./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/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_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/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 0.1.23-5842f4b [2018-11-18 09:01:00,984 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:01:00,985 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:01:00,992 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:01:00,992 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:01:00,993 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:01:00,993 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:01:00,995 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:01:00,996 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:01:00,996 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:01:00,997 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:01:00,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:01:00,998 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:01:00,999 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:01:00,999 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:01:01,000 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:01:01,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:01:01,001 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:01:01,003 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:01:01,004 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:01:01,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:01:01,005 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:01:01,006 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:01:01,006 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:01:01,006 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:01:01,007 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:01:01,007 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:01:01,008 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:01:01,008 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:01:01,009 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:01:01,009 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:01:01,010 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:01:01,010 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:01:01,010 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:01:01,011 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:01:01,011 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:01:01,011 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 09:01:01,018 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:01:01,018 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:01:01,019 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:01:01,019 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 09:01:01,019 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:01:01,020 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:01:01,020 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:01:01,020 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:01:01,020 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:01:01,020 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:01:01,020 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:01:01,020 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:01:01,020 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:01:01,021 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:01:01,021 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:01:01,021 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:01:01,021 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:01:01,021 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:01:01,021 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:01:01,021 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:01:01,022 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:01:01,022 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:01:01,022 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:01:01,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:01:01,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:01:01,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:01:01,022 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:01:01,023 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:01:01,023 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:01:01,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:01:01,023 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_8cfdeba4-b24d-4349-ba89-5787626d5ee1/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 [2018-11-18 09:01:01,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:01:01,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:01:01,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:01:01,060 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:01:01,061 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:01:01,061 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-11-18 09:01:01,106 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/data/90d9e12d8/da62cc3fb995496886be48db4bdff2a7/FLAG72ecc413d [2018-11-18 09:01:01,451 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:01:01,451 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-11-18 09:01:01,456 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/data/90d9e12d8/da62cc3fb995496886be48db4bdff2a7/FLAG72ecc413d [2018-11-18 09:01:01,871 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/data/90d9e12d8/da62cc3fb995496886be48db4bdff2a7 [2018-11-18 09:01:01,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:01:01,875 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:01:01,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:01:01,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:01:01,878 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:01:01,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:01:01" (1/1) ... [2018-11-18 09:01:01,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5639ae20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:01, skipping insertion in model container [2018-11-18 09:01:01,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:01:01" (1/1) ... [2018-11-18 09:01:01,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:01:01,900 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:01:02,013 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:01:02,016 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:01:02,030 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:01:02,042 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:01:02,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02 WrapperNode [2018-11-18 09:01:02,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:01:02,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:01:02,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:01:02,043 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:01:02,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02" (1/1) ... [2018-11-18 09:01:02,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02" (1/1) ... [2018-11-18 09:01:02,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02" (1/1) ... [2018-11-18 09:01:02,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02" (1/1) ... [2018-11-18 09:01:02,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02" (1/1) ... [2018-11-18 09:01:02,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02" (1/1) ... [2018-11-18 09:01:02,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02" (1/1) ... [2018-11-18 09:01:02,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:01:02,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:01:02,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:01:02,070 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:01:02,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/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 [2018-11-18 09:01:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:01:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:01:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 09:01:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:01:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 09:01:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 09:01:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-11-18 09:01:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 09:01:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:01:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:01:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 09:01:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 09:01:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:01:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:01:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:01:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 09:01:02,308 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:01:02,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:02 BoogieIcfgContainer [2018-11-18 09:01:02,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:01:02,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:01:02,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:01:02,310 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:01:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:01:01" (1/3) ... [2018-11-18 09:01:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:01:02, skipping insertion in model container [2018-11-18 09:01:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:02" (2/3) ... [2018-11-18 09:01:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:01:02, skipping insertion in model container [2018-11-18 09:01:02,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:02" (3/3) ... [2018-11-18 09:01:02,313 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix_false-unreach-call_true-termination.i [2018-11-18 09:01:02,323 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:01:02,329 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:01:02,337 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:01:02,359 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:01:02,359 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:01:02,359 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:01:02,360 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:01:02,360 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:01:02,360 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:01:02,360 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:01:02,360 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:01:02,360 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:01:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-18 09:01:02,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 09:01:02,374 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:01:02,375 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:01:02,376 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:01:02,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:01:02,380 INFO L82 PathProgramCache]: Analyzing trace with hash -693261454, now seen corresponding path program 1 times [2018-11-18 09:01:02,381 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:01:02,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:01:02,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:02,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:02,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:02,435 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-18 09:01:02,435 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-18 09:01:02,435 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/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 [2018-11-18 09:01:02,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:01:02,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:01:02,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:01:02,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:01:02,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:01:02,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 09:01:02,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 09:01:02,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:01:02,509 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-11-18 09:01:02,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:01:02,523 INFO L93 Difference]: Finished difference Result 60 states and 79 transitions. [2018-11-18 09:01:02,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 09:01:02,523 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-18 09:01:02,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:01:02,528 INFO L225 Difference]: With dead ends: 60 [2018-11-18 09:01:02,529 INFO L226 Difference]: Without dead ends: 28 [2018-11-18 09:01:02,531 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:01:02,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-18 09:01:02,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-18 09:01:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 09:01:02,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2018-11-18 09:01:02,555 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2018-11-18 09:01:02,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:01:02,556 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2018-11-18 09:01:02,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 09:01:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-11-18 09:01:02,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 09:01:02,557 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:01:02,557 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:01:02,557 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:01:02,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:01:02,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1162396557, now seen corresponding path program 1 times [2018-11-18 09:01:02,557 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:01:02,557 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:01:02,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:02,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:02,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:02,563 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-18 09:01:02,563 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-18 09:01:02,563 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/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 [2018-11-18 09:01:02,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:01:02,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:01:02,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:01:02,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:01:02,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:01:02,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:01:02,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:01:02,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:01:02,672 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2018-11-18 09:01:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:01:02,722 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2018-11-18 09:01:02,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:01:02,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-18 09:01:02,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:01:02,724 INFO L225 Difference]: With dead ends: 60 [2018-11-18 09:01:02,725 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 09:01:02,725 INFO L604 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 [2018-11-18 09:01:02,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 09:01:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 30. [2018-11-18 09:01:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-18 09:01:02,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-11-18 09:01:02,731 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 17 [2018-11-18 09:01:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:01:02,731 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-11-18 09:01:02,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:01:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-11-18 09:01:02,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 09:01:02,732 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:01:02,732 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:01:02,732 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:01:02,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:01:02,733 INFO L82 PathProgramCache]: Analyzing trace with hash 243468249, now seen corresponding path program 1 times [2018-11-18 09:01:02,733 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:01:02,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:01:02,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:02,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:02,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:02,738 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-18 09:01:02,739 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-18 09:01:02,739 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/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 [2018-11-18 09:01:02,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:01:02,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:01:02,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:01:02,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:01:02,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:01:02,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:01:02,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:01:02,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:01:02,824 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2018-11-18 09:01:02,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:01:02,870 INFO L93 Difference]: Finished difference Result 72 states and 87 transitions. [2018-11-18 09:01:02,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:01:02,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-18 09:01:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:01:02,871 INFO L225 Difference]: With dead ends: 72 [2018-11-18 09:01:02,871 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 09:01:02,872 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:01:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 09:01:02,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-18 09:01:02,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 09:01:02,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-11-18 09:01:02,875 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 22 [2018-11-18 09:01:02,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:01:02,876 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2018-11-18 09:01:02,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:01:02,876 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-11-18 09:01:02,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 09:01:02,876 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:01:02,876 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:01:02,876 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:01:02,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:01:02,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1771241374, now seen corresponding path program 1 times [2018-11-18 09:01:02,877 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:01:02,877 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:01:02,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:02,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:02,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:02,882 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-18 09:01:02,882 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-18 09:01:02,882 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/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 [2018-11-18 09:01:02,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:01:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:01:02,957 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 09:01:02,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:01:02 BoogieIcfgContainer [2018-11-18 09:01:02,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:01:02,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:01:02,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:01:02,978 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:01:02,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:02" (3/4) ... [2018-11-18 09:01:02,980 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 09:01:03,013 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8cfdeba4-b24d-4349-ba89-5787626d5ee1/bin-2019/uautomizer/witness.graphml [2018-11-18 09:01:03,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:01:03,013 INFO L168 Benchmark]: Toolchain (without parser) took 1139.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -69.3 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:03,014 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:01:03,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.83 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:03,015 INFO L168 Benchmark]: Boogie Preprocessor took 27.03 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:03,015 INFO L168 Benchmark]: RCFGBuilder took 238.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:03,016 INFO L168 Benchmark]: TraceAbstraction took 668.69 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: 82.4 MB). Peak memory consumption was 82.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:03,016 INFO L168 Benchmark]: Witness Printer took 35.25 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:03,019 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.83 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.03 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 238.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 668.69 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: 82.4 MB). Peak memory consumption was 82.4 MB. Max. memory is 11.5 GB. * Witness Printer took 35.25 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: 2.7 MB). Peak memory consumption was 2.7 MB. 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] FCALL int matriz[N_COL][N_LIN], maior; [L19] maior = __VERIFIER_nondet_int() [L20] j=0 VAL [j=0, maior=-2147476742, matriz={6:0}, N_COL=1, N_LIN=1] [L20] COND TRUE jmaior [L26] EXPR, FCALL matriz[j][k] [L26] maior = matriz[j][k] [L21] k++ VAL [j=0, k=1, maior=-2147476741, matriz={6:0}, N_COL=1, N_LIN=1] [L21] COND FALSE !(k