./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/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 a06687718ac0cd281e66000f698ec14d3c3893e6 ........................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 22:13:03,204 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 22:13:03,205 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 22:13:03,211 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 22:13:03,211 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 22:13:03,212 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 22:13:03,213 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 22:13:03,214 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 22:13:03,215 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 22:13:03,216 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 22:13:03,216 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 22:13:03,216 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 22:13:03,217 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 22:13:03,217 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 22:13:03,218 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 22:13:03,218 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 22:13:03,219 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 22:13:03,220 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 22:13:03,221 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 22:13:03,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 22:13:03,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 22:13:03,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 22:13:03,224 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 22:13:03,224 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 22:13:03,224 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 22:13:03,224 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 22:13:03,225 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 22:13:03,225 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 22:13:03,225 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 22:13:03,226 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 22:13:03,226 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 22:13:03,226 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 22:13:03,226 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 22:13:03,226 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 22:13:03,227 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 22:13:03,227 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 22:13:03,227 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 22:13:03,237 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 22:13:03,237 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 22:13:03,238 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 22:13:03,238 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 22:13:03,238 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 22:13:03,239 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 22:13:03,239 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 22:13:03,239 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 22:13:03,239 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 22:13:03,239 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 22:13:03,239 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 22:13:03,240 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 22:13:03,240 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 22:13:03,240 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 22:13:03,240 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 22:13:03,240 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 22:13:03,240 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 22:13:03,240 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 22:13:03,241 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 22:13:03,241 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 22:13:03,241 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 22:13:03,241 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 22:13:03,241 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 22:13:03,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 22:13:03,242 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 22:13:03,242 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 22:13:03,242 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 22:13:03,242 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 22:13:03,242 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 22:13:03,242 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 22:13:03,243 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/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 -> a06687718ac0cd281e66000f698ec14d3c3893e6 [2018-12-08 22:13:03,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 22:13:03,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 22:13:03,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 22:13:03,276 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 22:13:03,277 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 22:13:03,277 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-12-08 22:13:03,311 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/data/4adbb40bf/295175886371483a88ce41d5cd3a05ea/FLAG8db7d4971 [2018-12-08 22:13:03,711 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 22:13:03,711 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-12-08 22:13:03,714 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/data/4adbb40bf/295175886371483a88ce41d5cd3a05ea/FLAG8db7d4971 [2018-12-08 22:13:03,723 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/data/4adbb40bf/295175886371483a88ce41d5cd3a05ea [2018-12-08 22:13:03,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 22:13:03,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 22:13:03,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 22:13:03,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 22:13:03,728 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 22:13:03,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1782ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03, skipping insertion in model container [2018-12-08 22:13:03,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 22:13:03,744 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 22:13:03,834 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:13:03,836 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 22:13:03,850 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:13:03,861 INFO L195 MainTranslator]: Completed translation [2018-12-08 22:13:03,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03 WrapperNode [2018-12-08 22:13:03,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 22:13:03,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 22:13:03,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 22:13:03,862 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 22:13:03,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 22:13:03,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 22:13:03,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 22:13:03,876 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 22:13:03,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... [2018-12-08 22:13:03,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 22:13:03,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 22:13:03,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 22:13:03,933 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 22:13:03,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/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 [2018-12-08 22:13:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 22:13:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 22:13:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 22:13:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 22:13:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 22:13:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 22:13:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 22:13:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 22:13:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 22:13:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 22:13:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 22:13:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 22:13:04,091 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 22:13:04,091 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 22:13:04,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:13:04 BoogieIcfgContainer [2018-12-08 22:13:04,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 22:13:04,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 22:13:04,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 22:13:04,093 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 22:13:04,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 10:13:03" (1/3) ... [2018-12-08 22:13:04,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d48fd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:13:04, skipping insertion in model container [2018-12-08 22:13:04,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:13:03" (2/3) ... [2018-12-08 22:13:04,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d48fd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:13:04, skipping insertion in model container [2018-12-08 22:13:04,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:13:04" (3/3) ... [2018-12-08 22:13:04,095 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix_false-unreach-call_true-termination.i [2018-12-08 22:13:04,101 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 22:13:04,105 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 22:13:04,114 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 22:13:04,130 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 22:13:04,130 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 22:13:04,130 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 22:13:04,130 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 22:13:04,130 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 22:13:04,130 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 22:13:04,131 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 22:13:04,131 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 22:13:04,131 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 22:13:04,140 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-08 22:13:04,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 22:13:04,145 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:04,145 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:13:04,146 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:04,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:04,150 INFO L82 PathProgramCache]: Analyzing trace with hash -2125374060, now seen corresponding path program 1 times [2018-12-08 22:13:04,151 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 22:13:04,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 22:13:04,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:04,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:04,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:04,197 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-08 22:13:04,197 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-08 22:13:04,197 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-08 22:13:04,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:04,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:13:04,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:13:04,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:13:04,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 22:13:04,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 22:13:04,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 22:13:04,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 22:13:04,259 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2018-12-08 22:13:04,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:04,272 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2018-12-08 22:13:04,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 22:13:04,272 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-12-08 22:13:04,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:04,277 INFO L225 Difference]: With dead ends: 52 [2018-12-08 22:13:04,277 INFO L226 Difference]: Without dead ends: 24 [2018-12-08 22:13:04,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 22:13:04,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-08 22:13:04,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-12-08 22:13:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-08 22:13:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-12-08 22:13:04,300 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 14 [2018-12-08 22:13:04,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:04,300 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-12-08 22:13:04,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 22:13:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-12-08 22:13:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 22:13:04,300 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:04,300 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:13:04,301 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:04,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:04,301 INFO L82 PathProgramCache]: Analyzing trace with hash 739661195, now seen corresponding path program 1 times [2018-12-08 22:13:04,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 22:13:04,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 22:13:04,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:04,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:04,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:04,306 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-08 22:13:04,306 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-08 22:13:04,306 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-08 22:13:04,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:04,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:13:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:13:04,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:13:04,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 22:13:04,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 22:13:04,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 22:13:04,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:13:04,373 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 5 states. [2018-12-08 22:13:04,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:04,416 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2018-12-08 22:13:04,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 22:13:04,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-12-08 22:13:04,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:04,418 INFO L225 Difference]: With dead ends: 49 [2018-12-08 22:13:04,418 INFO L226 Difference]: Without dead ends: 35 [2018-12-08 22:13:04,418 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:13:04,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-08 22:13:04,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 25. [2018-12-08 22:13:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-08 22:13:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2018-12-08 22:13:04,424 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 14 [2018-12-08 22:13:04,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:04,424 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2018-12-08 22:13:04,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 22:13:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-12-08 22:13:04,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 22:13:04,424 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:04,425 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:13:04,425 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:04,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:04,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1656958391, now seen corresponding path program 1 times [2018-12-08 22:13:04,425 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 22:13:04,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 22:13:04,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:04,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:04,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:04,429 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-08 22:13:04,429 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-08 22:13:04,429 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-08 22:13:04,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:04,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:13:04,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:13:04,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:13:04,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 22:13:04,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 22:13:04,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 22:13:04,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:13:04,485 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 5 states. [2018-12-08 22:13:04,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:04,519 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2018-12-08 22:13:04,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 22:13:04,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-12-08 22:13:04,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:04,520 INFO L225 Difference]: With dead ends: 57 [2018-12-08 22:13:04,520 INFO L226 Difference]: Without dead ends: 32 [2018-12-08 22:13:04,521 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:13:04,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-08 22:13:04,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2018-12-08 22:13:04,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-08 22:13:04,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2018-12-08 22:13:04,524 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 17 [2018-12-08 22:13:04,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:04,524 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2018-12-08 22:13:04,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 22:13:04,524 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-12-08 22:13:04,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 22:13:04,524 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:04,524 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:13:04,524 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:04,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:04,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1471852900, now seen corresponding path program 1 times [2018-12-08 22:13:04,525 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 22:13:04,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 22:13:04,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:04,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:04,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:04,530 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-08 22:13:04,530 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-08 22:13:04,530 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-08 22:13:04,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 22:13:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 22:13:04,606 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 22:13:04,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 10:13:04 BoogieIcfgContainer [2018-12-08 22:13:04,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 22:13:04,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 22:13:04,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 22:13:04,625 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 22:13:04,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:13:04" (3/4) ... [2018-12-08 22:13:04,627 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 22:13:04,655 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9a45b768-e0e9-46fa-8abd-edc229f89ac2/bin-2019/uautomizer/witness.graphml [2018-12-08 22:13:04,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 22:13:04,655 INFO L168 Benchmark]: Toolchain (without parser) took 930.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 962.4 MB in the beginning and 1.0 GB in the end (delta: -59.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:04,656 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:13:04,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.54 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:04,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.83 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:13:04,657 INFO L168 Benchmark]: Boogie Preprocessor took 57.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:04,657 INFO L168 Benchmark]: RCFGBuilder took 157.98 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:04,658 INFO L168 Benchmark]: TraceAbstraction took 532.95 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: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:04,658 INFO L168 Benchmark]: Witness Printer took 30.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:13:04,659 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.54 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.83 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 157.98 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 532.95 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: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. * Witness Printer took 30.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L15] unsigned int N_COL=__VERIFIER_nondet_uint(); [L16] unsigned int j,k; [L17] int matriz[N_COL][N_LIN], maior; [L19] maior = __VERIFIER_nondet_int() [L20] j=0 VAL [j=0, maior=-2147483058, matriz={6:0}, N_COL=1, N_LIN=1] [L20] COND TRUE jmaior [L26] EXPR matriz[j][k] [L26] maior = matriz[j][k] [L21] k++ VAL [j=0, k=1, maior=-2147483057, matriz={6:0}, N_COL=1, N_LIN=1] [L21] COND FALSE !(k