./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/sum_array-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_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/sum_array-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/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 cf04eabdc5b4c50cc28558a524d03f68fbf75e54 ...................................................................................................................................................................................................................................................................................... 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 08:52:24,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:24,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:24,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:24,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:24,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:24,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:24,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:24,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:24,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:24,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:24,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:24,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:24,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:24,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:24,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:24,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:24,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:24,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:24,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:24,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:24,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:24,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:24,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:24,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:24,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:24,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:24,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:24,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:24,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:24,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:24,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:24,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:24,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:24,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:24,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:24,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:24,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:24,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:24,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:24,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:24,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:52:24,103 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:24,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:24,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:24,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:24,104 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:24,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:24,105 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:24,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:24,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:24,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:24,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:52:24,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:24,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:52:24,106 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:24,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:24,106 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:24,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:52:24,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:24,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:24,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:24,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:24,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:24,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:24,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:24,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:52:24,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:24,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:52:24,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:52:24,109 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_ee6caa97-1118-4cea-90aa-48f8fce45f19/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 -> cf04eabdc5b4c50cc28558a524d03f68fbf75e54 [2019-11-25 08:52:24,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:24,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:24,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:24,275 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:24,276 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:24,277 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/../../sv-benchmarks/c/loops/sum_array-1.c [2019-11-25 08:52:24,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/data/71fccdd61/9136e877f1eb442c8a040d32b95b0f77/FLAG2332d6f6a [2019-11-25 08:52:24,717 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:24,717 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/sv-benchmarks/c/loops/sum_array-1.c [2019-11-25 08:52:24,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/data/71fccdd61/9136e877f1eb442c8a040d32b95b0f77/FLAG2332d6f6a [2019-11-25 08:52:25,094 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/data/71fccdd61/9136e877f1eb442c8a040d32b95b0f77 [2019-11-25 08:52:25,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:25,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:25,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:25,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:25,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:25,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@551f2460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25, skipping insertion in model container [2019-11-25 08:52:25,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:25,134 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:25,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:25,326 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:25,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:25,426 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:25,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25 WrapperNode [2019-11-25 08:52:25,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:25,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:25,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:25,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:25,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:25,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:25,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:25,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:25,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... [2019-11-25 08:52:25,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:25,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:25,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:25,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:25,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/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 08:52:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:52:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:25,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:52:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:52:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:52:25,835 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:25,835 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-25 08:52:25,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:25 BoogieIcfgContainer [2019-11-25 08:52:25,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:25,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:25,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:25,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:25,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:25" (1/3) ... [2019-11-25 08:52:25,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7645b3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:25, skipping insertion in model container [2019-11-25 08:52:25,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:25" (2/3) ... [2019-11-25 08:52:25,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7645b3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:25, skipping insertion in model container [2019-11-25 08:52:25,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:25" (3/3) ... [2019-11-25 08:52:25,852 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_array-1.c [2019-11-25 08:52:25,861 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:25,866 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:52:25,876 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:52:25,897 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:25,897 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:25,897 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:25,897 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:25,897 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:25,898 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:25,898 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:25,898 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-25 08:52:25,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:52:25,918 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:25,919 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:25,920 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:25,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:25,925 INFO L82 PathProgramCache]: Analyzing trace with hash -779788197, now seen corresponding path program 1 times [2019-11-25 08:52:25,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:25,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953441290] [2019-11-25 08:52:25,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:26,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953441290] [2019-11-25 08:52:26,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:26,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:52:26,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317487923] [2019-11-25 08:52:26,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:52:26,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:26,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:52:26,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:26,197 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2019-11-25 08:52:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:26,360 INFO L93 Difference]: Finished difference Result 60 states and 88 transitions. [2019-11-25 08:52:26,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:52:26,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-25 08:52:26,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:26,374 INFO L225 Difference]: With dead ends: 60 [2019-11-25 08:52:26,374 INFO L226 Difference]: Without dead ends: 29 [2019-11-25 08:52:26,377 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:26,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-25 08:52:26,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2019-11-25 08:52:26,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-25 08:52:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-11-25 08:52:26,412 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 11 [2019-11-25 08:52:26,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:26,412 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-25 08:52:26,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:52:26,412 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2019-11-25 08:52:26,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:52:26,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:26,413 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:26,414 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:26,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:26,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1602849365, now seen corresponding path program 1 times [2019-11-25 08:52:26,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:26,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860994944] [2019-11-25 08:52:26,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:26,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:26,656 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:52:26,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:26 BoogieIcfgContainer [2019-11-25 08:52:26,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:26,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:26,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:26,685 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:26,685 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:25" (3/4) ... [2019-11-25 08:52:26,687 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:52:26,732 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ee6caa97-1118-4cea-90aa-48f8fce45f19/bin/uautomizer/witness.graphml [2019-11-25 08:52:26,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:26,734 INFO L168 Benchmark]: Toolchain (without parser) took 1635.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -100.6 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:26,735 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:26,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:26,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.81 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. [2019-11-25 08:52:26,736 INFO L168 Benchmark]: Boogie Preprocessor took 24.85 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 08:52:26,737 INFO L168 Benchmark]: RCFGBuilder took 334.50 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:26,738 INFO L168 Benchmark]: TraceAbstraction took 846.78 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: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:26,738 INFO L168 Benchmark]: Witness Printer took 47.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:26,741 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 328.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.81 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. * Boogie Preprocessor took 24.85 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 334.50 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 846.78 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: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. * Witness Printer took 47.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] unsigned int M = __VERIFIER_nondet_uint(); [L15] int A[M], B[M], C[M]; [L16] unsigned int i; [L18] i=0 [L18] COND TRUE i