./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Addition01-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/Addition01-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/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 91d2600fad1210650d8ad3da481cdcc11b280095 ......................................................................................................................................................................................................................................................................................................................................... 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/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/Addition01-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/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 91d2600fad1210650d8ad3da481cdcc11b280095 .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:38:40,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:38:40,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:38:40,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:38:40,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:38:40,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:38:40,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:38:40,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:38:40,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:38:40,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:38:40,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:38:40,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:38:40,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:38:40,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:38:40,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:38:40,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:38:40,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:38:40,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:38:40,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:38:40,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:38:40,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:38:40,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:38:40,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:38:40,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:38:40,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:38:40,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:38:40,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:38:40,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:38:40,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:38:40,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:38:40,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:38:40,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:38:40,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:38:40,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:38:40,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:38:40,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:38:40,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:38:40,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:38:40,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:38:40,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:38:40,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:38:40,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:38:40,827 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:38:40,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:38:40,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:38:40,839 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:38:40,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:38:40,839 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:38:40,839 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:38:40,839 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:38:40,840 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:38:40,840 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:38:40,840 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:38:40,840 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:38:40,840 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:38:40,841 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:38:40,841 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:38:40,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:38:40,841 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:38:40,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:38:40,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:38:40,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:38:40,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:38:40,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:38:40,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:38:40,844 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:38:40,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:38:40,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:38:40,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:38:40,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:38:40,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:38:40,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:40,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:38:40,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:38:40,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:38:40,846 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:38:40,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:38:40,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:38:40,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:38:40,847 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/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/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 -> 91d2600fad1210650d8ad3da481cdcc11b280095 [2019-11-26 02:38:41,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:38:41,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:38:41,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:38:41,025 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:38:41,026 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:38:41,026 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/../../sv-benchmarks/c/recursive/Addition01-2.c [2019-11-26 02:38:41,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data/f36851256/d83a3c8d509f48779e9bd3bcf237a4e0/FLAG73b91e538 [2019-11-26 02:38:41,448 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:38:41,449 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/sv-benchmarks/c/recursive/Addition01-2.c [2019-11-26 02:38:41,454 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data/f36851256/d83a3c8d509f48779e9bd3bcf237a4e0/FLAG73b91e538 [2019-11-26 02:38:41,890 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data/f36851256/d83a3c8d509f48779e9bd3bcf237a4e0 [2019-11-26 02:38:41,893 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:38:41,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:38:41,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:41,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:38:41,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:38:41,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a8a89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41, skipping insertion in model container [2019-11-26 02:38:41,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:38:41,930 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:38:42,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:42,081 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:38:42,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:42,175 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:38:42,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42 WrapperNode [2019-11-26 02:38:42,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:42,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:42,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:38:42,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:38:42,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... [2019-11-26 02:38:42,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... [2019-11-26 02:38:42,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:42,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:38:42,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:38:42,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:38:42,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... [2019-11-26 02:38:42,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... [2019-11-26 02:38:42,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... [2019-11-26 02:38:42,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... [2019-11-26 02:38:42,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... [2019-11-26 02:38:42,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... [2019-11-26 02:38:42,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... [2019-11-26 02:38:42,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:38:42,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:38:42,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:38:42,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:38:42,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/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 [2019-11-26 02:38:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:38:42,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:38:42,284 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2019-11-26 02:38:42,284 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2019-11-26 02:38:42,584 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:38:42,584 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:38:42,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:42 BoogieIcfgContainer [2019-11-26 02:38:42,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:38:42,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:38:42,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:38:42,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:38:42,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:38:41" (1/3) ... [2019-11-26 02:38:42,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75691287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:42, skipping insertion in model container [2019-11-26 02:38:42,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:42" (2/3) ... [2019-11-26 02:38:42,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75691287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:42, skipping insertion in model container [2019-11-26 02:38:42,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:42" (3/3) ... [2019-11-26 02:38:42,592 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2019-11-26 02:38:42,604 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:38:42,613 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:38:42,628 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:38:42,652 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:38:42,653 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:38:42,653 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:38:42,653 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:38:42,653 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:38:42,653 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:38:42,653 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:38:42,653 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:38:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-26 02:38:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:38:42,671 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:42,671 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:42,672 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:42,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:42,676 INFO L82 PathProgramCache]: Analyzing trace with hash -2068195676, now seen corresponding path program 1 times [2019-11-26 02:38:42,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:42,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179612495] [2019-11-26 02:38:42,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:38:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:42,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:42,924 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179612495] [2019-11-26 02:38:42,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:42,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:38:42,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671628790] [2019-11-26 02:38:42,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:38:42,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:38:42,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:38:42,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:38:42,945 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2019-11-26 02:38:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:43,165 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-11-26 02:38:43,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:38:43,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-26 02:38:43,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:43,175 INFO L225 Difference]: With dead ends: 30 [2019-11-26 02:38:43,175 INFO L226 Difference]: Without dead ends: 20 [2019-11-26 02:38:43,178 INFO L630 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 [2019-11-26 02:38:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-26 02:38:43,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-26 02:38:43,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-26 02:38:43,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2019-11-26 02:38:43,225 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 11 [2019-11-26 02:38:43,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:43,225 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-11-26 02:38:43,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:38:43,226 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2019-11-26 02:38:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:38:43,227 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:43,228 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:43,228 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:43,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:43,228 INFO L82 PathProgramCache]: Analyzing trace with hash 800728349, now seen corresponding path program 1 times [2019-11-26 02:38:43,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:43,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939924103] [2019-11-26 02:38:43,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:38:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:43,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939924103] [2019-11-26 02:38:43,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:43,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:38:43,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583594533] [2019-11-26 02:38:43,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:38:43,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:38:43,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:38:43,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:38:43,258 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand 4 states. [2019-11-26 02:38:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:43,292 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-11-26 02:38:43,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:38:43,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-26 02:38:43,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:43,294 INFO L225 Difference]: With dead ends: 30 [2019-11-26 02:38:43,294 INFO L226 Difference]: Without dead ends: 22 [2019-11-26 02:38:43,295 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:38:43,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-26 02:38:43,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-11-26 02:38:43,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-26 02:38:43,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-11-26 02:38:43,302 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 13 [2019-11-26 02:38:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:43,303 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-11-26 02:38:43,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:38:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-26 02:38:43,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-26 02:38:43,307 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:43,307 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:43,308 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:43,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:43,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1352688745, now seen corresponding path program 1 times [2019-11-26 02:38:43,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:43,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896250594] [2019-11-26 02:38:43,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:38:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:38:43,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896250594] [2019-11-26 02:38:43,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261806878] [2019-11-26 02:38:43,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/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 [2019-11-26 02:38:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:43,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-26 02:38:43,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:43,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:38:43,882 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:44,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:38:44,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:38:44,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:38:44,286 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1779251590] [2019-11-26 02:38:44,311 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-11-26 02:38:44,311 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:38:44,322 FATAL L310 FreeRefinementEngine]: Exception during interpolant generation: IllegalArgumentException [2019-11-26 02:38:44,542 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:38:44,543 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) 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.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) 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:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java: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) [2019-11-26 02:38:44,547 INFO L168 Benchmark]: Toolchain (without parser) took 2652.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 950.1 MB in the beginning and 913.0 MB in the end (delta: 37.1 MB). Peak memory consumption was 126.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:44,547 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:44,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:44,548 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.05 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. [2019-11-26 02:38:44,549 INFO L168 Benchmark]: Boogie Preprocessor took 17.96 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:44,550 INFO L168 Benchmark]: RCFGBuilder took 364.70 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: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:44,550 INFO L168 Benchmark]: TraceAbstraction took 1959.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 913.0 MB in the end (delta: 142.7 MB). Peak memory consumption was 142.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:44,553 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 280.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.05 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. * Boogie Preprocessor took 17.96 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 364.70 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: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1959.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 913.0 MB in the end (delta: 142.7 MB). Peak memory consumption was 142.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: Recursive programs are not supported. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: Recursive programs are not supported.: de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:38:46,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:38:46,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:38:46,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:38:46,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:38:46,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:38:46,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:38:46,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:38:46,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:38:46,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:38:46,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:38:46,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:38:46,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:38:46,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:38:46,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:38:46,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:38:46,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:38:46,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:38:46,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:38:46,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:38:46,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:38:46,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:38:46,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:38:46,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:38:46,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:38:46,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:38:46,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:38:46,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:38:46,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:38:46,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:38:46,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:38:46,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:38:46,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:38:46,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:38:46,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:38:46,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:38:46,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:38:46,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:38:46,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:38:46,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:38:46,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:38:46,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:38:46,435 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:38:46,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:38:46,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:38:46,446 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:38:46,446 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:38:46,446 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:38:46,447 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:38:46,447 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:38:46,447 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:38:46,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:38:46,448 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:38:46,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:38:46,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:38:46,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:38:46,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:38:46,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:38:46,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:38:46,450 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:38:46,451 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:38:46,451 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:38:46,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:38:46,451 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:38:46,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:38:46,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:38:46,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:38:46,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:38:46,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:38:46,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:46,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:38:46,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:38:46,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:38:46,454 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:38:46,454 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:38:46,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:38:46,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:38:46,455 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/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/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 -> 91d2600fad1210650d8ad3da481cdcc11b280095 [2019-11-26 02:38:46,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:38:46,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:38:46,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:38:46,778 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:38:46,778 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:38:46,779 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/../../sv-benchmarks/c/recursive/Addition01-2.c [2019-11-26 02:38:46,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data/7ec1b0ba4/71e1b6ff6ca34a828a6850c92f09fe4d/FLAGbf3b26dcc [2019-11-26 02:38:47,229 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:38:47,230 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/sv-benchmarks/c/recursive/Addition01-2.c [2019-11-26 02:38:47,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data/7ec1b0ba4/71e1b6ff6ca34a828a6850c92f09fe4d/FLAGbf3b26dcc [2019-11-26 02:38:47,257 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/data/7ec1b0ba4/71e1b6ff6ca34a828a6850c92f09fe4d [2019-11-26 02:38:47,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:38:47,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:38:47,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:47,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:38:47,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:38:47,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcbaa2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47, skipping insertion in model container [2019-11-26 02:38:47,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:38:47,299 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:38:47,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:47,492 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:38:47,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:47,524 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:38:47,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47 WrapperNode [2019-11-26 02:38:47,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:47,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:47,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:38:47,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:38:47,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:47,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:38:47,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:38:47,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:38:47,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:38:47,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:38:47,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:38:47,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:38:47,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/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 [2019-11-26 02:38:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:38:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:38:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2019-11-26 02:38:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2019-11-26 02:38:47,936 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:38:47,936 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:38:47,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:47 BoogieIcfgContainer [2019-11-26 02:38:47,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:38:47,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:38:47,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:38:47,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:38:47,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:38:47" (1/3) ... [2019-11-26 02:38:47,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bef67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:47, skipping insertion in model container [2019-11-26 02:38:47,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47" (2/3) ... [2019-11-26 02:38:47,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bef67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:47, skipping insertion in model container [2019-11-26 02:38:47,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:47" (3/3) ... [2019-11-26 02:38:47,945 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2019-11-26 02:38:47,965 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:38:47,970 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:38:47,993 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:38:48,023 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:38:48,024 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:38:48,024 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:38:48,024 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:38:48,024 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:38:48,024 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:38:48,025 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:38:48,025 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:38:48,042 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-26 02:38:48,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:38:48,046 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:48,048 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:48,048 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:48,052 INFO L82 PathProgramCache]: Analyzing trace with hash -2068195676, now seen corresponding path program 1 times [2019-11-26 02:38:48,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:48,060 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [659727072] [2019-11-26 02:38:48,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/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 [2019-11-26 02:38:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:48,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-26 02:38:48,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:48,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:48,247 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:48,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:48,474 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [659727072] [2019-11-26 02:38:48,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:48,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-26 02:38:48,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838790005] [2019-11-26 02:38:48,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-26 02:38:48,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:48,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-26 02:38:48,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:38:48,490 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 10 states. [2019-11-26 02:38:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:48,772 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-26 02:38:48,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:38:48,774 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-11-26 02:38:48,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:48,783 INFO L225 Difference]: With dead ends: 36 [2019-11-26 02:38:48,783 INFO L226 Difference]: Without dead ends: 20 [2019-11-26 02:38:48,785 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:38:48,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-26 02:38:48,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-26 02:38:48,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-26 02:38:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2019-11-26 02:38:48,818 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 11 [2019-11-26 02:38:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:48,819 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-11-26 02:38:48,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-26 02:38:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2019-11-26 02:38:48,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:38:48,821 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:48,821 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:49,023 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:49,023 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:49,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:49,023 INFO L82 PathProgramCache]: Analyzing trace with hash 800728349, now seen corresponding path program 1 times [2019-11-26 02:38:49,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:49,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1802655260] [2019-11-26 02:38:49,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/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 [2019-11-26 02:38:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:49,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-26 02:38:49,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:49,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:49,117 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:49,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1802655260] [2019-11-26 02:38:49,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:49,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-26 02:38:49,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010139285] [2019-11-26 02:38:49,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-26 02:38:49,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:49,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-26 02:38:49,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:38:49,242 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand 9 states. [2019-11-26 02:38:49,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:49,416 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-11-26 02:38:49,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:38:49,417 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2019-11-26 02:38:49,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:49,418 INFO L225 Difference]: With dead ends: 31 [2019-11-26 02:38:49,418 INFO L226 Difference]: Without dead ends: 17 [2019-11-26 02:38:49,420 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:38:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-26 02:38:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-26 02:38:49,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-26 02:38:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-26 02:38:49,426 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2019-11-26 02:38:49,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:49,427 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-26 02:38:49,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-26 02:38:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-26 02:38:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-26 02:38:49,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:49,434 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:49,643 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:49,643 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:49,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1352688745, now seen corresponding path program 1 times [2019-11-26 02:38:49,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:49,644 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [491268593] [2019-11-26 02:38:49,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:49,714 WARN L253 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-26 02:38:49,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:38:49,871 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:50,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:38:50,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:38:50,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [491268593] [2019-11-26 02:38:50,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429079801] [2019-11-26 02:38:50,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:38:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:50,424 WARN L253 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-26 02:38:50,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:50,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:38:50,628 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:50,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:38:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:38:50,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-26 02:38:50,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 10, 9] total 18 [2019-11-26 02:38:50,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526387565] [2019-11-26 02:38:50,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-26 02:38:50,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:50,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-26 02:38:50,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2019-11-26 02:38:50,910 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 18 states. [2019-11-26 02:38:51,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:51,554 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2019-11-26 02:38:51,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-26 02:38:51,555 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2019-11-26 02:38:51,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:51,555 INFO L225 Difference]: With dead ends: 22 [2019-11-26 02:38:51,555 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:38:51,556 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2019-11-26 02:38:51,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:38:51,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:38:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:38:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:38:51,557 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-11-26 02:38:51,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:51,557 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:38:51,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-26 02:38:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:38:51,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:38:51,958 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:38:51,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:38:52,061 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:38:52,061 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:38:52,061 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:38:52,061 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 32) no Hoare annotation was computed. [2019-11-26 02:38:52,062 INFO L447 ceAbstractionStarter]: At program point L26(lines 26 45) the Hoare annotation is: true [2019-11-26 02:38:52,062 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-11-26 02:38:52,062 INFO L444 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-26 02:38:52,062 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-26 02:38:52,062 INFO L440 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (and (not (bvsgt ULTIMATE.start_main_~n~0 (_ bv1073741823 32))) (not (bvsgt ULTIMATE.start_main_~m~0 (_ bv1073741823 32))) (not (bvslt ULTIMATE.start_main_~m~0 (_ bv0 32))) (not (bvslt ULTIMATE.start_main_~n~0 (_ bv0 32)))) [2019-11-26 02:38:52,062 INFO L444 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2019-11-26 02:38:52,063 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2019-11-26 02:38:52,063 INFO L444 ceAbstractionStarter]: For program point additionFINAL(lines 13 23) no Hoare annotation was computed. [2019-11-26 02:38:52,063 INFO L440 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: (and (not (bvsgt |addition_#in~n| (_ bv0 32))) (not (= (_ bv0 32) |addition_#in~n|)) (= addition_~m |addition_#in~m|) (= addition_~n |addition_#in~n|)) [2019-11-26 02:38:52,063 INFO L444 ceAbstractionStarter]: For program point L20(lines 20 22) no Hoare annotation was computed. [2019-11-26 02:38:52,063 INFO L444 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-11-26 02:38:52,063 INFO L440 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: (and (not (= addition_~n (_ bv0 32))) (= addition_~m |addition_#in~m|) (= addition_~n |addition_#in~n|)) [2019-11-26 02:38:52,063 INFO L444 ceAbstractionStarter]: For program point L17(lines 17 19) no Hoare annotation was computed. [2019-11-26 02:38:52,064 INFO L444 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-11-26 02:38:52,064 INFO L447 ceAbstractionStarter]: At program point additionENTRY(lines 13 23) the Hoare annotation is: true [2019-11-26 02:38:52,064 INFO L444 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2019-11-26 02:38:52,064 INFO L444 ceAbstractionStarter]: For program point additionEXIT(lines 13 23) no Hoare annotation was computed. [2019-11-26 02:38:52,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:38:52 BoogieIcfgContainer [2019-11-26 02:38:52,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:38:52,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:38:52,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:38:52,073 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:38:52,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:47" (3/4) ... [2019-11-26 02:38:52,076 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:38:52,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure addition [2019-11-26 02:38:52,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:38:52,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:38:52,150 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_823e8d47-c229-4eb3-b173-8b4279681fb9/bin/utaipan/witness.graphml [2019-11-26 02:38:52,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:38:52,152 INFO L168 Benchmark]: Toolchain (without parser) took 4890.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 960.4 MB in the beginning and 794.3 MB in the end (delta: 166.2 MB). Peak memory consumption was 244.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:52,152 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:52,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:52,153 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -124.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:52,154 INFO L168 Benchmark]: Boogie Preprocessor took 29.21 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:52,154 INFO L168 Benchmark]: RCFGBuilder took 298.56 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:52,155 INFO L168 Benchmark]: TraceAbstraction took 4133.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 801.3 MB in the end (delta: 251.1 MB). Peak memory consumption was 251.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:52,155 INFO L168 Benchmark]: Witness Printer took 77.82 ms. Allocated memory is still 1.1 GB. Free memory was 801.3 MB in the beginning and 794.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:52,157 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 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 84.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -124.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.21 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 298.56 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4133.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 801.3 MB in the end (delta: 251.1 MB). Peak memory consumption was 251.1 MB. Max. memory is 11.5 GB. * Witness Printer took 77.82 ms. Allocated memory is still 1.1 GB. Free memory was 801.3 MB in the beginning and 794.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 41 SDtfs, 72 SDslu, 133 SDs, 0 SdLazy, 266 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 77 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 14 NumberOfFragments, 45 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 9218 SizeOfPredicates, 24 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 6/16 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...