./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test13_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test13_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22749f0c684d9d72525f8f3d1311c52d10bd60f7 ...................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:30:41,745 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:30:41,746 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:30:41,752 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:30:41,752 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:30:41,753 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:30:41,754 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:30:41,754 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:30:41,755 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:30:41,756 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:30:41,756 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:30:41,756 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:30:41,757 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:30:41,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:30:41,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:30:41,758 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:30:41,759 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:30:41,760 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:30:41,761 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:30:41,761 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:30:41,762 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:30:41,763 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:30:41,764 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:30:41,764 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:30:41,764 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:30:41,764 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:30:41,765 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:30:41,765 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:30:41,766 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:30:41,766 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:30:41,767 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:30:41,767 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:30:41,767 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:30:41,767 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:30:41,768 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:30:41,768 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:30:41,768 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:30:41,775 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:30:41,776 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:30:41,776 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:30:41,776 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:30:41,776 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:30:41,776 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:30:41,777 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:30:41,777 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:30:41,777 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:30:41,777 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:30:41,777 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:30:41,777 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:30:41,777 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:30:41,778 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:30:41,778 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:30:41,778 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:30:41,778 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:30:41,778 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:30:41,778 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:30:41,778 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:30:41,779 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:30:41,779 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:30:41,779 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:30:41,779 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:30:41,779 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:30:41,779 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:30:41,779 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:30:41,779 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:30:41,780 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:30:41,780 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:30:41,780 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:30:41,780 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:30:41,780 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:30:41,780 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:30:41,780 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:30:41,780 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:30:41,781 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22749f0c684d9d72525f8f3d1311c52d10bd60f7 [2018-12-09 19:30:41,797 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:30:41,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:30:41,806 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:30:41,807 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:30:41,807 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:30:41,807 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test13_true-unreach-call_true-termination.c [2018-12-09 19:30:41,842 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/data/061a8cdac/5dbdd3aedcfb4003adbc9b0edb2bd250/FLAG505a02977 [2018-12-09 19:30:42,191 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:30:42,191 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/sv-benchmarks/c/ldv-regression/test13_true-unreach-call_true-termination.c [2018-12-09 19:30:42,195 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/data/061a8cdac/5dbdd3aedcfb4003adbc9b0edb2bd250/FLAG505a02977 [2018-12-09 19:30:42,570 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/data/061a8cdac/5dbdd3aedcfb4003adbc9b0edb2bd250 [2018-12-09 19:30:42,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:30:42,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:30:42,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:30:42,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:30:42,576 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:30:42,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e1e261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42, skipping insertion in model container [2018-12-09 19:30:42,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:30:42,596 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:30:42,678 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:30:42,682 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:30:42,689 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:30:42,703 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:30:42,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42 WrapperNode [2018-12-09 19:30:42,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:30:42,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:30:42,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:30:42,704 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:30:42,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:30:42,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:30:42,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:30:42,717 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:30:42,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... [2018-12-09 19:30:42,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:30:42,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:30:42,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:30:42,729 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:30:42,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:30:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:30:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:30:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:30:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:30:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:30:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:30:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:30:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 19:30:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure check [2018-12-09 19:30:42,790 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2018-12-09 19:30:42,888 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:30:42,888 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 19:30:42,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:42 BoogieIcfgContainer [2018-12-09 19:30:42,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:30:42,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:30:42,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:30:42,891 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:30:42,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:30:42" (1/3) ... [2018-12-09 19:30:42,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360a8ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:30:42, skipping insertion in model container [2018-12-09 19:30:42,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:42" (2/3) ... [2018-12-09 19:30:42,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360a8ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:30:42, skipping insertion in model container [2018-12-09 19:30:42,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:42" (3/3) ... [2018-12-09 19:30:42,893 INFO L112 eAbstractionObserver]: Analyzing ICFG test13_true-unreach-call_true-termination.c [2018-12-09 19:30:42,899 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:30:42,903 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:30:42,913 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:30:42,931 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:30:42,931 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:30:42,932 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:30:42,932 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:30:42,932 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:30:42,932 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:30:42,932 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:30:42,932 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:30:42,942 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-09 19:30:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:30:42,945 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:30:42,946 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:30:42,947 INFO L423 AbstractCegarLoop]: === Iteration 1 === [checkErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:30:42,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:30:42,951 INFO L82 PathProgramCache]: Analyzing trace with hash 562540648, now seen corresponding path program 1 times [2018-12-09 19:30:42,952 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:30:42,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:42,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:30:42,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:42,983 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:30:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:30:43,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:30:43,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:30:43,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:30:43,071 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:30:43,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:30:43,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:30:43,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:30:43,083 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-12-09 19:30:43,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:30:43,131 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-12-09 19:30:43,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:30:43,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-09 19:30:43,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:30:43,136 INFO L225 Difference]: With dead ends: 24 [2018-12-09 19:30:43,136 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:30:43,138 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:30:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:30:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:30:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:30:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:30:43,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-12-09 19:30:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:30:43,153 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:30:43,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:30:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:30:43,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:30:43,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:30:43,182 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:30:43,182 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:30:43,182 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:30:43,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:30:43,183 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pa~0.offset |~#a~0.offset|) (= |~#a~0.base| ~pa~0.base)) [2018-12-09 19:30:43,183 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:30:43,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:30:43,183 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 17 20) the Hoare annotation is: true [2018-12-09 19:30:43,183 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 17 20) no Hoare annotation was computed. [2018-12-09 19:30:43,183 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 17 20) no Hoare annotation was computed. [2018-12-09 19:30:43,183 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-12-09 19:30:43,183 INFO L451 ceAbstractionStarter]: At program point checkENTRY(lines 4 12) the Hoare annotation is: true [2018-12-09 19:30:43,183 INFO L448 ceAbstractionStarter]: For program point checkErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-09 19:30:43,183 INFO L448 ceAbstractionStarter]: For program point checkFINAL(lines 4 12) no Hoare annotation was computed. [2018-12-09 19:30:43,183 INFO L444 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= |check_#in~a.offset| |check_#in~b.offset|)) (not (= |check_#in~b.base| |check_#in~a.base|)) (not (= |~#a~0.base| ~pa~0.base)) (not (= |~#a~0.offset| ~pa~0.offset))) [2018-12-09 19:30:43,184 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-12-09 19:30:43,184 INFO L448 ceAbstractionStarter]: For program point checkEXIT(lines 4 12) no Hoare annotation was computed. [2018-12-09 19:30:43,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:30:43 BoogieIcfgContainer [2018-12-09 19:30:43,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:30:43,193 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:30:43,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:30:43,193 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:30:43,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:42" (3/4) ... [2018-12-09 19:30:43,196 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:30:43,200 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:30:43,200 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:30:43,200 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2018-12-09 19:30:43,202 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-09 19:30:43,202 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 19:30:43,202 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:30:43,225 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8f35b48f-aec6-43a3-af9e-c74c2c2b6ec3/bin-2019/utaipan/witness.graphml [2018-12-09 19:30:43,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:30:43,226 INFO L168 Benchmark]: Toolchain (without parser) took 653.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:43,227 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:30:43,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.63 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:43,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.39 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:30:43,228 INFO L168 Benchmark]: Boogie Preprocessor took 11.53 ms. Allocated memory is still 1.0 GB. Free memory was 944.3 MB in the beginning and 941.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:43,229 INFO L168 Benchmark]: RCFGBuilder took 159.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:43,229 INFO L168 Benchmark]: TraceAbstraction took 303.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:43,229 INFO L168 Benchmark]: Witness Printer took 32.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:43,231 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 129.63 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.39 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.53 ms. Allocated memory is still 1.0 GB. Free memory was 944.3 MB in the beginning and 941.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 159.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 303.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * Witness Printer took 32.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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: 4]: Loop Invariant Derived loop invariant: ((!(a == b) || !(b == a)) || !(a == pa)) || !(a == pa) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 13 SDslu, 20 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 28 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 44 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...