./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res1f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/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 5db13eecb169805db50191c4d332f3f213c27dc6 ............................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 07:38:48,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:38:48,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:38:48,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:38:48,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:38:48,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:38:48,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:38:48,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:38:48,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:38:48,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:38:48,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:38:48,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:38:48,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:38:48,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:38:48,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:38:48,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:38:48,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:38:48,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:38:48,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:38:48,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:38:48,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:38:48,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:38:48,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:38:48,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:38:48,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:38:48,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:38:48,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:38:48,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:38:48,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:38:48,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:38:48,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:38:48,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:38:48,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:38:48,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:38:48,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:38:48,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:38:48,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:38:48,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:38:48,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:38:48,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:38:48,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:38:48,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 07:38:48,544 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:38:48,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:38:48,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:38:48,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:38:48,545 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:38:48,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:38:48,546 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:38:48,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:38:48,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:38:48,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:38:48,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:38:48,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:38:48,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:38:48,547 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:38:48,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:38:48,547 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:38:48,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:38:48,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:38:48,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:38:48,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:38:48,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:38:48,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:38:48,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:38:48,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:38:48,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:38:48,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:38:48,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:38:48,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:38:48,550 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_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/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 -> 5db13eecb169805db50191c4d332f3f213c27dc6 [2019-11-20 07:38:48,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:38:48,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:38:48,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:38:48,737 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:38:48,737 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:38:48,739 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/../../sv-benchmarks/c/array-fpi/res1f.c [2019-11-20 07:38:48,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/data/09f8c7489/eb581e4393c84e91bdaf3849a7286e83/FLAG990e21806 [2019-11-20 07:38:49,196 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:38:49,197 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/sv-benchmarks/c/array-fpi/res1f.c [2019-11-20 07:38:49,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/data/09f8c7489/eb581e4393c84e91bdaf3849a7286e83/FLAG990e21806 [2019-11-20 07:38:49,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/data/09f8c7489/eb581e4393c84e91bdaf3849a7286e83 [2019-11-20 07:38:49,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:38:49,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:38:49,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:38:49,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:38:49,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:38:49,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:49,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe72269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49, skipping insertion in model container [2019-11-20 07:38:49,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:49,639 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:38:49,658 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:38:49,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:38:49,930 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:38:49,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:38:49,984 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:38:49,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49 WrapperNode [2019-11-20 07:38:49,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:38:49,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:38:49,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:38:49,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:38:49,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:50,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:50,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:38:50,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:38:50,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:38:50,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:38:50,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:50,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:50,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:50,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:50,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:50,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:50,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... [2019-11-20 07:38:50,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:38:50,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:38:50,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:38:50,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:38:50,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/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 [2019-11-20 07:38:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 07:38:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 07:38:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 07:38:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:38:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:38:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 07:38:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 07:38:50,407 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:38:50,407 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-20 07:38:50,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:38:50 BoogieIcfgContainer [2019-11-20 07:38:50,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:38:50,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:38:50,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:38:50,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:38:50,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:38:49" (1/3) ... [2019-11-20 07:38:50,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ecf221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:38:50, skipping insertion in model container [2019-11-20 07:38:50,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:49" (2/3) ... [2019-11-20 07:38:50,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ecf221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:38:50, skipping insertion in model container [2019-11-20 07:38:50,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:38:50" (3/3) ... [2019-11-20 07:38:50,415 INFO L109 eAbstractionObserver]: Analyzing ICFG res1f.c [2019-11-20 07:38:50,423 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:38:50,428 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:38:50,438 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:38:50,458 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:38:50,458 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:38:50,458 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:38:50,458 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:38:50,458 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:38:50,459 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:38:50,459 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:38:50,459 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:38:50,472 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-20 07:38:50,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 07:38:50,477 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:38:50,477 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:38:50,478 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:38:50,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:38:50,483 INFO L82 PathProgramCache]: Analyzing trace with hash 920027386, now seen corresponding path program 1 times [2019-11-20 07:38:50,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:38:50,492 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758716921] [2019-11-20 07:38:50,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:38:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:38:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:38:50,643 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758716921] [2019-11-20 07:38:50,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:38:50,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 07:38:50,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013702856] [2019-11-20 07:38:50,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 07:38:50,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:38:50,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 07:38:50,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:38:50,664 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-11-20 07:38:50,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:38:50,679 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2019-11-20 07:38:50,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:38:50,680 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-20 07:38:50,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:38:50,687 INFO L225 Difference]: With dead ends: 39 [2019-11-20 07:38:50,687 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 07:38:50,690 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:38:50,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 07:38:50,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 07:38:50,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 07:38:50,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-20 07:38:50,719 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2019-11-20 07:38:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:38:50,719 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-20 07:38:50,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 07:38:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-20 07:38:50,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 07:38:50,720 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:38:50,720 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:38:50,720 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:38:50,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:38:50,721 INFO L82 PathProgramCache]: Analyzing trace with hash 232180998, now seen corresponding path program 1 times [2019-11-20 07:38:50,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:38:50,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739681477] [2019-11-20 07:38:50,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:38:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:38:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:38:50,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739681477] [2019-11-20 07:38:50,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:38:50,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:38:50,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26994087] [2019-11-20 07:38:50,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:38:50,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:38:50,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:38:50,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:38:50,827 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 4 states. [2019-11-20 07:38:50,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:38:50,912 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-11-20 07:38:50,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:38:50,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-20 07:38:50,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:38:50,914 INFO L225 Difference]: With dead ends: 25 [2019-11-20 07:38:50,914 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 07:38:50,915 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 [2019-11-20 07:38:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 07:38:50,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-20 07:38:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-20 07:38:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-20 07:38:50,919 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2019-11-20 07:38:50,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:38:50,920 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-20 07:38:50,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:38:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-20 07:38:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 07:38:50,921 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:38:50,921 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:38:50,921 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:38:50,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:38:50,921 INFO L82 PathProgramCache]: Analyzing trace with hash -159126488, now seen corresponding path program 1 times [2019-11-20 07:38:50,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:38:50,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452148277] [2019-11-20 07:38:50,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:38:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:38:50,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 07:38:50,966 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452148277] [2019-11-20 07:38:50,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:38:50,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:38:50,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077739991] [2019-11-20 07:38:50,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:38:50,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:38:50,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:38:50,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:38:50,968 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2019-11-20 07:38:51,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:38:51,037 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-20 07:38:51,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:38:51,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-20 07:38:51,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:38:51,038 INFO L225 Difference]: With dead ends: 39 [2019-11-20 07:38:51,038 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 07:38:51,039 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:38:51,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 07:38:51,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-20 07:38:51,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 07:38:51,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-20 07:38:51,043 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2019-11-20 07:38:51,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:38:51,044 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-20 07:38:51,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:38:51,044 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-20 07:38:51,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 07:38:51,045 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:38:51,045 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:38:51,045 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:38:51,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:38:51,045 INFO L82 PathProgramCache]: Analyzing trace with hash -620162550, now seen corresponding path program 1 times [2019-11-20 07:38:51,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:38:51,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556012110] [2019-11-20 07:38:51,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:38:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:38:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:38:51,097 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556012110] [2019-11-20 07:38:51,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:38:51,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:38:51,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070807637] [2019-11-20 07:38:51,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:38:51,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:38:51,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:38:51,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:38:51,099 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-11-20 07:38:51,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:38:51,174 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-20 07:38:51,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:38:51,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-20 07:38:51,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:38:51,175 INFO L225 Difference]: With dead ends: 39 [2019-11-20 07:38:51,175 INFO L226 Difference]: Without dead ends: 26 [2019-11-20 07:38:51,176 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:38:51,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-20 07:38:51,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2019-11-20 07:38:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 07:38:51,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-20 07:38:51,182 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 17 [2019-11-20 07:38:51,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:38:51,182 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-20 07:38:51,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:38:51,183 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-20 07:38:51,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 07:38:51,184 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:38:51,184 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:38:51,185 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:38:51,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:38:51,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1949747954, now seen corresponding path program 1 times [2019-11-20 07:38:51,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:38:51,185 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309167957] [2019-11-20 07:38:51,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:38:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:38:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:38:51,338 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:38:51,338 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 07:38:51,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:38:51 BoogieIcfgContainer [2019-11-20 07:38:51,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:38:51,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:38:51,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:38:51,377 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:38:51,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:38:50" (3/4) ... [2019-11-20 07:38:51,379 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 07:38:51,432 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6c24e3b4-f4f2-4bc7-8574-a088c40cffb2/bin/uautomizer/witness.graphml [2019-11-20 07:38:51,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:38:51,435 INFO L168 Benchmark]: Toolchain (without parser) took 1818.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -88.4 MB). Peak memory consumption was 54.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:38:51,438 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:38:51,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-20 07:38:51,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.72 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. [2019-11-20 07:38:51,440 INFO L168 Benchmark]: Boogie Preprocessor took 45.73 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. [2019-11-20 07:38:51,440 INFO L168 Benchmark]: RCFGBuilder took 323.01 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:38:51,441 INFO L168 Benchmark]: TraceAbstraction took 966.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:38:51,441 INFO L168 Benchmark]: Witness Printer took 56.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 07:38:51,446 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.72 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 45.73 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. * RCFGBuilder took 323.01 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 966.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 11.5 GB. * Witness Printer took 56.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 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: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L25] int *b = malloc(sizeof(int)*N); [L27] sum[0] = 1 [L28] i=0 VAL [N=1] [L28] COND TRUE i