./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-multidimensional/copy-partial-3-u_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/copy-partial-3-u_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/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 269d8c78f03cf287c7b740c1cbaca497af69bf0a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 22:49:02,117 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 22:49:02,118 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 22:49:02,124 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 22:49:02,124 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 22:49:02,124 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 22:49:02,125 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 22:49:02,126 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 22:49:02,127 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 22:49:02,128 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 22:49:02,128 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 22:49:02,128 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 22:49:02,129 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 22:49:02,130 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 22:49:02,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 22:49:02,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 22:49:02,132 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 22:49:02,133 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 22:49:02,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 22:49:02,135 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 22:49:02,136 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 22:49:02,137 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 22:49:02,138 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 22:49:02,138 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 22:49:02,139 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 22:49:02,139 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 22:49:02,140 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 22:49:02,140 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 22:49:02,141 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 22:49:02,142 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 22:49:02,142 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 22:49:02,142 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 22:49:02,143 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 22:49:02,143 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 22:49:02,143 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 22:49:02,143 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 22:49:02,144 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-09 22:49:02,154 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 22:49:02,154 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 22:49:02,154 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 22:49:02,154 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 22:49:02,155 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 22:49:02,155 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 22:49:02,155 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 22:49:02,155 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 22:49:02,155 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 22:49:02,155 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 22:49:02,156 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 22:49:02,156 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 22:49:02,156 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 22:49:02,156 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 22:49:02,156 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 22:49:02,156 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 22:49:02,156 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 22:49:02,156 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 22:49:02,157 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 22:49:02,157 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 22:49:02,157 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 22:49:02,157 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-09 22:49:02,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 22:49:02,157 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 22:49:02,157 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 22:49:02,157 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 22:49:02,157 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-09 22:49:02,157 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 22:49:02,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-09 22:49:02,158 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_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/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 -> 269d8c78f03cf287c7b740c1cbaca497af69bf0a [2018-11-09 22:49:02,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 22:49:02,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 22:49:02,193 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 22:49:02,194 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 22:49:02,195 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 22:49:02,195 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/../../sv-benchmarks/c/array-multidimensional/copy-partial-3-u_true-unreach-call.i [2018-11-09 22:49:02,238 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/data/1ac4881cc/78e07daf449c43498be5c135f0c8e2c9/FLAG92aeb8132 [2018-11-09 22:49:02,549 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 22:49:02,550 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/sv-benchmarks/c/array-multidimensional/copy-partial-3-u_true-unreach-call.i [2018-11-09 22:49:02,555 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/data/1ac4881cc/78e07daf449c43498be5c135f0c8e2c9/FLAG92aeb8132 [2018-11-09 22:49:02,566 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/data/1ac4881cc/78e07daf449c43498be5c135f0c8e2c9 [2018-11-09 22:49:02,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 22:49:02,569 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-09 22:49:02,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 22:49:02,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 22:49:02,572 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 22:49:02,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:49:02" (1/1) ... [2018-11-09 22:49:02,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61258a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02, skipping insertion in model container [2018-11-09 22:49:02,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:49:02" (1/1) ... [2018-11-09 22:49:02,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 22:49:02,595 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 22:49:02,703 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:49:02,706 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 22:49:02,723 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:49:02,733 INFO L193 MainTranslator]: Completed translation [2018-11-09 22:49:02,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02 WrapperNode [2018-11-09 22:49:02,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 22:49:02,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 22:49:02,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 22:49:02,734 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 22:49:02,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02" (1/1) ... [2018-11-09 22:49:02,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02" (1/1) ... [2018-11-09 22:49:02,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02" (1/1) ... [2018-11-09 22:49:02,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02" (1/1) ... [2018-11-09 22:49:02,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02" (1/1) ... [2018-11-09 22:49:02,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02" (1/1) ... [2018-11-09 22:49:02,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02" (1/1) ... [2018-11-09 22:49:02,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 22:49:02,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 22:49:02,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 22:49:02,759 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 22:49:02,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/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 [2018-11-09 22:49:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-09 22:49:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 22:49:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-09 22:49:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-09 22:49:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-09 22:49:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-09 22:49:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-09 22:49:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-09 22:49:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-09 22:49:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-09 22:49:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-09 22:49:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-09 22:49:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-09 22:49:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-09 22:49:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 22:49:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-09 22:49:03,016 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 22:49:03,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:49:03 BoogieIcfgContainer [2018-11-09 22:49:03,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 22:49:03,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-09 22:49:03,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-09 22:49:03,019 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-09 22:49:03,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:49:02" (1/3) ... [2018-11-09 22:49:03,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff4c056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:49:03, skipping insertion in model container [2018-11-09 22:49:03,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:02" (2/3) ... [2018-11-09 22:49:03,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff4c056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:49:03, skipping insertion in model container [2018-11-09 22:49:03,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:49:03" (3/3) ... [2018-11-09 22:49:03,022 INFO L112 eAbstractionObserver]: Analyzing ICFG copy-partial-3-u_true-unreach-call.i [2018-11-09 22:49:03,031 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-09 22:49:03,035 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-09 22:49:03,043 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-09 22:49:03,064 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 22:49:03,065 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-09 22:49:03,065 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-09 22:49:03,065 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-09 22:49:03,065 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 22:49:03,065 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 22:49:03,065 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-09 22:49:03,066 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 22:49:03,066 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-09 22:49:03,076 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-09 22:49:03,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-09 22:49:03,080 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:49:03,081 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:49:03,082 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:49:03,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:49:03,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1742397933, now seen corresponding path program 1 times [2018-11-09 22:49:03,086 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:49:03,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:49:03,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,151 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-09 22:49:03,152 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-09 22:49:03,152 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/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 [2018-11-09 22:49:03,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:49:03,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:49:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:49:03,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:49:03,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 22:49:03,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-09 22:49:03,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-09 22:49:03,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 22:49:03,234 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2018-11-09 22:49:03,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:49:03,255 INFO L93 Difference]: Finished difference Result 109 states and 146 transitions. [2018-11-09 22:49:03,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-09 22:49:03,256 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-09 22:49:03,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:49:03,262 INFO L225 Difference]: With dead ends: 109 [2018-11-09 22:49:03,262 INFO L226 Difference]: Without dead ends: 50 [2018-11-09 22:49:03,264 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 22:49:03,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-09 22:49:03,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-09 22:49:03,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-09 22:49:03,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2018-11-09 22:49:03,289 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 25 [2018-11-09 22:49:03,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:49:03,289 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2018-11-09 22:49:03,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-09 22:49:03,289 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2018-11-09 22:49:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-09 22:49:03,290 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:49:03,290 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:49:03,291 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:49:03,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:49:03,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1628061002, now seen corresponding path program 1 times [2018-11-09 22:49:03,291 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:49:03,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:49:03,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,298 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-09 22:49:03,298 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-09 22:49:03,298 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/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 [2018-11-09 22:49:03,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:49:03,335 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:49:03,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:49:03,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:49:03,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-09 22:49:03,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-09 22:49:03,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-09 22:49:03,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-09 22:49:03,399 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 4 states. [2018-11-09 22:49:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:49:03,495 INFO L93 Difference]: Finished difference Result 114 states and 136 transitions. [2018-11-09 22:49:03,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-09 22:49:03,495 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-09 22:49:03,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:49:03,497 INFO L225 Difference]: With dead ends: 114 [2018-11-09 22:49:03,497 INFO L226 Difference]: Without dead ends: 83 [2018-11-09 22:49:03,498 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-09 22:49:03,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-09 22:49:03,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 54. [2018-11-09 22:49:03,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-09 22:49:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2018-11-09 22:49:03,508 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 27 [2018-11-09 22:49:03,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:49:03,508 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2018-11-09 22:49:03,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-09 22:49:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2018-11-09 22:49:03,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-09 22:49:03,509 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:49:03,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:49:03,510 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:49:03,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:49:03,510 INFO L82 PathProgramCache]: Analyzing trace with hash -2132274755, now seen corresponding path program 1 times [2018-11-09 22:49:03,510 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:49:03,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:49:03,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,516 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-09 22:49:03,517 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-09 22:49:03,517 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/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 [2018-11-09 22:49:03,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:49:03,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:49:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-09 22:49:03,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:49:03,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-09 22:49:03,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-09 22:49:03,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-09 22:49:03,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-09 22:49:03,586 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand 4 states. [2018-11-09 22:49:03,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:49:03,668 INFO L93 Difference]: Finished difference Result 124 states and 147 transitions. [2018-11-09 22:49:03,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-09 22:49:03,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-11-09 22:49:03,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:49:03,670 INFO L225 Difference]: With dead ends: 124 [2018-11-09 22:49:03,670 INFO L226 Difference]: Without dead ends: 81 [2018-11-09 22:49:03,670 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-09 22:49:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-11-09 22:49:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 58. [2018-11-09 22:49:03,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-09 22:49:03,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2018-11-09 22:49:03,677 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 37 [2018-11-09 22:49:03,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:49:03,677 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2018-11-09 22:49:03,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-09 22:49:03,677 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2018-11-09 22:49:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-09 22:49:03,678 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:49:03,678 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:49:03,679 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:49:03,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:49:03,679 INFO L82 PathProgramCache]: Analyzing trace with hash 719317334, now seen corresponding path program 1 times [2018-11-09 22:49:03,679 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:49:03,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:49:03,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,683 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-09 22:49:03,683 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-09 22:49:03,683 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/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 [2018-11-09 22:49:03,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:49:03,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:49:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-09 22:49:03,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:49:03,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-09 22:49:03,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-09 22:49:03,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-09 22:49:03,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-09 22:49:03,739 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 4 states. [2018-11-09 22:49:03,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:49:03,815 INFO L93 Difference]: Finished difference Result 126 states and 147 transitions. [2018-11-09 22:49:03,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-09 22:49:03,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2018-11-09 22:49:03,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:49:03,816 INFO L225 Difference]: With dead ends: 126 [2018-11-09 22:49:03,816 INFO L226 Difference]: Without dead ends: 79 [2018-11-09 22:49:03,817 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-09 22:49:03,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-11-09 22:49:03,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 62. [2018-11-09 22:49:03,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-09 22:49:03,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2018-11-09 22:49:03,824 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 47 [2018-11-09 22:49:03,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:49:03,825 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2018-11-09 22:49:03,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-09 22:49:03,825 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2018-11-09 22:49:03,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-09 22:49:03,826 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:49:03,826 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:49:03,826 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:49:03,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:49:03,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1207415949, now seen corresponding path program 1 times [2018-11-09 22:49:03,827 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:49:03,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:49:03,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:03,833 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-09 22:49:03,833 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-09 22:49:03,833 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-09 22:49:03,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:49:03,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:49:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-09 22:49:03,929 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-09 22:49:03,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-11-09 22:49:03,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-09 22:49:03,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-09 22:49:03,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-09 22:49:03,930 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 5 states. [2018-11-09 22:49:04,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:49:04,030 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2018-11-09 22:49:04,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-09 22:49:04,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2018-11-09 22:49:04,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:49:04,031 INFO L225 Difference]: With dead ends: 151 [2018-11-09 22:49:04,031 INFO L226 Difference]: Without dead ends: 100 [2018-11-09 22:49:04,032 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-09 22:49:04,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-11-09 22:49:04,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 71. [2018-11-09 22:49:04,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-09 22:49:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2018-11-09 22:49:04,038 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 56 [2018-11-09 22:49:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:49:04,038 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2018-11-09 22:49:04,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-09 22:49:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2018-11-09 22:49:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-09 22:49:04,040 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:49:04,040 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:49:04,040 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:49:04,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:49:04,041 INFO L82 PathProgramCache]: Analyzing trace with hash -763883740, now seen corresponding path program 2 times [2018-11-09 22:49:04,041 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:49:04,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:49:04,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:04,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:49:04,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:49:04,047 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-09 22:49:04,047 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-09 22:49:04,047 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-09 22:49:04,072 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-09 22:49:04,089 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-09 22:49:04,090 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-09 22:49:04,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:49:04,133 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2018-11-09 22:49:04,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 3 [2018-11-09 22:49:04,136 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-09 22:49:04,139 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:49:04,140 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:49:04,140 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:51, output treesize:3 [2018-11-09 22:49:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-09 22:49:04,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:49:04,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-09 22:49:04,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-09 22:49:04,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-09 22:49:04,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-09 22:49:04,188 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand 6 states. [2018-11-09 22:49:04,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:49:04,283 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2018-11-09 22:49:04,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-09 22:49:04,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2018-11-09 22:49:04,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:49:04,284 INFO L225 Difference]: With dead ends: 71 [2018-11-09 22:49:04,284 INFO L226 Difference]: Without dead ends: 0 [2018-11-09 22:49:04,285 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-09 22:49:04,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-09 22:49:04,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-09 22:49:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-09 22:49:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-09 22:49:04,285 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2018-11-09 22:49:04,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:49:04,286 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 22:49:04,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-09 22:49:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-09 22:49:04,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-09 22:49:04,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-09 22:49:04,394 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-09 22:49:04,394 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-09 22:49:04,394 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-09 22:49:04,394 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-09 22:49:04,394 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-09 22:49:04,394 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-09 22:49:04,394 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-09 22:49:04,394 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 81) no Hoare annotation was computed. [2018-11-09 22:49:04,395 INFO L425 ceAbstractionStarter]: For program point L52-1(lines 52 55) no Hoare annotation was computed. [2018-11-09 22:49:04,395 INFO L421 ceAbstractionStarter]: At program point L52-3(lines 52 55) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-09 22:49:04,395 INFO L425 ceAbstractionStarter]: For program point L52-4(lines 52 55) no Hoare annotation was computed. [2018-11-09 22:49:04,395 INFO L425 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-11-09 22:49:04,395 INFO L425 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2018-11-09 22:49:04,395 INFO L425 ceAbstractionStarter]: For program point L53-2(line 53) no Hoare annotation was computed. [2018-11-09 22:49:04,395 INFO L425 ceAbstractionStarter]: For program point L70-1(lines 70 77) no Hoare annotation was computed. [2018-11-09 22:49:04,395 INFO L421 ceAbstractionStarter]: At program point L70-3(lines 70 77) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-09 22:49:04,395 INFO L425 ceAbstractionStarter]: For program point L70-4(lines 70 77) no Hoare annotation was computed. [2018-11-09 22:49:04,395 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 36) no Hoare annotation was computed. [2018-11-09 22:49:04,396 INFO L421 ceAbstractionStarter]: At program point L29-3(lines 29 36) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-09 22:49:04,396 INFO L425 ceAbstractionStarter]: For program point L29-4(lines 29 36) no Hoare annotation was computed. [2018-11-09 22:49:04,396 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 81) no Hoare annotation was computed. [2018-11-09 22:49:04,396 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 81) the Hoare annotation is: true [2018-11-09 22:49:04,396 INFO L425 ceAbstractionStarter]: For program point L47-1(lines 47 59) no Hoare annotation was computed. [2018-11-09 22:49:04,396 INFO L421 ceAbstractionStarter]: At program point L47-3(lines 47 59) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-09 22:49:04,396 INFO L425 ceAbstractionStarter]: For program point L47-4(lines 47 59) no Hoare annotation was computed. [2018-11-09 22:49:04,396 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 72 75) no Hoare annotation was computed. [2018-11-09 22:49:04,396 INFO L421 ceAbstractionStarter]: At program point L72-3(lines 72 75) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-09 22:49:04,396 INFO L425 ceAbstractionStarter]: For program point L72-4(lines 72 75) no Hoare annotation was computed. [2018-11-09 22:49:04,397 INFO L425 ceAbstractionStarter]: For program point L31-1(lines 31 34) no Hoare annotation was computed. [2018-11-09 22:49:04,397 INFO L421 ceAbstractionStarter]: At program point L31-3(lines 31 34) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-09 22:49:04,397 INFO L425 ceAbstractionStarter]: For program point L31-4(lines 31 34) no Hoare annotation was computed. [2018-11-09 22:49:04,397 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-09 22:49:04,397 INFO L425 ceAbstractionStarter]: For program point L73-1(line 73) no Hoare annotation was computed. [2018-11-09 22:49:04,397 INFO L421 ceAbstractionStarter]: At program point L73-2(line 73) the Hoare annotation is: (and (<= 500 main_~p~0) (= (select (select |#memory_int| |main_~#A~0.base|) (+ (let ((.cse0 (* 4 main_~n~0))) (+ (+ |main_~#A~0.offset| (* main_~i~0 (* .cse0 main_~n~0))) (* main_~j~0 .cse0))) (* 4 main_~k~0))) |main_#t~mem3|) (= |main_#t~mem4| |main_#t~mem3|)) [2018-11-09 22:49:04,397 INFO L425 ceAbstractionStarter]: For program point L73-3(line 73) no Hoare annotation was computed. [2018-11-09 22:49:04,397 INFO L425 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-11-09 22:49:04,397 INFO L425 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-11-09 22:49:04,397 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-09 22:49:04,398 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 57) no Hoare annotation was computed. [2018-11-09 22:49:04,398 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-09 22:49:04,398 INFO L421 ceAbstractionStarter]: At program point L50-3(lines 50 57) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-09 22:49:04,398 INFO L425 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-11-09 22:49:04,398 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 50 57) no Hoare annotation was computed. [2018-11-09 22:49:04,398 INFO L425 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-11-09 22:49:04,398 INFO L425 ceAbstractionStarter]: For program point L67-1(lines 67 79) no Hoare annotation was computed. [2018-11-09 22:49:04,398 INFO L421 ceAbstractionStarter]: At program point L67-3(lines 67 79) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-09 22:49:04,398 INFO L425 ceAbstractionStarter]: For program point L67-4(lines 67 79) no Hoare annotation was computed. [2018-11-09 22:49:04,398 INFO L425 ceAbstractionStarter]: For program point L26-1(lines 26 38) no Hoare annotation was computed. [2018-11-09 22:49:04,398 INFO L421 ceAbstractionStarter]: At program point L26-3(lines 26 38) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-09 22:49:04,399 INFO L425 ceAbstractionStarter]: For program point L26-4(lines 26 38) no Hoare annotation was computed. [2018-11-09 22:49:04,399 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-09 22:49:04,399 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-09 22:49:04,399 INFO L425 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-11-09 22:49:04,399 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-09 22:49:04,399 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-09 22:49:04,399 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-09 22:49:04,399 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-09 22:49:04,399 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-09 22:49:04,400 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-09 22:49:04,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:49:04 BoogieIcfgContainer [2018-11-09 22:49:04,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-09 22:49:04,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 22:49:04,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 22:49:04,411 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 22:49:04,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:49:03" (3/4) ... [2018-11-09 22:49:04,414 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-09 22:49:04,420 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-09 22:49:04,420 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-09 22:49:04,420 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-09 22:49:04,424 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-09 22:49:04,424 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-09 22:49:04,424 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-09 22:49:04,425 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-09 22:49:04,463 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6bd48624-a02b-43b0-9e5c-13ba04ce86c6/bin-2019/uautomizer/witness.graphml [2018-11-09 22:49:04,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 22:49:04,464 INFO L168 Benchmark]: Toolchain (without parser) took 1895.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 959.2 MB in the beginning and 903.3 MB in the end (delta: 56.0 MB). Peak memory consumption was 187.6 MB. Max. memory is 11.5 GB. [2018-11-09 22:49:04,465 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:49:04,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.39 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. [2018-11-09 22:49:04,465 INFO L168 Benchmark]: Boogie Preprocessor took 24.54 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. [2018-11-09 22:49:04,466 INFO L168 Benchmark]: RCFGBuilder took 257.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-09 22:49:04,466 INFO L168 Benchmark]: TraceAbstraction took 1393.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 908.6 MB in the end (delta: 200.7 MB). Peak memory consumption was 200.7 MB. Max. memory is 11.5 GB. [2018-11-09 22:49:04,466 INFO L168 Benchmark]: Witness Printer took 52.06 ms. Allocated memory is still 1.2 GB. Free memory was 908.6 MB in the beginning and 903.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-09 22:49:04,468 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.39 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 24.54 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 257.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1393.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 908.6 MB in the end (delta: 200.7 MB). Peak memory consumption was 200.7 MB. Max. memory is 11.5 GB. * Witness Printer took 52.06 ms. Allocated memory is still 1.2 GB. Free memory was 908.6 MB in the beginning and 903.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 500 <= p - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 59 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 264 SDtfs, 401 SDslu, 303 SDs, 0 SdLazy, 242 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 98 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 20 PreInvPairs, 38 NumberOfFragments, 64 HoareAnnotationTreeSize, 20 FomulaSimplifications, 1356 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 257 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 18911 SizeOfPredicates, 17 NumberOfNonLiveVariables, 662 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 47/49 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...