,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:59,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:59,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:59,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:59,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:59,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:59,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:59,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:59,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:59,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:59,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:59,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:59,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:59,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:59,805 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:59,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:59,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:59,806 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:59,806 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:59,806 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:59,806 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:59,807 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:59,807 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:59,807 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:59,807 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:59,807 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:59,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:59,808 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:59,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:59,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:59,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:59,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:59,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:59,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:59,809 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:59,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:59,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:59,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:59,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:59,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:59,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:59,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:59,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:59,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:59,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:59,811 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:59,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:59,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:59,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:59,811 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_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 -> 0322173b3e50156a3157d6284ff4dd2480f2ac8d [2019-10-22 11:23:59,854 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:59,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:59,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:59,876 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:59,876 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:59,876 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2019-10-22 11:23:59,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data/49197ba4e/3a5bf1f4ce7a4bd583fa4979ac744ece/FLAG64b6a9a8c [2019-10-22 11:24:00,318 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:00,319 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2019-10-22 11:24:00,324 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data/49197ba4e/3a5bf1f4ce7a4bd583fa4979ac744ece/FLAG64b6a9a8c [2019-10-22 11:24:00,699 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data/49197ba4e/3a5bf1f4ce7a4bd583fa4979ac744ece [2019-10-22 11:24:00,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:00,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:00,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:00,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:00,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:00,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab7957f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00, skipping insertion in model container [2019-10-22 11:24:00,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,721 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:00,736 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:00,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:00,916 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:00,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:01,009 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:01,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01 WrapperNode [2019-10-22 11:24:01,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:01,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:01,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:01,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:01,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... [2019-10-22 11:24:01,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... [2019-10-22 11:24:01,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:01,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:01,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:01,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:01,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... [2019-10-22 11:24:01,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... [2019-10-22 11:24:01,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... [2019-10-22 11:24:01,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... [2019-10-22 11:24:01,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... [2019-10-22 11:24:01,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... [2019-10-22 11:24:01,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... [2019-10-22 11:24:01,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:01,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:01,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:01,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:01,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 11:24:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:24:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:01,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:24:01,259 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:01,259 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 11:24:01,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:01 BoogieIcfgContainer [2019-10-22 11:24:01,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:01,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:01,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:01,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:01,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:00" (1/3) ... [2019-10-22 11:24:01,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262141ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:01, skipping insertion in model container [2019-10-22 11:24:01,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:01" (2/3) ... [2019-10-22 11:24:01,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262141ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:01, skipping insertion in model container [2019-10-22 11:24:01,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:01" (3/3) ... [2019-10-22 11:24:01,266 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2019-10-22 11:24:01,274 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:01,280 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:24:01,289 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:24:01,309 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:01,309 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:01,309 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:01,309 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:01,309 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:01,309 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:01,310 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:01,310 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:01,321 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-10-22 11:24:01,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:24:01,326 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:01,327 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:24:01,328 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:01,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:01,333 INFO L82 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2019-10-22 11:24:01,341 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:01,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615997904] [2019-10-22 11:24:01,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:01,505 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 11:24:01,506 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615997904] [2019-10-22 11:24:01,506 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:01,507 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:01,507 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967375158] [2019-10-22 11:24:01,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:01,511 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:01,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:01,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:01,523 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2019-10-22 11:24:01,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:01,586 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-10-22 11:24:01,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:01,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-10-22 11:24:01,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:01,595 INFO L225 Difference]: With dead ends: 33 [2019-10-22 11:24:01,595 INFO L226 Difference]: Without dead ends: 12 [2019-10-22 11:24:01,597 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-22 11:24:01,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2019-10-22 11:24:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-10-22 11:24:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-10-22 11:24:01,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2019-10-22 11:24:01,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:01,628 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-10-22 11:24:01,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:01,628 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-10-22 11:24:01,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:24:01,628 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:01,629 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:01,629 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:01,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:01,629 INFO L82 PathProgramCache]: Analyzing trace with hash -185344033, now seen corresponding path program 1 times [2019-10-22 11:24:01,629 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:01,630 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580466682] [2019-10-22 11:24:01,630 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,630 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:01,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580466682] [2019-10-22 11:24:01,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81173493] [2019-10-22 11:24:01,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 11:24:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:01,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 26 conjunts are in the unsatisfiable core [2019-10-22 11:24:01,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:01,800 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:24:01,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:01,810 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:01,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:24:01,835 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:24:01,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:01,869 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [226728452] [2019-10-22 11:24:01,874 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 10 [2019-10-22 11:24:01,908 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:24:01,908 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:24:02,199 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:24:02,199 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 11:24:02,204 INFO L168 Benchmark]: Toolchain (without parser) took 1498.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 941.8 MB in the beginning and 1.0 GB in the end (delta: -94.6 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,204 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:02,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,206 INFO L168 Benchmark]: Boogie Preprocessor took 19.29 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,208 INFO L168 Benchmark]: RCFGBuilder took 198.79 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,210 INFO L168 Benchmark]: TraceAbstraction took 940.75 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: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,214 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 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.29 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 198.79 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 940.75 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: 62.5 MB). Peak memory consumption was 62.5 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 11:24:04,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:04,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:04,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:04,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:04,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:04,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:04,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:04,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:04,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:04,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:04,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:04,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:04,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:04,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:04,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:04,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:04,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:04,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:04,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:04,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:04,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:04,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:04,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:04,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:04,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:04,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:04,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:04,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:04,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:04,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:04,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:04,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:04,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:04,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:04,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:04,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:04,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:04,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:04,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:04,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:04,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:24:04,198 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:04,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:04,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:04,202 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:04,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:04,202 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:04,203 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:04,203 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:04,203 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:04,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:04,204 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:04,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:04,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:04,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:04,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:04,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:04,204 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:24:04,205 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:24:04,205 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:04,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:04,205 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:24:04,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:04,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:04,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:04,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:04,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:04,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:04,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:04,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:04,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:04,208 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:24:04,208 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:24:04,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:04,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:04,209 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_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 -> 0322173b3e50156a3157d6284ff4dd2480f2ac8d [2019-10-22 11:24:04,242 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:04,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:04,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:04,258 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:04,258 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:04,259 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2019-10-22 11:24:04,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data/82415b7a3/8041031ae82444ebbbdc26960fadc1bf/FLAGcbd4d160b [2019-10-22 11:24:04,698 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:04,699 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2019-10-22 11:24:04,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data/82415b7a3/8041031ae82444ebbbdc26960fadc1bf/FLAGcbd4d160b [2019-10-22 11:24:04,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/data/82415b7a3/8041031ae82444ebbbdc26960fadc1bf [2019-10-22 11:24:04,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:04,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:04,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:04,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:04,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:04,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:04,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779687ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04, skipping insertion in model container [2019-10-22 11:24:04,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:04,740 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:04,756 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:04,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:04,912 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:04,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:04,939 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:04,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04 WrapperNode [2019-10-22 11:24:04,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:04,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:04,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:04,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:04,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:05,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:05,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:05,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:05,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:05,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:05,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:05,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:05,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:05,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:05,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:05,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:05,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... [2019-10-22 11:24:05,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:05,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:05,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:05,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:05,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 11:24:05,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:05,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:24:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:24:05,280 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:05,280 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 11:24:05,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:05 BoogieIcfgContainer [2019-10-22 11:24:05,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:05,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:05,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:05,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:05,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:04" (1/3) ... [2019-10-22 11:24:05,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df4ca18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:05, skipping insertion in model container [2019-10-22 11:24:05,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:04" (2/3) ... [2019-10-22 11:24:05,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df4ca18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:05, skipping insertion in model container [2019-10-22 11:24:05,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:05" (3/3) ... [2019-10-22 11:24:05,288 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2019-10-22 11:24:05,295 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:05,301 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:24:05,311 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:24:05,332 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:05,332 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:05,332 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:05,333 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:05,333 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:05,333 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:05,333 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:05,333 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:05,342 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-10-22 11:24:05,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:24:05,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:05,348 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:24:05,349 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:05,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:05,354 INFO L82 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2019-10-22 11:24:05,360 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:05,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1745836171] [2019-10-22 11:24:05,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 11:24:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:05,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 11:24:05,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:05,552 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 11:24:05,552 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:05,588 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 11:24:05,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1745836171] [2019-10-22 11:24:05,589 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:05,589 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:24:05,590 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920987556] [2019-10-22 11:24:05,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:05,594 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:05,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:05,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:05,608 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 6 states. [2019-10-22 11:24:05,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:05,734 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2019-10-22 11:24:05,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:24:05,738 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2019-10-22 11:24:05,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:05,746 INFO L225 Difference]: With dead ends: 48 [2019-10-22 11:24:05,749 INFO L226 Difference]: Without dead ends: 17 [2019-10-22 11:24:05,752 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:24:05,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-22 11:24:05,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2019-10-22 11:24:05,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:24:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-10-22 11:24:05,780 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2019-10-22 11:24:05,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:05,780 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-10-22 11:24:05,780 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:05,780 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-10-22 11:24:05,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 11:24:05,781 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:05,781 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2019-10-22 11:24:05,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:05,982 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:05,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:05,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1625670603, now seen corresponding path program 1 times [2019-10-22 11:24:05,983 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:05,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1088010802] [2019-10-22 11:24:05,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 11:24:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:06,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 11:24:06,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:06,112 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:06,112 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:06,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1088010802] [2019-10-22 11:24:06,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862075688] [2019-10-22 11:24:06,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/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 11:24:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:06,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 11:24:06,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:06,246 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:06,249 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:06,257 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:06,258 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:24:06,259 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2019-10-22 11:24:06,259 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447963545] [2019-10-22 11:24:06,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:24:06,263 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:06,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:24:06,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:24:06,264 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2019-10-22 11:24:06,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:06,333 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-10-22 11:24:06,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:06,334 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-10-22 11:24:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:06,334 INFO L225 Difference]: With dead ends: 17 [2019-10-22 11:24:06,334 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:24:06,335 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:24:06,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:24:06,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:24:06,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:24:06,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:24:06,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-22 11:24:06,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:06,336 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:24:06,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:24:06,337 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:24:06,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:24:06,737 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 11:24:06,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:24:06,913 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-10-22 11:24:07,034 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:24:07,035 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-22 11:24:07,035 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:24:07,035 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:24:07,035 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:24:07,035 INFO L439 ceAbstractionStarter]: At program point L24(lines 14 25) the Hoare annotation is: (or (let ((.cse0 (bvadd ~tmp~0.offset (_ bv4294967292 32)))) (and (= ULTIMATE.start_glob2_~p~0.base ~tmp~0.base) (= .cse0 ULTIMATE.start_glob2_~p~0.offset) (= .cse0 (_ bv0 32)))) (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) [2019-10-22 11:24:07,035 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2019-10-22 11:24:07,036 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (let ((.cse0 (= (_ bv4 32) ULTIMATE.start_glob2_~pathlim.offset)) (.cse1 (= ULTIMATE.start_glob2_~p~0.base ~tmp~0.base))) (or (and .cse0 .cse1 (= (_ bv0 32) ULTIMATE.start_glob2_~p~0.offset) (= (bvadd ~tmp~0.offset (_ bv4294967292 32)) (_ bv0 32))) (and (= (_ bv8 32) ULTIMATE.start_glob2_~p~0.offset) .cse0 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (= (_ bv4 32) ULTIMATE.start_glob2_~p~0.offset) (bvsle ULTIMATE.start_glob2_~p~0.offset ~tmp~0.offset) .cse0 .cse1 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:24:07,036 INFO L443 ceAbstractionStarter]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2019-10-22 11:24:07,036 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-22 11:24:07,036 INFO L439 ceAbstractionStarter]: At program point L37(lines 27 38) the Hoare annotation is: (or (let ((.cse0 (bvadd ~tmp~0.offset (_ bv4294967292 32)))) (and (= ULTIMATE.start_glob2_~p~0.base ~tmp~0.base) (= .cse0 ULTIMATE.start_glob2_~p~0.offset) (= .cse0 (_ bv0 32)))) (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) [2019-10-22 11:24:07,037 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-22 11:24:07,037 INFO L439 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (let ((.cse0 (= (_ bv4 32) ULTIMATE.start_glob2_~pathlim.offset))) (or (and (= (_ bv4 32) ULTIMATE.start_glob2_~p~0.offset) (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) .cse0) (and .cse0 (= ULTIMATE.start_glob2_~p~0.base ~tmp~0.base) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ULTIMATE.start_glob2_~p~0.offset) (= (bvadd ~tmp~0.offset (_ bv4294967292 32)) (_ bv0 32))))) [2019-10-22 11:24:07,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:07 BoogieIcfgContainer [2019-10-22 11:24:07,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:07,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:07,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:07,067 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:07,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:05" (3/4) ... [2019-10-22 11:24:07,073 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:24:07,093 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-10-22 11:24:07,095 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:24:07,141 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f36d93b0-2dcc-4a9a-b416-aa5b9171d655/bin/utaipan/witness.graphml [2019-10-22 11:24:07,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:07,143 INFO L168 Benchmark]: Toolchain (without parser) took 2419.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -65.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:07,143 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 11:24:07,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.14 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 938.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:07,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -206.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:07,145 INFO L168 Benchmark]: Boogie Preprocessor took 23.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:07,145 INFO L168 Benchmark]: RCFGBuilder took 226.91 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:07,146 INFO L168 Benchmark]: TraceAbstraction took 1783.60 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: 98.8 MB). Peak memory consumption was 98.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:07,146 INFO L168 Benchmark]: Witness Printer took 75.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:07,149 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 215.14 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 938.9 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 90.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -206.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 226.91 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1783.60 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: 98.8 MB). Peak memory consumption was 98.8 MB. Max. memory is 11.5 GB. * Witness Printer took 75.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 18]: Loop Invariant Derived loop invariant: ((((4bv32 == pathlim && p == tmp) && 0bv32 == p) && ~bvadd64(tmp, 4294967292bv32) == 0bv32) || ((8bv32 == p && 4bv32 == pathlim) && !(cond == 0bv32))) || ((((4bv32 == p && ~bvsle32(p, tmp)) && 4bv32 == pathlim) && p == tmp) && ~bvadd64(cond, 4294967295bv32) == 0bv32) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((p == tmp && ~bvadd64(tmp, 4294967292bv32) == p) && ~bvadd64(tmp, 4294967292bv32) == 0bv32) || !(cond == 0bv32) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((4bv32 == p && !(cond == 0bv32)) && 4bv32 == pathlim) || ((((4bv32 == pathlim && p == tmp) && ~bvadd64(cond, 4294967295bv32) == 0bv32) && 0bv32 == p) && ~bvadd64(tmp, 4294967292bv32) == 0bv32) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((p == tmp && ~bvadd64(tmp, 4294967292bv32) == p) && ~bvadd64(tmp, 4294967292bv32) == 0bv32) || !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 16 SDtfs, 50 SDslu, 39 SDs, 0 SdLazy, 51 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=1, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 17 NumberOfFragments, 115 HoareAnnotationTreeSize, 4 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 3040 SizeOfPredicates, 26 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/32 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...