./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-1.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_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 37028c56b7915050ee6a79b5e737b9e44bf7c3db .............................................................................................................................................................................................................................. 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 0.1.24-6b5699a [2019-11-25 08:52:27,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:27,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:27,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:27,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:27,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:27,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:27,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:27,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:27,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:27,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:27,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:27,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:27,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:27,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:27,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:27,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:27,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:27,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:27,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:27,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:27,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:27,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:27,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:27,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:27,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:27,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:27,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:27,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:27,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:27,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:27,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:27,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:27,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:27,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:27,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:27,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:27,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:27,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:27,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:27,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:27,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:52:27,059 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:27,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:27,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:27,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:27,061 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:27,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:27,061 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:27,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:27,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:27,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:27,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:52:27,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:27,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:52:27,062 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:27,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:27,063 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:27,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:52:27,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:27,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:27,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:27,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:27,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:27,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:27,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:27,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:52:27,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:27,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:52:27,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:52:27,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer 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 -> Automizer 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 -> 37028c56b7915050ee6a79b5e737b9e44bf7c3db [2019-11-25 08:52:27,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:27,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:27,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:27,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:27,210 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:27,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/../../sv-benchmarks/c/recursive/McCarthy91-1.c [2019-11-25 08:52:27,260 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/data/8742c2428/dfd1bd376fad4914aecf927b913174c7/FLAG04b8da78d [2019-11-25 08:52:27,659 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:27,660 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/sv-benchmarks/c/recursive/McCarthy91-1.c [2019-11-25 08:52:27,665 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/data/8742c2428/dfd1bd376fad4914aecf927b913174c7/FLAG04b8da78d [2019-11-25 08:52:28,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/data/8742c2428/dfd1bd376fad4914aecf927b913174c7 [2019-11-25 08:52:28,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:28,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:28,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:28,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:28,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:28,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b8f7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28, skipping insertion in model container [2019-11-25 08:52:28,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:28,128 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:28,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:28,328 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:28,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:28,434 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:28,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28 WrapperNode [2019-11-25 08:52:28,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:28,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:28,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:28,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:28,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:28,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:28,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:28,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:28,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:28,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:28,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:28,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:28,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/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 [2019-11-25 08:52:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2019-11-25 08:52:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2019-11-25 08:52:28,705 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:28,706 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-25 08:52:28,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:28 BoogieIcfgContainer [2019-11-25 08:52:28,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:28,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:28,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:28,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:28,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:28" (1/3) ... [2019-11-25 08:52:28,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917ddd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:28, skipping insertion in model container [2019-11-25 08:52:28,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (2/3) ... [2019-11-25 08:52:28,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917ddd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:28, skipping insertion in model container [2019-11-25 08:52:28,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:28" (3/3) ... [2019-11-25 08:52:28,714 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91-1.c [2019-11-25 08:52:28,723 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:28,728 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:52:28,738 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:52:28,758 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:28,759 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:28,759 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:28,759 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:28,759 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:28,759 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:28,760 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:28,760 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:28,777 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-25 08:52:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-25 08:52:28,782 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:28,783 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:28,783 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:28,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:28,788 INFO L82 PathProgramCache]: Analyzing trace with hash -417462297, now seen corresponding path program 1 times [2019-11-25 08:52:28,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:28,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376175173] [2019-11-25 08:52:28,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:28,940 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:28,941 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:52:28,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:28 BoogieIcfgContainer [2019-11-25 08:52:28,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:28,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:28,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:28,964 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:28,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:28" (3/4) ... [2019-11-25 08:52:28,966 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:52:28,996 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ac2c0107-adde-44ba-89c9-f51eac99b70b/bin/uautomizer/witness.graphml [2019-11-25 08:52:28,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:28,998 INFO L168 Benchmark]: Toolchain (without parser) took 901.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:28,999 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:29,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:29,000 INFO L168 Benchmark]: Boogie Preprocessor took 16.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:29,001 INFO L168 Benchmark]: RCFGBuilder took 223.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,001 INFO L168 Benchmark]: TraceAbstraction took 255.42 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,002 INFO L168 Benchmark]: Witness Printer took 33.32 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,005 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 336.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 223.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 255.42 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 33.32 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 30]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] CALL, EXPR f91(x) VAL [\old(x)=102] [L16] COND TRUE x > 100 [L17] return x -10; VAL [\old(x)=102, \result=92, x=102] [L26] RET, EXPR f91(x) [L26] int result = f91(x); [L27] COND FALSE !(result == 91 || x > 102 && result == x - 10) [L30] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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 DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...