./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test30_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test30_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/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 dbf4229fc71e086a20df7dc549a8cc43d35a83d5 ............................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:08:08,614 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:08:08,615 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:08:08,622 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:08:08,622 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:08:08,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:08:08,623 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:08:08,625 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:08:08,626 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:08:08,626 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:08:08,627 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:08:08,627 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:08:08,628 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:08:08,628 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:08:08,629 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:08:08,630 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:08:08,630 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:08:08,632 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:08:08,633 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:08:08,634 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:08:08,635 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:08:08,636 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:08:08,637 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:08:08,638 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:08:08,638 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:08:08,638 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:08:08,639 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:08:08,640 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:08:08,640 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:08:08,641 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:08:08,641 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:08:08,642 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:08:08,642 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:08:08,642 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:08:08,643 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:08:08,643 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:08:08,644 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 12:08:08,654 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:08:08,654 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:08:08,655 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:08:08,655 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:08:08,655 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:08:08,655 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:08:08,655 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:08:08,656 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:08:08,656 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:08:08,656 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:08:08,656 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:08:08,656 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:08:08,657 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:08:08,657 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:08:08,657 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:08:08,657 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:08:08,657 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:08:08,657 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:08:08,657 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:08:08,658 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:08:08,658 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:08:08,658 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:08:08,658 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:08:08,658 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:08:08,658 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:08:08,658 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:08:08,659 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:08:08,659 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:08:08,659 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:08:08,659 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:08:08,659 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:08:08,659 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:08:08,659 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:08:08,660 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:08:08,660 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_a725601c-3172-4a23-a19b-363e159d8fa7/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 -> dbf4229fc71e086a20df7dc549a8cc43d35a83d5 [2018-11-10 12:08:08,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:08:08,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:08:08,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:08:08,695 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:08:08,695 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:08:08,696 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test30_false-unreach-call_true-termination.c [2018-11-10 12:08:08,732 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/data/7c6701647/50262532856b477abb4ec0cae9d89008/FLAG0fae21d6e [2018-11-10 12:08:09,040 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:08:09,040 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/sv-benchmarks/c/ldv-regression/test30_false-unreach-call_true-termination.c [2018-11-10 12:08:09,044 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/data/7c6701647/50262532856b477abb4ec0cae9d89008/FLAG0fae21d6e [2018-11-10 12:08:09,052 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/data/7c6701647/50262532856b477abb4ec0cae9d89008 [2018-11-10 12:08:09,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:08:09,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:08:09,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:08:09,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:08:09,059 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:08:09,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377d388a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09, skipping insertion in model container [2018-11-10 12:08:09,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:08:09,081 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:08:09,178 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:08:09,186 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:08:09,194 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:08:09,203 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:08:09,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09 WrapperNode [2018-11-10 12:08:09,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:08:09,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:08:09,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:08:09,204 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:08:09,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:08:09,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:08:09,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:08:09,237 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:08:09,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... [2018-11-10 12:08:09,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:08:09,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:08:09,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:08:09,257 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:08:09,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:08:09,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:08:09,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:08:09,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:08:09,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:08:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:08:09,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:08:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2018-11-10 12:08:09,337 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2018-11-10 12:08:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2018-11-10 12:08:09,337 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2018-11-10 12:08:09,552 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:08:09,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:08:09 BoogieIcfgContainer [2018-11-10 12:08:09,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:08:09,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:08:09,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:08:09,556 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:08:09,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:08:09" (1/3) ... [2018-11-10 12:08:09,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abd09b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:08:09, skipping insertion in model container [2018-11-10 12:08:09,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:08:09" (2/3) ... [2018-11-10 12:08:09,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abd09b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:08:09, skipping insertion in model container [2018-11-10 12:08:09,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:08:09" (3/3) ... [2018-11-10 12:08:09,559 INFO L112 eAbstractionObserver]: Analyzing ICFG test30_false-unreach-call_true-termination.c [2018-11-10 12:08:09,565 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:08:09,571 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:08:09,581 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:08:09,603 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:08:09,603 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:08:09,603 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:08:09,603 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:08:09,603 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:08:09,603 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:08:09,604 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:08:09,604 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:08:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-10 12:08:09,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 12:08:09,620 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:08:09,621 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:08:09,623 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:08:09,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:08:09,628 INFO L82 PathProgramCache]: Analyzing trace with hash -2098592588, now seen corresponding path program 1 times [2018-11-10 12:08:09,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:08:09,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:08:09,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:08:09,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:08:09,659 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:08:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:08:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:08:09,797 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:08:09,809 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:08:09,810 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:08:09,810 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:08:09,810 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:08:09,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:08:09 BoogieIcfgContainer [2018-11-10 12:08:09,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:08:09,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:08:09,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:08:09,828 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:08:09,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:08:09" (3/4) ... [2018-11-10 12:08:09,829 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 12:08:09,831 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:08:09,831 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:08:09,832 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:08:09,832 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:08:09,860 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a725601c-3172-4a23-a19b-363e159d8fa7/bin-2019/utaipan/witness.graphml [2018-11-10 12:08:09,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:08:09,861 INFO L168 Benchmark]: Toolchain (without parser) took 805.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:08:09,863 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:08:09,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.00 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:08:09,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.53 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:08:09,864 INFO L168 Benchmark]: Boogie Preprocessor took 19.48 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:08:09,864 INFO L168 Benchmark]: RCFGBuilder took 296.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:08:09,865 INFO L168 Benchmark]: TraceAbstraction took 273.74 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-11-10 12:08:09,865 INFO L168 Benchmark]: Witness Printer took 33.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:08:09,868 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.00 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.53 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.48 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 296.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 273.74 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Witness Printer took 33.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3] CALL int a = 1, b; [L3] RET int a = 1, b; [L3] RET int a = 1, b; [L3] RET int a = 1, b; [L3] RET int a = 1, b; [L5-L7] CALL struct dummy { int *a, *b; } global = {&a, &b}; [L5-L7] RET struct dummy { int *a, *b; } global = {&a, &b}; [L5-L7] RET struct dummy { int *a, *b; } global = {&a, &b}; [L5-L7] RET struct dummy { int *a, *b; } global = {&a, &b}; [L21] struct dummy *pd = &global; VAL [a={21:0}, b={11:0}, global={16:0}] [L23] CALL assign2(&pd->a, &pd->b) VAL [a={21:0}, b={11:0}, global={16:0}] [L16] CALL, EXPR \read(**pb) [L16] RET, EXPR \read(**pb) [L16] CALL, EXPR \read(**pb) [L16] RET, EXPR \read(**pb) [L16] CALL assign(*pb, *pb) VAL [a={21:0}, b={11:0}, global={16:0}] [L11] CALL, EXPR \read(*pb) [L11] RET, EXPR \read(*pb) [L11] CALL *pa = *pb [L11] RET *pa = *pb [L16] RET assign(*pb, *pb) VAL [a={21:0}, b={11:0}, global={16:0}] [L23] assign2(&pd->a, &pd->b) VAL [a={21:0}, b={11:0}, global={16:0}] [L25] CALL, EXPR \read(a) [L25] RET, EXPR \read(a) [L25] CALL, EXPR \read(b) [L25] RET, EXPR \read(b) [L25] COND TRUE a != b [L31] __VERIFIER_error() VAL [a={21:0}, b={11:0}, global={16:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...